# Shandong JinteLai Precision Machinery Co., Ltd.

> Shandong JinteLai Precision Machinery Co., Ltd.


## Posts

- [Flatness Measurement](https://jtlcnc.com/2026/01/29/flatness-measurement/): I. Preparations before measurement: All set, just need to measureFirstly, we need to ensure the stability of the measurement environment.
- [The difference between marble platforms of grade 0 and grade 00](https://jtlcnc.com/2026/01/29/the-difference-between-marble-platforms-of-grade-0-and-grade-00-2/): The difference in the division of marble platform grades the use and understanding of marble platforms, many people are not very clear about the division of flatness grades of marble platforms, only knowing the names such as grade 0, grade00, and grade 000, but they are not sure what the specific precision is.
- [Advanced Material Properties of Granite Surface Plates for Precision Metrology](https://jtlcnc.com/2026/01/28/advanced-material-properties-of-granite-surface-plates-for-precision-metrology/): Granite surface plates are renowned in metrology for their exceptional physical and mechanical properties.
- [Multi-Stage Manufacturing Processes of Granite Inspection Plates](https://jtlcnc.com/2026/01/28/multi-stage-manufacturing-processes-of-granite-inspection-plates/): Raw Material Selection: Blocks are sourced from quarries with consistent mineral composition (typically 60-70% quartz, 15-20% feldspar, and <10% mica).
- [Future Trends in Granite Surface Plate Technology](https://jtlcnc.com/2026/01/27/future-trends-in-granite-surface-plate-technology/): Composite Structures: Researchers are developing metal-ceramic hybrids with tailored thermal gradients for extreme environments.
- [Innovations in Granite Mechanical Component Technology](https://jtlcnc.com/2026/01/27/innovations-in-granite-mechanical-component-technology/): Gradient Composites: Layered structures with metal-ceramic interfaces offer tailored thermal conductivity for aerospace applications.
- [Calibration and Maintenance Strategies for Granite Surface Plates](https://jtlcnc.com/2026/01/26/calibration-and-maintenance-strategies-for-granite-surface-plates/): Autocollimators: Provide angular measurements with 0.05" resolution.
- [Industrial Applications of Granite Mechanical Components](https://jtlcnc.com/2026/01/26/industrial-applications-of-granite-mechanical-components/): CNC Machine Bases: Granites high damping ratio (7-9%) reduces vibration-induced errors in high-speed machining.
- [Application Characteristics of Granite Platforms in Coordinate Measuring Machines (CMM)](https://jtlcnc.com/2026/01/24/application-characteristics-of-granite-platforms-in-coordinate-measuring-machines-cmm/): Granite platforms serve as the core base/working table of Coordinate Measuring Machines, and their application characteristics are centered on the stability and precision retention required for high-precision measurement, perfectly adapting to the stringent accuracy demands of CMMs.
- [Applications of Granite Precision Platforms in Industrial Metrology and Manufacturing](https://jtlcnc.com/2026/01/23/applications-of-granite-precision-platforms-in-industrial-metrology-and-manufacturing/): Applications of Granite Precision Platforms in Industrial Metrology and Manufacturing Granite precision platforms, also known as granite surface plates or marble measuring tables, are the unrivaled gold standard in high-precision industrial measurement and manufacturing.
- [Advanced Manufacturing Techniques for Granite Mechanical Components](https://jtlcnc.com/2026/01/22/advanced-manufacturing-techniques-for-granite-mechanical-components/): Block Selection: High-purity granite blocks (SiO₂ >70%) are sourced using ultrasonic testing to detect internal flaws.
- [Material Science of Granite Mechanical Components for Precision Engineering](https://jtlcnc.com/2026/01/22/material-science-of-granite-mechanical-components-for-precision-engineering/): Mechanical Strength: With a compressive strength of 245-254 MPa and elastic modulus of 1.27-1.47 N/mm2, granite withstands heavy loads without deformation.
- [Development trend of marble platform and components products](https://jtlcnc.com/2026/01/21/development-trend-of-marble-platform-and-components-products/): Development trend of marble platform and components products: Machining and micro-machining technology is an important development direction of mechanical manufacturing industry and it has become an important symbol to measure the level of high-tech.
- [Precautions for Granite precision components assembly](https://jtlcnc.com/2026/01/20/precautions-for-granite-precision-components-assembly/): During the assembly process, whether it is cast iron parts or marble components, stone or other materials, there are many key points that need to be followed collectively to comply with the contract.
- [Grinding process steps for granite surface plate](https://jtlcnc.com/2026/01/19/grinding-process-steps-for-granite-surface-plate/): Grinding process steps for granite precision mechanical platform 1.
- [The treatment method for the precision deviation and stability decrease of the granite surface plate](https://jtlcnc.com/2026/01/15/the-treatment-method-for-the-precision-deviation-and-stability-decrease-of-the-granite-surface-plate/): Firstly, it is imperative to cease operation on the high-precision workbench and conduct a systematic inspection.
- [Daily maintenance and care of the granite surface plate](https://jtlcnc.com/2026/01/14/daily-maintenance-and-care-of-the-granite-surface-plate/): - Avoid direct impact or dragging of sharp tools and heavy objects. Place workpieces gently.
- [Core application areas of granite precision mechanical components](https://jtlcnc.com/2026/01/13/core-application-areas-of-granite-precision-mechanical-components/): Optical and optoelectronic systems · Telescope support: Large granite structures support lens groups, resisting environmental deformation.
- [Distinction of marble platform grade division;](https://jtlcnc.com/2026/01/13/the-difference-between-marble-platforms-of-grade-0-and-grade-00/): The difference in the division of marble platform grades the use and understanding of marble platforms, many people are not very clear about the division of flatness grades of marble platforms, only knowing the names such as grade 0, grade00, and grade 000, but they are not sure what the specific precision is.
- [Maintenance and care of granite measuring tools](https://jtlcnc.com/2026/01/08/maintenance-and-care-of-granite-measuring-tools/): Granite measuring tools are widely used in precision manufacturing, scientific research, and other fields due to their high precision, corrosion resistance, and stability.
- [Usage scenarios of granite measuring tools](https://jtlcnc.com/2026/01/08/usage-scenarios-of-granite-measuring-tools/): Granite measuring tools are widely used in scenarios with strict requirements for measurement accuracy and environmental adaptability due to their high precision, corrosion resistance, and anti-interference properties.
- [Disadvantages of granite measuring tools](https://jtlcnc.com/2026/01/08/disadvantages-of-granite-measuring-tools/): Performance: Although granite has high hardness, it is brittle and prone to cracking or angular collapse when subjected to external impacts such as falling or heavy objects, even leading to overall fracture.
- [How long is the service life of granite measuring tools](https://jtlcnc.com/2026/01/08/how-long-is-the-service-life-of-granite-measuring-tools/): The service life of granite measuring tools usually exceeds 30 years, and with proper use and maintenance, their actual life may be even longer, with some cases showing that it can last for decades or even hundreds of years.
- [Advantages of granite measuring tools](https://jtlcnc.com/2026/01/08/advantages-of-granite-measuring-tools/): Granite measuring tools have demonstrated significant advantages in the field of precision measurement due to their unique material properties.
- [Material characteristics of granite measuring tools](https://jtlcnc.com/2026/01/08/material-characteristics-of-granite-measuring-tools/): The main mineral components of granite are quartz, feldspar, and a small amount of biotite, with a Mohs hardness of 6.5 or above and a Shore hardness (HS) of over 70.
- [How to ensure the machining accuracy and quality of granite platforms](https://jtlcnc.com/2026/04/08/how-to-ensure-the-machining-accuracy-and-quality-of-granite-platforms/)
- [How to use a granite square correctly to reduce measurement errors?](https://jtlcnc.com/2026/04/08/how-to-use-a-granite-square-correctly-to-reduce-measurement-errors/): The granite square, the workpiece, and the measuring platform must be placed in the same environment for ≥2 hours.
- [Technical requirements for marble and granite mechanical parts](https://jtlcnc.com/2026/04/07/technical-requirements-for-marble-and-granite-mechanical-parts/): I. Material and Appearance Requirements 1.
- [Development Trends and Characteristics of Granite Gantry Components](https://jtlcnc.com/2026/04/07/development-trends-and-characteristics-of-granite-gantry-components/): Granite gantry components (precision granite gantry beds, crossbeams, columns, etc.)
- [What is the best material for the worktable of a coordinate measuring machine?](https://jtlcnc.com/2026/04/06/what-is-the-best-material-for-the-worktable-of-a-coordinate-measuring-machine/): For the worktable of high-precision Coordinate Measuring Machines (CMMs), the preferred material is high-qualision granite (mainly Jinan Black); industrial ceramics can be selected for ultra-high precision scenarios; and aluminum alloy is suitable for general or mobile types.
- [Industrial universal granite guide platform, precise, stable](https://jtlcnc.com/2026/04/06/industrial-universal-granite-guide-platform-precise-stable/): Or embedded high-precision linear guides (THK/PMI, etc.)
- [How to determine if the precision of a granite equipment base meets the standard?](https://jtlcnc.com/2026/04/05/how-to-determine-if-the-precision-of-a-granite-equipment-base-meets-the-standard/): → Indicates that flatness is no longer up to standard.
- [How to determine if a granite equipment base needs cleaning?](https://jtlcnc.com/2026/04/05/how-to-determine-if-a-granite-equipment-base-needs-cleaning/): Especially powder ulation near guides, edges, and threaded holes indicates that heat dissipation and precision have been affected.
- [How to avoid common mistakes when cleaning granite equipment bases?](https://jtlcnc.com/2026/04/04/how-to-avoid-common-mistakes-when-cleaning-granite-equipment-bases/): Including oxalic acid, chloric acid, caustic soda, powerful descalers, and rust removers, which will corrode stone micro-pores, destroy the gloss, and cause hidden cracks.
- [Common mistakes to avoid when maintaining granite equipment bases](https://jtlcnc.com/2026/04/04/common-mistakes-to-avoid-when-maintaining-granite-equipment-bases/): Hydrochloacid, oxalic acid, and strong alkaline cleaners will corrode the granite surface, destroy the gloss, and even cause micro-cracks and powdering.
- [Daily maintenance tips for granite parallels](https://jtlcnc.com/2026/04/03/daily-maintenance-tips-for-granite-parallels/): Granite Parallel Rule (also known as Marble Parallel Rule) is a high-precision precision measuriol.
- [Can the accuracy of a granite platform be repaired?](https://jtlcnc.com/2026/04/03/can-the-accuracy-of-a-granite-platform-be-repaired/): It can be repaired, and the precision of the granite platform (marble platform) can be restored through professional grinding, which is a very routine operation in the industry.
- [What is the main difference between the precision measurement of granite square rulers and cast iron square rulers?](https://jtlcnc.com/2026/04/02/what-is-the-main-difference-between-the-precision-measurement-of-granite-square-rulers-and-cast-iron-square-rulers/): The core differences between granite square rulers and cast iron square rulers in precision measurement stem from essential disparitiesr dimensions: material physical properties, precision stability, usage and maintenance, and applicable scenarios, directly determining measurement reliability and long-term precision performance.
- [Why is granite countertop polishing crucial?](https://jtlcnc.com/2026/04/02/why-is-granite-countertop-polishing-crucial/): In precision granite components, surface grinding is not merely about "smoothing"; it is the core process that determines precision, lifespan, stability, and perform, and it can be said that 80% of the value of granite components lies in the quality of the grinding.
- [The Important Role of Granite Platform Components in Precision Machinery](https://jtlcnc.com/2026/04/01/the-important-role-of-granite-platform-components-in-precision-machinery/): In precision machinery, a granite platform is not merely "a piece of stone," but the reference and backbone fotire machine's precision, directly determining whether the equipment can operate stably at the micron and nanometer levels.
- [Full manufacturing process of granite components](https://jtlcnc.com/2026/04/01/full-manufacturing-process-of-granite-components/): The manufacturing of precision granite components (platforms, bases, guides, gantries a precision process chain from raw blocks to micrometer-level finished products, with the core being stability, stress relief, step-by-step precision machining, and strict inspection.
- [How to choose the right granite platform: several key factors](https://jtlcnc.com/2026/03/31/how-to-choose-the-right-granite-platform-several-key-factors/): Insufficient precision means even expensive equipment cannot measure accurately or process stably.
- [How to use a granite base for laser processing](https://jtlcnc.com/2026/03/31/how-to-use-a-granite-base-for-laser-processing/): Use a granite base for laser processing, leveraging its ultra-stability, ultra-flatness, low therml expansion, and high damping characteristics to provide a zero-drift reference for the laser head/workpiece.
- [Why is granite chosen as the base for LCD panel inspection equipment products?](https://jtlcnc.com/2026/03/30/why-is-granite-chosen-as-the-base-for-lcd-panel-inspection-equipment-products/): The base of the LCD panel inspection equipment is made of granite.
- [What precautions should be taken when using LCD panel inspection equipment with a granite base?](https://jtlcnc.com/2026/03/30/what-precautions-should-be-taken-when-using-lcd-panel-inspection-equipment-with-a-granite-base/): The floor foundation must be level and sufficiently rigid.anite has an extremely high self-weight; ground settlement or slight tilting will cause deformation of the overall planarity, directly affecting detection accuracy.
- [How to eliminate internal stress in precision granite platforms during the production process?](https://jtlcnc.com/2026/03/29/how-to-eliminate-internal-stress-in-precision-granite-platforms-during-the-production-process/): Precision granite platforms indeed possess internal stresses, which are key factors affecting their long-term dimensional stability aon retention.
- [How does the duration of aging treatment affect the accuracy of precision granite platforms?](https://jtlcnc.com/2026/03/28/how-does-the-duration-of-aging-treatment-affect-the-accuracy-of-precision-granite-platforms/): The more adequate the aging time, the more thoroughly the internal stresses of the granite platform are released, resulting in more stable long-term accuracy and less deformation; however, excessive aging leads to diminishing marginal returns on accuracy improvement and significantly increases costs.
- [Granite Precision Machine Components: Characteristics, Applications, and Future of High-Precision Industrial Foundations(三)](https://jtlcnc.com/2026/03/28/granite-precision-machine-components-characteristics-applications-and-future-of-high-precision-industrial-foundations%e4%b8%89/): The manufacturing of precision granite components represents a perfect combination of "natural material properties" and "artificial precision machining" — the core challenge lies in how to process the material into components that meet ultra-precision requirements while retaining the natural stability of the granite.
- [Granite Precision Machine Components: Characteristics, Applications, and Future of High-Precision Industrial Foundations(二)](https://jtlcnc.com/2026/03/27/granite-precision-machine-components-characteristics-applications-and-future-of-high-precision-industrial-foundations%e4%ba%8c/): The application scenarios of granite precision components are concentrated in fields with stringent requirements for precisi stability — their core value lies in addressing the "long-term high-precision retention" demands that traditional materials cannot meet.
- [Granite Precision Machine Components: Characteristics, Applications, and Future of High-Precision Industrial Foundations(一)](https://jtlcnc.com/2026/03/27/granite-precision-machine-components-characteristics-applications-and-future-of-high-precision-industrial-foundations%e4%b8%80/): What are granite precision mechanical components?
- [How can buyers verify whether precision granite worktops truly meet precision requirements, and which inspection reports are the most important?](https://jtlcnc.com/2026/03/26/how-can-buyers-verify-whether-precision-granite-worktops-truly-meet-precision-requirements-and-which-inspection-reports-are-the-most-important/): Perpendicularity / Parallelism / Straightness: Comparison of actual values vs.
- [Granite set squares, V-blocks, and parallel rulers remain indispensable in modern precision workshops.](https://jtlcnc.com/2026/03/26/granite-set-squares-v-blocks-and-parallel-rulers-remain-indispensable-in-modern-precision-workshops/): Extremely strong stability: Minimal dimensional impact from temperature changes; does not deform or warp over the long term.
- [Why Precision Granite Surface Plates Are Crucial](https://jtlcnc.com/2026/03/25/why-precision-granite-surface-plates-are-crucial/): In precision measurement, precision machining, and semiconductor and optical equipment, a precision granite surface plate is not merely "a piece of stone," but the precision reference and physical foundation of the entire device.
- [The Impact of the Hidden Value of Granite Prices on Instrument Accuracy](https://jtlcnc.com/2026/03/25/the-impact-of-the-hidden-value-of-granite-prices-on-instrument-accuracy/): The hidden value of granite prices lies in the fact that through three dimensions—material stability, machininecision, and long-term reliability—it directly determines the instrument's static datum precision, dynamic disturbance resistance, and long-term precision retention, serving as the underlying guarantee for precision instruments to achievon/nanometer-level stable measurements.
- [The Impact of Granite Gantry Base on CNC Machine Tools（四）](https://jtlcnc.com/2026/03/24/the-impact-of-granite-gantry-base-on-cnc-machine-tools%ef%bc%88%e5%9b%9b%ef%bc%89/): Different types of CNC machine tools exhibit significantfferences in their motion modes, load characteristics, and precision requirements — which directly determines the property requirements for the base material.
- [The Impact of Granite Gantry Base on CNC Machine Tools（三）](https://jtlcnc.com/2026/03/24/the-impact-of-granite-gantry-base-on-cnc-machine-tools%ef%bc%88%e4%b8%89%ef%bc%89/): To more clearly demonstrate the characteristics of granite, it is compared with the currently maiam cast iron and artificial marble (mineral casting) bases across multiple dimensions.
- [The Impact of Granite Gantry Base on CNC Machine Tools（二）](https://jtlcnc.com/2026/03/23/the-impact-of-granite-gantry-base-on-cnc-machine-tools%ef%bc%88%e4%ba%8c%ef%bc%89/): As a metamorphic rock, the natural aging process of ver hundreds of millions of years endows it with intrinsic physical properties that are difficult for artificial materials such as cast iron and artificial marble to match.
- [The Impact of Granite Gantry Base on CNC Machine Tools（一）](https://jtlcnc.com/2026/03/23/the-impact-of-granite-gantry-base-on-cnc-machine-tools%ef%bc%88%e4%b8%80%ef%bc%89/): Granite gantry bases have become a critical foundation component for high-precision, high-speed CNC machine tools to achieve ultra-precision machining, with theilue stemming from the extremely low internal stress, high damping characteristics, and low coefficient of thermal expansion endowed by natural geological aging.
- [Performance Analysis of Granite Carving Machine Base](https://jtlcnc.com/2026/03/22/performance-analysis-of-granite-carving-machine-base/): Marble platforms are precision reference measuring tools made of natural stone materials.
- [Custom Production of Granite Components: How to Choose the Right Supplier](https://jtlcnc.com/2026/03/21/custom-production-of-granite-components-how-to-choose-the-right-supplier/): In the field of precision manufacturing, granite components play a crucial role in numerous industries due to their unique performance advantages.
- [Precision Granite: Global Standard for Modern Metrology and Inspection Laboratories and In-depth Analysis of Its Technical Characteristics](https://jtlcnc.com/2026/03/20/precision-granite-global-standard-for-modern-metrology-and-inspection-laboratories-and-in-depth-analysis-of-its-technical-characteristics/): Precision granite serves as the global benchmark material in modern metrology and inspection laboratories, as well as in the field of hianufacturing equipment.
- [How to determine if a granite platform is damp?](https://jtlcnc.com/2026/03/20/how-to-determine-if-a-granite-platform-is-damp/): Water marks or damp stains appear on the surface.
- [How to prevent granite countertops from getting damp and moldy](https://jtlcnc.com/2026/03/19/how-to-prevent-granite-countertops-from-getting-damp-and-moldy/): I. Why Does Granite "Absorb Moisture and Mold"?
- [Granite is becoming the ideal base material for CNC machine tools and robotic automation.](https://jtlcnc.com/2026/03/19/2147/): Granite is becoming the ideal base material for CNC machine tools and robotic automation, thanks to its extreme thermal stability, superior damping and vibration reduction, long-term precisiotention, and low maintenance costs, perfectly matching the stringent requirements of high-end manufacturing for micron-level precision and long-term stability.
- [Why are laser equipment retrofits and upgrades almost universally switching to granite bases now?](https://jtlcnc.com/2026/03/17/why-are-laser-equipment-retrofits-and-upgrades-almost-universally-switching-to-granite-bases-now/): Why are laser equipment retrofits and upgrades almost universally switching to granite bases now?
- [Limitations and Challenges of Granite](https://jtlcnc.com/2026/03/17/limitations-and-challenges-of-granite/): Granite's high hardness coexiith its brittleness — its fracture toughness is only 0.5–1.0 MPa·m¹/², approximately 1/10 that of cast iroresulting in weak impact resistance.
- [Why is granite the ideal material for the base of optical instruments and precision equipment?](https://jtlcnc.com/2026/03/16/why-is-granite-the-ideal-material-for-the-base-of-optical-instruments-and-precision-equipment/): In the field of ultra-precision manufacturing and metrology, equipment bases are not merely simple support structures, but the physi carriers of precision benchmarks—their performance directly determines the imaging resolution of optical systems, the accuracy of parameters in semiconductor inspection, and even the full lifecycle yield of core equipment such as lithogramachines and coordinate measuring machines.
- [What are the specific application cases of natural granite as the preferred material for semiconductor inspection platforms?](https://jtlcnc.com/2026/03/16/what-are-the-specific-application-cases-of-natural-granite-as-the-preferred-material-for-semiconductor-inspection-platforms/): Natural granite is the preferred structural material for semiconductor inspection platforms, with extensive mature applications in wafe inspection, optical inspection, CMM measurement, AOI/X-ray inspection, probe stations, and metrology equipment.
- [How to maintain a precision granite air-bearing platform?](https://jtlcnc.com/2026/03/15/how-to-maintain-a-precision-granite-air-bearing-platform/): Prevent dry grinding of air beng blocks to scratch the granite surface.
- [How to determine if the air holes of a precision granite air-bearing platform are clogged?](https://jtlcnc.com/2026/03/15/how-to-determine-if-the-air-holes-of-a-precision-granite-air-bearing-platform-are-clogged/): The slide table floats evenly after air supply, with consistent gaps around the edges and stability.
- [What are the accuracy grades of air bearing platforms?](https://jtlcnc.com/2026/03/13/what-are-the-accuracy-grades-of-air-bearing-platforms/): Below this, it is generally not considered a precisioning platform.
- [Which equipment are air-bearing platforms of different precision grades suitable for?](https://jtlcnc.com/2026/03/13/which-equipment-are-air-bearing-platforms-of-different-precision-grades-suitable-for/): It meets the requirements of the vast majority of high-end manufacturing, precision inspection, optical alignment, and automated precision equipment, making it the most mainstream, unal, and cost-effective choice in the industry.
- [Precision granite air-bearing platform](https://jtlcnc.com/2026/03/12/precision-granite-air-bearing-platform/): Working Principle: High-pressure clean air is sprayed through porous graphite/throttle hes to form a uniform air film of 5–15 μm between the granite base and the moving slide; contactless levitation achieves zero-friction motion, while relying on air fitiffness for load-bearing and guidance; often combined with vacuum preloading/magnetic preloading to enhance anti-overturning and load-bearing stiffness.
- [Granite as the base of a coordinate measuring machine](https://jtlcnc.com/2026/03/12/granite-as-the-base-of-a-coordinate-measuring-machine/): The granite base (worktable gantry/column fraa CMM serves as the absolute reference for measurement, establishing a stable three-dimensional coordinate system, supporting workpieces and moving components, and suppressing vibration and thermal deformation; high-end models ofadopt an all-granite structure (integrated three-axis guides) to ensure overall thermal consistency.
- [Full process of granite component processing](https://jtlcnc.com/2026/03/11/full-process-of-granite-component-processing/): III. Stress Relief (Determines whether it will shatter or deform) the easiest step for procurement to overlook, but the most fatal.
- [How to prevent granite platform cracking](https://jtlcnc.com/2026/03/11/how-to-prevent-granite-platform-cracking/): Prioritize fine-grained granite with few cracks and layers, such as Jinan Green and Zhangqiu Black.
- [What factors affect the coaxiality of coordinate measuring machines?](https://jtlcnc.com/2026/03/10/what-factors-affect-the-coaxiality-of-coordinate-measuring-machines/): Factors affecting the coaxiality of Coordinate Measuring Machines (CMMs) essentially boil down to: inaccurate axint, unstable workpieces, machine inaccuracy, unstable environment, and improper methods.
- [Development Trends of Granite Platforms and Components](https://jtlcnc.com/2026/03/10/development-trends-of-granite-platforms-and-components/): Precision granite platforms and components are upgrading in five major directions: high precision, integration, intelligence, greenness, and servitization.
- [Features of granite guide rail platforms](https://jtlcnc.com/2026/03/09/features-of-granite-guide-rail-platforms/): Natural aging, extremely low internal stress: High-quality granite (s Jinan Black) undergoes geological aging over hundreds of millions of years, releasing internal residual stress.
- [How to check the flatness error of a granite platform](https://jtlcnc.com/2026/03/09/how-to-check-the-flatness-error-of-a-granite-platform/): Flatness error inspection of granite platforms shall be conducted in accordance with GB/T 20428-2006 "Rock Slabs"* as a priority.
- [Packaging, Storage, and Precautions for Granite Platforms](https://jtlcnc.com/2026/03/08/packaging-storage-and-precautions-for-granite-platforms/): Clean the platform surfaceoughly, free of dust, oil stains, and water marks.
- [Influence of Cutting, Thickness Measurement, and Polishing Processes on Granite Platforms](https://jtlcnc.com/2026/03/08/influence-of-cutting-thickness-measurement-and-polishing-processes-on-granite-platforms/): Unreasonable cutting allowance → Insufficient flatness after polishing, unevthickness in local areas.
- [Causes and Preventive Measures of Granite Platform Deformation](https://jtlcnc.com/2026/03/07/causes-and-preventive-measures-of-granite-platform-deformation/): Temperature Fluctuations: Although granite has a low coefficient of thermal expansion, environmental temperature fluctuations exceeding ±5°C can cause local warping and micro-cracks due to thermal expansion and contraction; direct sunlight or proximity to heat/cold sources create local temperature gradients, accelerating deformation.
- [Cleaning and Maintenance of Granite Measuring Tools](https://jtlcnc.com/2026/03/07/cleaning-and-maintenance-of-granite-measuring-tools/): Applicable tde 00, Grade 0 granite platforms, straight edges, angle blocks, parallels, etc.
- [The most common and practical fixing method for industrial precision granite platforms / plates](https://jtlcnc.com/2026/03/06/the-most-common-and-practical-fixing-method-for-industrial-precision-granite-platforms-plates/): ** Core Principle:** Three pnts define a plane, avoiding distortion caused by four-point loading and affecting flatness.
- [Delivery Acceptance Conditions and Quality Control Standards for Granite Components](https://jtlcnc.com/2026/03/06/delivery-acceptance-conditions-and-quality-control-standards-for-granite-components/): The delivery acceptance of granite components is centered on complete documentation, qualified appearance, precise dimensions, compliant ormance, and stable installation.
- [Why do I apply a layer of oil to the granite base before shipping?](https://jtlcnc.com/2026/03/05/why-do-i-apply-a-layer-of-oil-to-the-granite-base-before-shipping/): Anti-rust & Anti-corrosion Protection: Granite contains trace metal minerals (e.g., feldspar, pyrite).
- [Granite platform bracket](https://jtlcnc.com/2026/03/05/granite-platform-bracket/): Granite Platform Stands are specialized structures used in precision measurement and machining to support granite plates, ensuringir levelness and stability.
- [Preparations before the precision marble test platform](https://jtlcnc.com/2026/03/04/preparations-before-the-precision-marble-test-platform/): Maintain the ambient temperature at 20±2℃ as steadily as possible, direct sunlight, air conditioning, and proximity to heat sources.
- [Granite slab grade: Ensure the accuracy of precision measurement](https://jtlcnc.com/2026/03/04/granite-slab-grade-ensure-the-accuracy-of-precision-measurement/): The precision grade of granite flat plates is the core guarantee for the accuracy of precise measurements.
- [Common misconceptions in granite bed maintenance](https://jtlcnc.com/2026/03/03/common-misconceptions-in-granite-bed-maintenance/): The core of the maintenance of granite bed (precision platform/base) is to prevent acid andali, waterproof, prevent physical damage, prevent temperature difference, and prevent pollution.
- [Granite platform processing requirements](https://jtlcnc.com/2026/03/03/granite-platform-processing-requirements/): Use natural granite with dense structure, uniform grains, no, and no impurities, such as Jinan Qing, Taishan Qing, Fengzhen Black, etc.
- [Granite platform: Precision and stability drive detailed introduction](https://jtlcnc.com/2026/03/02/granite-platform-precision-and-stability-drive-detailed-introduction/): Granite (marble) precision platform is a reference measurement and precision assembly base platform made of granite as the base material, which has been precisely processed and strictly inspected.
- [How to check the straightness of granite straightedge](https://jtlcnc.com/2026/03/02/how-to-check-the-straightness-of-granite-straightedge/): Appl Scenarios: Factory Inspection, Customer Acceptance, High-Precision Tooling Calibration.
- [The influence of humidity on precision granite surface plate](https://jtlcnc.com/2026/03/01/the-influence-of-humidity-on-precision-granite-surface-plate/): The impact of humidity on precision granite slabs / marble platforms, the core is: granite itself is very stable, but humidity can destroy through the environment, supporting structures, and measurement conditions.
- [In precision engineering, functional granite components are the core carriers to achieve sub-micron (≤1μm) long-term stability.](https://jtlcnc.com/2026/02/28/in-precision-engineering-functional-granite-components-are-the-core-carriers-to-achieve-sub-micron-%e2%89%a41%ce%bcm-long-term-stability/): Granite, formed by geological processes over hundreds of millions of years, with internal stresses completely released, has static/dynamic stability unmatched by metals, making it the natural cornerstone of sub-micron systems.
- [The latest news of the global precision granite industry](https://jtlcnc.com/2026/02/28/the-latest-news-of-the-global-precision-granite-industry/)
- [Global Precision Granite Industry Report (2026)](https://jtlcnc.com/2026/02/26/global-precision-granite-industry-report-2026/): # Global Precision Granite Industry Report (2026) ## Executive Summary The global precision granite industry has entered a stage of steady growth, characterized by **high barriers to entry**, **strong specialization**, and a **stable competitive landscape**.
- [The structure of granite](https://jtlcnc.com/2026/02/26/the-structure-of-granite/): Structure refers to the size, shape, and arrangement of mineral grains.
- [Artificial granite and mineral castings: Innovative materials for the machine tool industry](https://jtlcnc.com/2026/02/25/artificial-granite-and-mineral-castings-innovative-materials-for-the-machine-tool-industry/): Artificial granite, also known as resin concrete or resin-based composite material, is primarily made from natural granite as aggregate, combined with epoxy resin as a binder, and supplemented with appropriate fillers and diluents.
- [Application of Artificial Granite in Machine Tool Manufacturing](https://jtlcnc.com/2026/02/25/application-of-artificial-granite-in-machine-tool-manufacturing/): Industrial stone materials.
- [In the vast river of human civilization, stone has always played a silent and solid role.](https://jtlcnc.com/2026/02/24/1903/): In the vast river of human civilization, stone has always played a silent and solid role.
- [Air Bearing Granite Platform: Working Principle and Technical Features Explained](https://jtlcnc.com/2026/02/24/air-bearing-granite-platform-working-principle-and-technical-features-explained/): What are the advantages of marble air-float platforms?
- [Accuracy Requirements for Granite Surface Plates in Aerospace Component Inspection](https://jtlcnc.com/2026/02/23/accuracy-requirements-for-granite-surface-plates-in-aerospace-component-inspection/): Aerospace component inspection imposes extremely stringent accuracy demands on high-precision granite surface plates, as dimensional and geometric errors directly affect assembly fit, structural strength, flight safety and service life of aero-engines, turbine blades, fuselage frames, control components and other critical parts.
- [The marble platform is a precision measuring tool made of marble](https://jtlcnc.com/2026/02/15/the-marble-platform-is-a-precision-measuring-tool-made-of-marble/): The marble platform is a precision measuring tool made of marble, also known as a granite plate.
- [Core Advantages (Why Granite + Guide Rails) - Ultra-high Precision](https://jtlcnc.com/2026/02/14/core-advantages-why-granite-guide-rails-ultra-high-precision/): I. Core Advantages (Why Granite + Guide Rails) - Ultra-high Precision: Granite has excellent thermal stability and minimal deformation, maintaining long-term flatness/straightness (up to 0.001mm level) Please provide the text you would like translated.Rigidity and damping: Heavier than cast iron, with greater damping, it offers better vibration resistance, disturbance resistance, and more stable movement.
- [Marble platform common questions summary](https://jtlcnc.com/2026/02/13/marble-platform-common-questions-summary/): What should be paid attention to when grinding marble?
- [Marble platforms](https://jtlcnc.com/2026/02/13/marble-platforms/): Marble platforms are made from high-quality rock layers underground, which have been naturally aged for hundreds of millions of, making their shape extremely stable.
- [Three-coordinate platform](https://jtlcnc.com/2026/02/12/three-coordinate-platform/): Three-coordinate platform material: high-strength cast iron HT200-300, with a working surface hardness of HB170240, and has been through two manual treatments (manual annealing at 600-700 degrees and natural aging for 2-3 years), precision of this product is stable and has good wear resistance.
- [Marble T-shaped slot flat plate](https://jtlcnc.com/2026/02/12/marble-t-shaped-slot-flat-plate/): Marble T-shaped slot flat plate is made of high-quality "Jinan Blue" after mechanical processing and manual grinding, which has the advantages of high precision, long service life, acid and alkali resistance, and is not easy to deform.
- [The Artisan's Hand at the Pinnacle of Microns: Why Must Top-Tier Granites Rely on Manual Lapping?](https://jtlcnc.com/2026/02/11/the-artisans-hand-at-the-pinnacle-of-microns-why-must-top-tier-granites-rely-on-manual-lapping/): In the realm of precision manufacturing, accuracy is an eternal pursuit.
- [Precision Granite Platforms: Why They're the Measurement Benchmark for High-End Manufacturing?](https://jtlcnc.com/2026/02/11/precision-granite-platforms-why-theyre-the-measurement-benchmark-for-high-end-manufacturing/): In the race for micron- and even nanometer-level precision, any subtle thermal deformation, vibration, or stress can become the key success or failure.
- [The advantages of high-precision reference tools marble platforms](https://jtlcnc.com/2026/02/10/the-advantages-of-high-precision-reference-tools-marble-platforms/): Marble platforms are indispensable workbenches for marking, measuring, riv, and fixture processes, and can also be used as mechanical test benches.
- [Marble High Precision Platform](https://jtlcnc.com/2026/02/10/marble-high-precision-platform/): In the modern field of industrial automation, the demand for precision and speed is increasing day by day.
- [Installation Requirements for Linear Guides on Marble Platforms](https://jtlcnc.com/2026/02/09/installation-requirements-for-linear-guides-on-marble-platforms/): In the process of industrial production, marble platforms are type of high-precision measuring reference surface, and their unique physical characteristics give them significant advantages in the field of precision measurement.
- [Marble platform accuracy grade table](https://jtlcnc.com/2026/02/09/marble-platform-accuracy-grade-table/): The marble platform is made of high-quality granite.
- [Applications of High-Precision Granite Platforms](https://jtlcnc.com/2026/02/08/applications-of-high-precision-granite-platforms/): High-precision granite platforms, leveraging the unique physical properties of natural stone, have become a critical foundation in industries with extreme accuracy demands.
- [Differences Between Indian Granite and Ordinary Stone](https://jtlcnc.com/2026/02/07/differences-between-indian-granite-and-ordinary-stone/)
- [Installation Steps for Granite Surface Plate Base](https://jtlcnc.com/2026/02/06/installation-steps-for-granite-surface-plate-base/): Prepare tools: level gauge, torque wrench, rubber mallet, cleaning cloth, anchor bolts, leveling pads, and anti-vibration pads.
- [Marble platform installation method](https://jtlcnc.com/2026/02/05/marble-platform-installation-method/): The upper surface of the platform is the precision surface (working surface), and the back is the roughly processed surface, which is the supporting surface in with the support.
- [What are the common materials for marble platforms?](https://jtlcnc.com/2026/02/05/what-are-the-common-materials-for-marble-platforms/): MarblePlatform #Zhangqiuhei #Jinanqing #Granite The stones used for marble platforms can be divided into Shandong Jinan Qing stone, Hebei stone, Sesame Black stone, Fujian stone, Dalian Grey stone, etc., according to the producing area.
- [What are the methods for measuring flatness?](https://jtlcnc.com/2026/02/03/what-are-the-methods-for-measuring-flatness/): There are many methods for measuring flatness, here are several common ones:Gap gauge measurement method: The gap gauge is mainly used for the measurement of clearance spacing, and can only be used for rough measurement of flatness.
- [The influence of leveling the granite platform on the flatness after installation](https://jtlcnc.com/2026/02/03/the-influence-of-leveling-the-granite-platform-on-the-flatness-after-installation/): I. Granite platforms are made of granite raw material.
- [Application Characteristics of Granite Platforms in Coordinate Measuring Machines (CMM)](https://jtlcnc.com/2026/02/02/application-characteristics-of-granite-platforms-in-coordinate-measuring-machines-cmm-2/): Granite platforms serve as the core base/working table of Coordinate Measuring Machines, and their application characteristics are centered on the stability and precision retention required for high-precision measurement, perfectly adapting to the stringent accuracy demands of CMMs.
- [Precision granite base](https://jtlcnc.com/2026/02/02/precision-granite-base/): Precision granite base 0.005mm Good material, good product Higher precision, smaller error More accurate measurement, stable operation Precision granite high precision, high measurement, more stable operation Granite precision workbench is used for a variety of applications, including coordinate measuring machines (CMMs, optical inspection systems, and other high-precision measuring tools.
- [How to handle gaps in a granite base?](https://jtlcnc.com/2026/06/03/how-to-handle-gaps-in-a-granite-base/): Gaps in granite bases (platforms) for semiconductors / precision equipment: the core principle is to the crack first, then structurally reinforce, and finally perform precision repositioning and calibration; the use of ordinary marble glue / cement is strictly prohibited.
- [What are the key points of quality control in the finishing stage?](https://jtlcnc.com/2026/06/02/what-are-the-key-points-of-quality-control-in-the-finishing-stage/): Finishing (fine milling, fine grinding, ultra-precision grinding, polishing, hole finishing, and insert assembly) is the core process that determines the final precision, surface quality, and operational stability of the finished product.
- [A marble platform for semiconductor production](https://jtlcnc.com/2026/06/02/a-marble-platform-for-semiconductor-production/): Specialized Marble Platform for Semiconductors (Core: High Stability Anti-static Nanometer Precision)Marble platforms for semiconductors (mostly natural granite / Jinan Green) serve as the core bases for lithography machines, wafer inspection, die bonding / dispensing, and etching / deposition, responsible for "locking in" precision and stability in nanometer-scale processes.
- [How to ensure the quality of the production process?](https://jtlcnc.com/2026/06/01/how-to-ensure-the-quality-of-the-production-process/): Ensuring the quality of the production process for precision granite components centers on establishing a full-process, traceable, and closed-loop quality control system.
- [How to optimize the production process of precision granite components](https://jtlcnc.com/2026/06/01/how-to-optimize-the-production-process-of-precision-granite-components/): Optimize the production process of precision granite components, with the core objective of improving stability, reducing costs shortening lead times, and minimizing scrap while ensuring precision.
- [What level of machining accuracy can the granite base of a five-axis ultra-precision machine tool achieve?](https://jtlcnc.com/2026/05/31/what-level-of-machining-accuracy-can-the-granite-base-of-a-five-axis-ultra-precision-machine-tool-achieve/): Combining industry general standards, machining processes, and the operational requirements of five-axis ultra-precision machine tools, accuracy levels are divided into three major categories: basic geometric accuracy, form and position tolerances, and surface quality.
- [What are the application fields of granite bases for five-axis ultra-precision machine tools?](https://jtlcnc.com/2026/05/30/what-are-the-application-fields-of-granite-bases-for-five-axis-ultra-precision-machine-tools/): Machining ceramic substrates, silicon carbide carriers, wafer chucks, vacuum fixtures, semiconductor molds, and microfluidic chip molds.
- [Granite base for five-axis ultra-precision machine tool](https://jtlcnc.com/2026/05/30/granite-base-for-five-axis-ultra-precision-machine-tool/): Granite base for five-axis ultra-precision machine tools, featuring a core made of natural granite (Jinan Green / Zhangqiu Black) or artificial mineral casting to form an integrated bed body.
- [Bed and Guide Rails: The "Anchor of Stability" for the Precision of Ceramic Milling Machines](https://jtlcnc.com/2026/05/29/bed-and-guide-rails-the-anchor-of-stability-for-the-precision-of-ceramic-milling-machines/): In the micron-level machining of semiconductor ceramic substrates and structural ceramic parts, the machine bed is stable foundation and the guide rails are the lifeline—together they determine the rigidity, vibration resistance, and thermal stability of the engraving and milling machine, directly locking in ±0.01mm precision, and can be called the "anchor" of equipment accuracy.
- [Precision granite is the "stable and heavy skeleton" of large bases / platforms / vibration isolation bases.](https://jtlcnc.com/2026/05/29/precision-granite-is-the-stable-and-heavy-skeleton-of-large-bases-platforms-vibration-isolation-bases/): In high-end fields such as semiconductor equipment, precision machine tools, metrology and testing, and optical instruments, large integrated bases, load-bearing platforms, and vibration-isolating benchmarks are the foundation of overall machine precision.
- [What are the differences in the machining processes for high-hardness ceramics and granite precision instruments?](https://jtlcnc.com/2026/05/28/what-are-the-differences-in-the-machining-processes-for-high-hardness-ceramics-and-granite-precision-instruments/): Combining the physical property differences of the two types of materials, this document analyzes the differences in the machining processes of instrument components from six major dimensions: overall process flow, core operations, cutting and grinding tools, machining parameters, post-processing, and quality control, while also providing a process table.
- [Comparison of the application of high-hardness ceramics and granite in the semiconductor industry](https://jtlcnc.com/2026/05/28/comparison-of-the-application-of-high-hardness-ceramics-and-granite-in-the-semiconductor-industry/): In the semiconductor industry, high-hardness ceramics (Al₂O₃, SiC, Si₃N₄, etc.)
- [Comparison of the advantages and disadvantages of high-hardness ceramic and granite precision instruments](https://jtlcnc.com/2026/05/27/comparison-of-the-advantages-and-disadvantages-of-high-hardness-ceramic-and-granite-precision-instruments/): High-Hardness Ceramics vs.
- [The processing of granite from raw materials to precision components](https://jtlcnc.com/2026/05/27/the-processing-of-granite-from-raw-materials-to-precision-components/): From raw blocks in the mine to precision mechanical components, the core process of granite is "mining → material selection → rough cutting → aging → precision cutting → CNC shaping → grinding and polishing → hole systems / inserts → inspection → protection".
- [What factors affect the price of high-precision granite platforms?](https://jtlcnc.com/2026/05/26/what-factors-affect-the-price-of-high-precision-granite-platforms/): The price of high-precision granite platforms is primarily influenced by seven key factors: material grade, dimensions and thickness, precision grade, customized processing, aging treatment, brand and service, and transportation and installation.
- [Provide customers with professional precision measuring tools](https://jtlcnc.com/2026/05/26/provide-customers-with-professional-precision-measuring-tools/): Building a solid quality foundation for high-end manufacturing with micronnanometer-level precision.
- [Why high-precision granite platforms are the cornerstone of high-end laser equipment](https://jtlcnc.com/2026/05/25/why-high-precision-granite-platforms-are-the-cornerstone-of-high-end-laser-equipment/): The coefficient of thermal expansion is far lower than that of steel and aluminum, resulting in minimal deformation during ambient temperature fluctuations, firmly locking the laser focus and optical path position, and eliminating precision drift.
- [The widespread application of granite in laser equipment](https://jtlcnc.com/2026/05/25/the-widespread-application-of-granite-in-laser-equipment/): With its four core advantages of extremely low thermal expansion coefficient, high rigidity, strong vibration damping, corrosion resistance, granite has become the preferred structural material for laser equipment (especially high-precision and micro-machining types).
- [What scheme should be adopted for the stacking of granite precision platforms?](https://jtlcnc.com/2026/05/24/what-scheme-should-be-adopted-for-the-stacking-of-granite-precision-platforms/): Combining the actual production and usage scenarios of granite square rulers, precision platforms, and components with holes in your workshop, the stacking is divided into three major solutions: stacking, permanent splicing, and multi-layer base assembly.
- [What is the standard fixing method for granite platforms and metal frames?](https://jtlcnc.com/2026/05/23/what-is-the-standard-fixing-method-for-granite-platforms-and-metal-frames/): Standard practices are divided into two categories: precision adjustable bolt fixing (preferred) and pressure plate flexible cushion (secondary rigid deadlocking and direct steel-to-steel contact are strictly prohibited.
- [How does the accuracy grade of granite precision gauges affect their service life?](https://jtlcnc.com/2026/05/23/how-does-the-accuracy-grade-of-granite-precision-gauges-affect-their-service-life/): A brief summary of the core logic: The higher the accuracy grade (000 > 00 > 0 > 1 > 2), the stricter the requirements for material, processing, operating environment, and maintenance.
- [How are the accuracy grades of granite precision gauges classified?](https://jtlcnc.com/2026/05/22/how-are-the-accuracy-grades-of-granite-precision-gauges-classified/): Domestically, the mainstream standard is GB/T 20428-2021 "Rock Surface Plates", while internationally, ISO 8512-2 and DIN 876 are commonly used.
- [What is the service life of granite precision gauges?](https://jtlcnc.com/2026/05/22/what-is-the-service-life-of-granite-precision-gauges/): Constant temperature and humidity metrology room, no impact, standardized use: 20–40 years.
- [Granite precision measuring tool](https://jtlcnc.com/2026/05/21/granite-precision-measuring-tool/): Granite precision measuring tools are high-precision reference measuring instruments made from natural black granite (mainly Jinan Qing and Mount Tai Qing) through precision grinding.
- [Application of granite precision gauges in industry](https://jtlcnc.com/2026/05/21/application-of-granite-precision-gauges-in-industry/): Granite gauges (mainly made of black natural granite such as Jinan Green and Taishan Green, including square rulers, straight edges, square blocks, surface plates, V-blocks, bases, etc.), with their characteristics of high precision, no deformation, no rust, no magnetization, and vibration damping stability, are the core reference tools for modern precision manufacturing, metrological testing, and high-end equipment, covering all industrial fields.
- [How does the surface micro-quality of a granite base affect equipment performance?](https://jtlcnc.com/2026/05/20/how-does-the-surface-micro-quality-of-a-granite-base-affect-equipment-performance/): Microscopic quality mainly includes: roughness, microscopic defects, cleanliness, micro-flatness, material homogeneity, and non-magnetism.
- [Why are granite bases almost universally used for the retrofitting and upgrading of laser equipment?](https://jtlcnc.com/2026/05/20/why-are-granite-bases-almost-universally-used-for-the-retrofitting-and-upgrading-of-laser-equipment/): Why are granite bases almost universally used when retrofitting/upgrading laser equipment?
- [What are the processing difficulties of granite bases for semiconductor equipment?](https://jtlcnc.com/2026/05/19/what-are-the-processing-difficulties-of-granite-bases-for-semiconductor-equipment-2/): The surface micro-quality of semiconductor equipment granite bases, characterized by nanoscale roughness, zero micro-defects, ultra-high cleanliness, non-magnetic and contamination-free properties, and uniform micro-morphology, directly determines wafer yield and long-term equipment stability.
- [Provide some successful cases of special-shaped machining for granite equipment bases](https://jtlcnc.com/2026/05/19/provide-some-successful-cases-of-special-shaped-machining-for-granite-equipment-bases/): High-precision bridge-type CMM base with hollowed-out weight-reducing slots, multiple steps, mounting bosses, guide rail mounting surfaces, embedded threaded inserts, and wiring holes.
- [What are the processing difficulties of granite bases for semiconductor equipment?](https://jtlcnc.com/2026/05/18/what-are-the-processing-difficulties-of-granite-bases-for-semiconductor-equipment/): Granite bases for semiconductor equipment (wafer inspection, optical alignment, vacuum platforms, lithography auxiliary bases, precision motioatforms) are not on the same level as ordinary machine tool bases.
- [How to avoid chipping during the irregular machining of granite equipment bases?](https://jtlcnc.com/2026/05/18/how-to-avoid-chipping-during-the-irregular-machining-of-granite-equipment-bases/): Essence of Granite Chipping: Brittle material, incorrect feed-in method, unsuitable tools, poor corner handling, inadequate cooling, and unreasonable allowances.
- [Special-shaped machining of granite equipment bases](https://jtlcnc.com/2026/05/17/special-shaped-machining-of-granite-equipment-bases/): Characteristics of Irregular Granite Bases: Non-standard shapes, irregular grooves, bosses, cantilevers, cutouts, chamfers, multi-surface perpndicularity, embedded threaded inserts, counterbores, wire holes, weight-reduction slots, irregular guide surfaces.
- [What are the difficulties in machining irregular shapes for granite equipment bases?](https://jtlcnc.com/2026/05/17/what-are-the-difficulties-in-machining-irregular-shapes-for-granite-equipment-bases/): Combining Jinan Qing and Indian stone for machine tool bases, CMM bases, semiconductor equipment frames, cantilevers, hollowing, weight-reductislots, bevels, and non-standard parts with irregular guides, this document compiles the most critical and problematic difficulties, categorized by stone properties, structure, machining, precision, stresssembly, and cost for clarity and ease of understanding.
- [What is the production process of granite components?](https://jtlcnc.com/2026/05/16/what-is-the-production-process-of-granite-components/): Overall Process: Material Selection → Block Cutting → Rough Machining → Heat Treatment Aging → Precision Machining → Precision Grinding → Inspection → Anti-corrosion Protection → Packaging and Shipping.
- [How is the specific operation of constant-temperature heat aging treatment for granite components performed?](https://jtlcnc.com/2026/05/16/how-is-the-specific-operation-of-constant-temperature-heat-aging-treatment-for-granite-components-performed/): Core Purpose of Granite Heat Aging: Rapidly release internal crystalline stress and cutting/machining stress to avoid deformation, warping, and loss of precision during subsequent grinding or use.
- [What are the precautions for constant temperature heat treatment of granite components?](https://jtlcnc.com/2026/05/15/what-are-the-precautions-for-constant-temperature-heat-treatment-of-granite-components/): Based on processing experience with Jinan reen, Zhangqiu Black, and Indian stone, this guide covers the entire process from loading, heating, holding, cooling, post-processing, and prohibitions, highlighting the most common pitfall production.
- [Granite component business opportunities](https://jtlcnc.com/2026/05/15/granite-component-business-opportunities/): Core Applications of Granite Components: Precision machine bases, CMM/Video Measuring Machine bases, inspection platforms, guides, gauges, semiconductor equipment bases, new energy equipment frames, optical instrument supports, natural Jinan Green, Zhangqiu Black, Indian Black, etc., Grade 00/000 high precision, wear-resistant, rust-free, high stability, replacing cast iron, cast aluminum, and steel parts, market rigid demand continues to rise.
- [In-depth Analysis of Key Advantages of Granite for CMM Platforms / Bases](https://jtlcnc.com/2026/05/14/in-depth-analysis-of-key-advantages-of-granite-for-cmm-platforms-bases/): Natural granite undergoes natural geological aging over hundreds of millions of years, completely releasing internal stress.
- [Granite inspection platforms are commonly used reference instruments in the field of industrial precision measurement and inspection.](https://jtlcnc.com/2026/05/14/granite-inspection-platforms-are-commonly-used-reference-instruments-in-the-field-of-industrial-precision-measurement-and-inspection/): Granite inspection platforms are indeed one of the most core and commonly used reference instruments in the fields of industrial measurement and precision inspection; they can be described as"cornerstone of precision measurement."
- [Granite Precision Components: Selection Machining Installation Maintenance](https://jtlcnc.com/2026/05/13/granite-precision-components-selection-machining-installation-maintenance/): Jinan Black: Best cost-performance ratio, high density, compact structure, minimal deformation; the first choice for general precision platforms, CMM bases, and inspection plates; largest industrial usage volume.
- [Application of granite in precision instruments](https://jtlcnc.com/2026/05/13/application-of-granite-in-precision-instruments/): Relying on its unique physical properties, granite has become a key material in the field of precision instrument manufacturing, playing a core role especially in high-precision measurement and machining equipment.
- [Application of Precision Granite in Ultra-precision Machine Tools](https://jtlcnc.com/2026/05/12/application-of-precision-granite-in-ultra-precision-machine-tools/): Precision granite (commonly known as granite) is the core structural material for ultra-precision machine tools.
- [Precision granite serves as a benchmark support for high-end equipment](https://jtlcnc.com/2026/05/12/precision-granite-serves-as-a-benchmark-support-for-high-end-equipment/): Precision granite serves as the benchmark support substrate for high-end precision equipment, replacing traditional cast iron, cast steel, and aluminum alloys.
- [Precision granite component transportation protection device](https://jtlcnc.com/2026/05/11/precision-granite-component-transportation-protection-device/): Precision Granite Component Transport Protection Device, the core of which is adjustable multi-level cushioning precise positioning, preventing chipping, corner breakage, or loss of precision caused by vibration, collision, and friction.
- [Precision Granite Components](https://jtlcnc.com/2026/05/11/precision-granite-components/): Precision granite components refer to components made of high-quality granite through precise processing and manufacturing, which are used in various high-precision measurement, inspection and positioning applications.
- [What level of machining accuracy can be achieved for precision granite machine parts?](https://jtlcnc.com/2026/05/10/what-level-of-machining-accuracy-can-be-achieved-for-precision-granite-machine-parts/): The machining accuracy of granite precision components can reach up to Grade 000, with flatness ≤0.5μm/m and dimensional accuracy ±1μm, classified as ultra-precision grade.
- [What are the machining processes for precision granite components?](https://jtlcnc.com/2026/05/10/what-are-the-machining-processes-for-precision-granite-components/): The core of machining precision granite components lies in an ultra-precision control process spanning "from raw material screening to closed-loop precision," requiring strict control over parameters, equipment, and environment at every stage to ultimately achieve micron and even sub-micron level accuracy.
- [What are the uses of Indian stone?](https://jtlcnc.com/2026/05/09/what-are-the-uses-of-indian-stone/): Specifically compiled for granite platforms, gauges, equipment bases, and material selection for foreign trade, categorized into four major types: industrial precision, machinery equipment, architectural decoration, and engineering custom shapes.
- [Where is the origin of Indian stone?](https://jtlcnc.com/2026/05/09/where-is-the-origin-of-indian-stone/): Indian Stone (Gabbro for Precision Platforms / Indian Black) is primarily sourced from the southern Indian states of Karnatakdhra Pradesh, with a small amount coming from Tamil Nadu.
- [What is the main component of Indian stone?](https://jtlcnc.com/2026/05/08/what-is-the-main-component-of-indian-stone/): The Indian Stone used in the industry for marble/granite inspection platforms and CMM bases is essentially a fine-grained gabbro to diorite, often classified as a dark-colored basic intrusive rock.
- [Differences between Jinan Green, Indian Stone, Zhangqiu Stone, and Northeast Stone](https://jtlcnc.com/2026/05/08/differences-between-jinan-green-indian-stone-zhangqiu-stone-and-northeast-stone/): The core differences among these four types of stone lie in their origin, appearance, density/stablity, price, and application: Jinan Green offers the highest precision but is scarce and expensive; Indian Stone performs similarly to Jinan Green but is costly due to importation; ZhStone offers good value for money but fades easily when dyed; Northeast Stone has average stability and is the cheapest.
- [💎 Why do lab experts love Jinan Qing marble platforms? The secret weapon for precision measurement!](https://jtlcnc.com/2026/05/07/%f0%9f%92%8e-why-do-lab-experts-love-jinan-qing-marble-platforms-the-secret-weapon-for-precision-measurement/): → Extremely low coefficient of thermal expansion (4.61×10⁻⁶/℃), almost no deformation under temperature differences, say goodbye to measurement errors!
- [Why has the granite platform become the benchmark platform for high-end manufacturing?](https://jtlcnc.com/2026/05/07/why-has-the-granite-platform-become-the-benchmark-platform-for-high-end-manufacturing/): In the race for precision at the micron and even nanometer level, any minute thermal deformation, vibration, or stress can become the key determinant of success or failure.
- [Granite Surface Plate vs. Cast Iron Surface Plate: Which Material Improves Laboratory Measurement Accuracy More?](https://jtlcnc.com/2026/05/06/granite-surface-plate-vs-cast-iron-surface-plate-which-material-improves-laboratory-measurement-accuracy-more/): Granite Surface Plate vs. Cast Iron Surface Plate: Which is Better for Laboratory High-Precision Measurement?
- [High precision granite platform](https://jtlcnc.com/2026/05/06/high-precision-granite-platform/): I. What is a High Precision Granite Surface Plate?
- [We can drill those holes on the precision granite.](https://jtlcnc.com/2026/05/05/we-can-drill-those-holes-on-the-precision-granite/): Metric threaded holes such as M6, M8, M10, M116, used for mounting fixtures, brackets, gauge supports, and tooling plates.
- [Which color of granite is the best?](https://jtlcnc.com/2026/05/04/which-color-of-granite-is-the-best/): "There is no absolute standard for the 'best color'; it depends on whether it is for precision use (measurement / machine tools / CMM) or decorative aesthetics.
- [Features of the granite base of a coordinate measuring machine](https://jtlcnc.com/2026/05/03/features-of-the-granite-base-of-a-coordinate-measuring-machine/): Granite has an extremely low coefficient of thermal expansion, is minimally affected by workshop temperature changes, and is resistant to thermal expansion and contraction deformation.
- [Does the color of granite affect the accuracy of a coordinate measuring machine?](https://jtlcnc.com/2026/05/02/does-the-color-of-granite-affect-the-accuracy-of-a-coordinate-measuring-machine/): Does the color of granite affect the accuracy of a CMM?
- [Does the color of granite affect its physical properties?](https://jtlcnc.com/2026/05/01/does-the-color-of-granite-affect-its-physical-properties/): Does the color of granite affect its physical properties?
- [How to maintain the high precision of granite countertops](https://jtlcnc.com/2026/05/01/how-to-maintain-the-high-precision-of-granite-countertops/): Four-point or six-point support, three-point positioning with the rest auxiliary; avoid hard contact to generate internal stress and prevent workbench warping and deformation.
- [Why does granite have various appearances and different hardness levels?](https://jtlcnc.com/2026/04/30/why-does-granite-have-various-appearances-and-different-hardness-levels/): Why Do Granite's Appearance and Hardness Vary?
- [How to choose a suitable granite vibration isolation platform?](https://jtlcnc.com/2026/04/30/how-to-choose-a-suitable-granite-vibration-isolation-platform/): The core logic of selecting a platform is to first clarify equipment requirements, then match materials, precisio, structure, and supporting solutions, avoiding the pitfalls of "wasting money on excessive precision" or "being unable to use it due to insufficient precision."
- [What are the application fields of granite vibration isolation platforms?](https://jtlcnc.com/2026/04/29/what-are-the-application-fields-of-granite-vibration-isolation-platforms/): Lithography Machine Bases, Wafer Cutting/Dicing Platforms, Chip Inspection Equipment, Semiconductor Packaging Equipment, Micro/Nano Machining benches; non-magnetic and low thermal deformation, suitable for nanoscale processes.
- [What is the vibration damping principle of a granite vibration isolation platform?](https://jtlcnc.com/2026/04/29/what-is-the-vibration-damping-principle-of-a-granite-vibration-isolation-platform/): Granite relies on four major characteristics—natural dense mineral structure, high internal damping, self-weight inertia, and low elastic deformation—to absorb, consume, and block micr-vibrations, weakening vibration transmission at the source.
- [Application Value of Granite Vibration Isolation Platforms](https://jtlcnc.com/2026/04/28/application-value-of-granite-vibration-isolation-platforms/): Granite vibration isolation platforms are no lerely simple "bearing bases" in traditional industry; they are core critical components determining precision, stability, and product yield in high-end precision manufacturing and inspection processes.
- [Granite opens a new chapter in semiconductor and precision laser manufacturing](https://jtlcnc.com/2026/04/28/granite-opens-a-new-chapter-in-semiconductor-and-precision-laser-manufacturing/): In the era of extreme manufacturing charemiconductor nanofabrication and ultrafast laser precision processing, natural granite has transcended its role as a traditional building material to become the "foundation of precision" for high-enipment.
- [Application value of granite V-blocks](https://jtlcnc.com/2026/04/27/application-value-of-granite-v-blocks/): Granite V-blocks (also known as granite V-blocks) are core reference tools for precision manufng and metrology inspection.
- [Packaging and Transportation of Granite Platforms](https://jtlcnc.com/2026/04/27/packaging-and-transportation-of-granite-platforms/): Granite is brittle; precision surfaces are susceptible to bumps, heavy pressurend scratches.
- [Granite stone surface processing requirements](https://jtlcnc.com/2026/04/26/granite-stone-surface-processing-requirements/): Adopts Jinan Green high-density granite, with working surface processed by constant-temperature precision grinding.
- [How to choose the right oil to apply to a granite base?](https://jtlcnc.com/2026/04/25/how-to-choose-the-right-oil-to-apply-to-a-granite-base/): When selecting oil to coat a granite base, the core principles are "protection firs, no damage, easy cleaning."
- [Correct method for oiling a granite base](https://jtlcnc.com/2026/04/25/correct-method-for-oiling-a-granite-base/): The core of oiling is "thin, uniform, no omissions, no residue."
- [Why is high-quality precision granite the preferred material for the worktable of a high-precision coordinate measuring machine?](https://jtlcnc.com/2026/04/24/why-is-high-quality-precision-granite-the-preferred-material-for-the-worktable-of-a-high-precision-coordinate-measuring-machine/): Natural granite has undergone natural aging over hundreds of millions of years, completely releasing internal stresses.
- [How to choose a suitable laser interferometer to inspect the accuracy of a granite platform?](https://jtlcnc.com/2026/04/24/how-to-choose-a-suitable-laser-interferometer-to-inspect-the-accuracy-of-a-granite-platform/): Select based on 5 core dimensions: platform accuracy grade, table size, workshop environment, inspection items, and national standard traceability.
- [The Journey of Precision Granite Platforms from Quarry to Precision Workshop](https://jtlcnc.com/2026/04/23/the-journey-of-precision-granite-platforms-from-quarry-to-precision-workshop/)
- [What is the principle of using a laser interferometer to measure the accuracy of a granite platform?](https://jtlcnc.com/2026/04/23/what-is-the-principle-of-using-a-laser-interferometer-to-measure-the-accuracy-of-a-granite-platform/): Utilizing the extremely high stability of laser wavelength, it precisely calculates the deviation of height undulations at every point on the platform through changes in interference fringes caused by optical path differences, and three-dimensionally fits the true flatness.
- [How can the accuracy of a granite platform be inspected?](https://jtlcnc.com/2026/04/22/how-can-the-accuracy-of-a-granite-platform-be-inspected/): In accordance with JJG117-2013 Plate Verification Regulations, common testing methods for precision granite platforms are divided into: Traditional Level Method, Autocollimator Method, Laser Interferometry Method, Grid Point Testing, Optical Flat Interference Method, and CMM Comprehensive Testing.
- [Precision Granite Manufacturing Solutions](https://jtlcnc.com/2026/04/22/precision-granite-manufacturing-solutions/): Covers the full closed-loop process from material selection → aging → CNC machining → constant temperature manual precion lapping → structural customization → precision verification → installation and after-sales → long-term stability.
- [Common Causes and Solutions for Decreased Precision of Granite Platforms](https://jtlcnc.com/2026/04/21/common-causes-and-solutions-for-decreased-precision-of-granite-platforms/): Granite (Marbrm precision drift, flatness exceeding tolerance, is fundamentally categorized into six major types: environment, installation support, usage damage, cleaning maintenance, stress aging, and metrological calibrubleshooting in order of priority can quickly restore precision.
- [How is the machining accuracy of granite guides and machine tool bases guaranteed?](https://jtlcnc.com/2026/04/21/how-is-the-machining-accuracy-of-granite-guides-and-machine-tool-bases-guaranteed/): Natl granite is inherently stable and deformation-free, but achieving ultra-precision grades (00/000) for guide rail straightness, flatness, parallelism, perpendicd positional tolerance relies entirely on a rigorous, closed-loop process of machining, aging, and inspection.
- [Selection of Granite Ways and Machine Tool Beds in Precision Engineering](https://jtlcnc.com/2026/04/20/selection-of-granite-ways-and-machine-tool-beds-in-precision-engineering/): In preciachine tools, CMMs, grinders, optical equipment, and semiconductor equipment, the selection of granite vs. cast iron vs.
- [The indispensable role of precision granite in high-precision metrology](https://jtlcnc.com/2026/04/20/the-indispensable-role-of-precision-granite-in-high-precision-metrology/): Precision granite serves as the physical cornerstone of high-precision metrology.
- [How to distinguish high-quality black granite from ordinary granite for precision measuring tools](https://jtlcnc.com/2026/04/19/how-to-distinguish-high-quality-black-granite-from-ordinary-granite-for-precision-measuring-tools/): Mnemonic: The blacker, finer, and denser, the more suitable for precision; the moreled, coarser, and shinier, the less suitable for precision.
- [Why do semiconductor equipment rely on granite bases?](https://jtlcnc.com/2026/04/19/why-do-semiconductor-equipment-rely-on-granite-bases/): Semiconductor manufacturing is a game of nanoscale precision, and granite is the only cost-effective structural material that simultaneously meets the requirements of ultra-stability, ultra-flatness, vibration resistance, low thermal expansion, and long-term dimensional stability.
- [The Test of Precision for Large Granite Bases in Aerospace Manufacturing](https://jtlcnc.com/2026/04/18/the-test-of-precision-for-large-granite-bases-in-aerospace-manufacturing/): In aerospace manufacturing, large granite bases (platforms) serve as the core reference for ultra-precision machining,measurement, and assembly.
- [Why is the demand for integrated machined granite increasing now?](https://jtlcnc.com/2026/04/18/why-is-the-demand-for-integrated-machined-granite-increasing-now/): The demand for monolithic machined granite (especially machine tool beds and platform components) is growing rapidly, essentially reflecting the upgrading of requirements for "extreme precision and stability" in high-end manufacturing, which is the result of the combined effects of the material properties of granite, breakthroughs in machining technology, and cost advantages.
- [Granite precision platform and stand, meeting high precision requirements~~ Granite precision platform](https://jtlcnc.com/2026/04/17/granite-precision-platform-and-stand-meeting-high-precision-requirements-granite-precision-platform/): Material Characteristics: Precision granite platforms are typically made from high-quality natural granite materials such as "Jinan Black," with main mineral components includpyroxene and plagioclase.
- [Why is a marble platform the preferred choice for precision motion stage bases?](https://jtlcnc.com/2026/04/17/why-is-a-marble-platform-the-preferred-choice-for-precision-motion-stage-bases/): In high-end fields such as precision manufacturing, semiconductor inspection, and laser processing, the precision of precision motion platforms directly determines product quality.
- [Air Bearing Platforms: The Core Secret to Long-Term Stability at the Sub-Nanometer Precision Level](https://jtlcnc.com/2026/04/15/air-bearing-platforms-the-core-secret-to-long-term-stability-at-the-sub-nanometer-precision-level/): In high-end fields such as semiconductors, precision inspection, and micro/nano manufacturing, sub-nanometer precision is a core requirement for equipment operation, while the long-term stability of ision is the key determinant of product yield and equipment service life.
- [Gantry Dual-Drive Linear Motor: The Dual Core of Precision and Efficiency in High-End Manufacturing](https://jtlcnc.com/2026/04/15/gantry-dual-drive-linear-motor-the-dual-core-of-precision-and-efficiency-in-high-end-manufacturing/): In the field of high-end precision manufacturing, the motion accuracy and stability of gantry structures directly determine product yield.
- [Granite Platform Selection Guide](https://jtlcnc.com/2026/04/14/granite-platform-selection-guide/): **Core RequiremBear immense weight, withstand impact, and possess extreme long-term stability.
- [Don't miss out on the unique charm of granite precision platforms](https://jtlcnc.com/2026/04/14/dont-miss-out-on-the-unique-charm-of-granite-precision-platforms/): The core appeal of the granite precision platform lies in the ultimate fusion of material genes forged by hundreds of millions of years of geological processes and modern precision craftsmanship.
- [How are the accuracy grades of granite measuring tools classified?](https://jtlcnc.com/2026/04/13/how-are-the-accuracy-grades-of-granite-measuring-tools-classified/): Classification of Accuracy Grades for Granite (Rock) Measuring Tools, based primarily on National Standard GB/T 20428-2006 "Rock Slabs" (mainstream grades are Grade 000, 00, 0, and 1; the old standard GB 4987-85 is the same).
- [Application of Granite in Next-Generation Precision Machine Tool Bases](https://jtlcnc.com/2026/04/13/application-of-granite-in-next-generation-precision-machine-tool-bases/): In next-generation nano/sub-micron precision machine tools, granite (especially high-density varietiee Jinan Blue) is transitioning from an "optional component" to a core benchmark material, comprehensively replacing traditional cast iron and steel.
- [Material Selection and Global Standards for High-end Machine Tool Bases](https://jtlcnc.com/2026/04/11/material-selection-and-global-standards-for-high-end-machine-tool-bases/): Core Selection Logic for High-End Machine Tool Bases (Beds): For heavy cutting,ct gray iron / ductile iron; for ultra-precision, select natural granite; for lightweighting / high damping, select mineral casting (artificial granite).
- [How to Choose the Right Granite Countertop for Your Laboratory](https://jtlcnc.com/2026/04/11/how-to-choose-the-right-granite-countertop-for-your-laboratory/): When selecting laboratory granite countertops, the key is to base decisions on four major dimensions: experiment type, precision requirements, chemical environment, load-bearing capacity, and installation conditions.
- [How to eliminate internal stresses in precision metal parts through different heat treatment processes?](https://jtlcnc.com/2026/04/10/how-to-eliminate-internal-stresses-in-precision-metal-parts-through-different-heat-treatment-processes/): To eliminate internal stresses in precision metal parts, the core approach is: heat the material to "loosen" the atoms, then cool it slowly to releasetress, while minimizing deformation and preserving hardness and strength.
- [How to distinguish the authenticity of Jinan Green Marble](https://jtlcnc.com/2026/04/10/how-to-distinguish-the-authenticity-of-jinan-green-marble/): The authenticity identification of inan Qing (a type of gabbroic granite) centers on appearance texture, density and weight, water absorption rate, tapping sound, and professional testing.
- [How to extend the lifespan of granite countertops through proper maintenance](https://jtlcnc.com/2026/04/09/how-to-extend-the-lifespan-of-granite-countertops-through-proper-maintenance/): Properly maintaining granite countertops involves effective sealing, gentle daily cleaning, avoiding physical and chemical damage, and regular maintenance, which can effectextend their lifespan to several decades.
- [Precision laser cutting system and motion platform](https://jtlcnc.com/2026/04/09/precision-laser-cutting-system-and-motion-platform/): A precision laser cutting system is a high-end manufacturing equipment integrating laser optics, precision mechanics, secontrol, and computer technology.
- [Data monitoring and analysis of the granite base of a Chinese coordinate measuring machine](https://jtlcnc.com/2026/08/08/data-monitoring-and-analysis-of-the-granite-base-of-a-chinese-coordinate-measuring-machine/): Monitoring cycle: Short-term continuous 48h thermal deformation monitoring, medium-to-long-term 12-month accuracy drift tracking.
- [Six major advantages of using granite for high-precision machine bases](https://jtlcnc.com/2026/08/07/six-major-advantages-of-using-granite-for-high-precision-machine-bases/): The linear expansion coefficient of high-density Jinan blue granite is only 4.5~6×10⁻⁶/℃, about half that of cast iron (11~13×10⁻⁶/℃), and its thermal diffusion speed is much slower than metals, responding sluggishly to temperature changes.
- [Comparison of granite and cast iron bases in vibration control](https://jtlcnc.com/2026/08/06/comparison-of-granite-and-cast-iron-bases-in-vibration-control/): Elastic Modulus Approx.
- [Applications of granite machine tool bases](https://jtlcnc.com/2026/08/06/applications-of-granite-machine-tool-bases/): Relying on six core characteristics—low linear expansion, strong vibration absorption, non-magnetic, rust-proof, zero internal stress, and high flatness—granite machine tool bases are exclusively used for micron/nanometer-level high-precision equipment.
- [Granite precision inspection platform with stable constant temperature accuracy](https://jtlcnc.com/2026/08/05/granite-precision-inspection-platform-with-stable-constant-temperature-accuracy-2/): Utilizing high-density natural Jinan Blue granite, which has undergone billions of years of geological aging to completely release internal stress, resulting in isotropic material uniformity.
- [Granite precision inspection platform with stable constant temperature accuracy](https://jtlcnc.com/2026/08/05/granite-precision-inspection-platform-with-stable-constant-temperature-accuracy/): Cast iron platforms offer superior static load-bearing and heavy-duty crushing capacity, but high-precision inspection and metrology demand temperature stability, low deformation, zero stress, vibration damping, rust resistance, and long-term accuracy maintenance.
- [What are the requirements for the flatness of the base for nanometer-level positioning accuracy?](https://jtlcnc.com/2026/08/04/what-are-the-requirements-for-the-flatness-of-the-base-for-nanometer-level-positioning-accuracy/): Applicable Objects: Linear motor platforms, semiconductor inspection equipment, optical alignment platforms, nano-displacement stages, CMM core bases; Mainstream Material: Jinan Blue Granite.
- [Nanometer-level positioning accuracy](https://jtlcnc.com/2026/08/03/nanometer-level-positioning-accuracy/): Nanometer-level positioning accuracy: The drive determines the upper limit, while the base secures the bottom line.
- [Precision manufacturing's accuracy challenges for motion platforms](https://jtlcnc.com/2026/08/03/precision-manufacturings-accuracy-challenges-for-motion-platforms/): Integrating marble linear motor platforms, granite precision guide rails, and nanometer-scale positioning scenarios (semiconductor inspection, optical processing, CMM, micro-assembly, laser precision machining), systematically review core challenges, suitable for technical blog posts, technical white papers, and foreign trade technical presentation materials.
- [The king of stable precision in precision manufacturing: marble platforms and linear motors](https://jtlcnc.com/2026/08/02/the-king-of-stable-precision-in-precision-manufacturing-marble-platforms-and-linear-motors/): The positioning accuracy requirements for semiconductor metrology, micro-nano laser processing, optical inspection, and high-end automation equipment continue to descend to the sub-micron and nanometer levels.
- [Precision rolled to the nanometer level, from foundation to intelligence: The evolutionary path of the marble linear motor](https://jtlcnc.com/2026/08/01/precision-rolled-to-the-nanometer-level-from-foundation-to-intelligence-the-evolutionary-path-of-the-marble-linear-motor/): Semiconductor lithography, laser micro-nano machining, high-precision optical inspection, third-generation semiconductor metrology… High-end manufacturing is continuously advancing toward the micro and nano scales.
- [What issues should be noted during the installation and maintenance of granite machine tool ways?](https://jtlcnc.com/2026/07/31/what-issues-should-be-noted-during-the-installation-and-maintenance-of-granite-machine-tool-ways/): Applicable to: Jinan Qing Granite Guides, Integrated Granite Bed Guides, Air Bearing / Hydrostatic / Linear Guide Installation Bases; Granite has high brittleness and unique thermal characteristics, and its installation and maintenance logic differs significantly from cast iron guides.
- [Applications of high-precision granite machine tool ways](https://jtlcnc.com/2026/07/31/applications-of-high-precision-granite-machine-tool-ways/): Commonly referred to in the industry as "granite guides", the mainstream raw material is Jinan Qinghui long granite (Grade 00/000), generally paired with air bearing hydrostatic, liquid hydrostatic, or linear motor modules, targeting micron/sub-micron and nanometer-level ultra-precision equipment; core advantages: extremely low coefficient of linear expansion, high damping vibration absorption, no internal stress, corrosion resistance, and long-term stable precision.
- [High-quality granite inspection platform: high-strength, high-stability precision measurement reference equipment](https://jtlcnc.com/2026/07/30/high-quality-granite-inspection-platform-high-strength-high-stability-precision-measurement-reference-equipment/): In high-precision industrial fields such as machining, mold manufacturing, precision inspection, and laboratory metrology, the accuracy and stability of the measurement datum directly determine the processing precision and yield rate of products.
- [Do not replace manual grinding with machines; 00-level precision is achieved](https://jtlcnc.com/2026/07/29/do-not-replace-manual-grinding-with-machines-00-level-precision-is-achieved/): CNC grinders and surface grinding equipment can complete the basic surface processing of granite platforms, but the machine tool's own guide rail errors and inherent motion trajectory deviations cannot be completely eliminated; relying solely on mechanical grinding will leave periodic machining patterns on the platform's microscopic surface, making it difficult to meet the continuous contact precision of Grade 00.
- [Technical deconstruction of the 00-grade granite inspection platform](https://jtlcnc.com/2026/07/28/technical-deconstruction-of-the-00-grade-granite-inspection-platform/): Prioritize the use of Jinan Green and Zhangqiu Green Huichang stone; prohibit ordinary marble, multicolored granite, and artificial granite.
- [Precision grade of grooved marble platform](https://jtlcnc.com/2026/07/27/precision-grade-of-grooved-marble-platform/): Grooving ≠ direct downgrade, but grooving processing introduces precision risks; the final precision grade is determined by the data from re-grinding and re-testing after all grooving and tapping are completed.
- [How to choose a precision granite surface plate](https://jtlcnc.com/2026/07/25/how-to-choose-a-precision-granite-surface-plate/): Targeting scenarios such as guide rail inspection, multi-axis slide table bases, linear motor platforms, and vision/laser inspection equipment, distinguishing between standard inspection plates and integrated equipment bases, suitable for direct client presentations and technical proposals.
- [What are the specific uses of a Grade 00 marble platform?](https://jtlcnc.com/2026/07/25/what-are-the-specific-uses-of-a-grade-00-marble-platform/): According to the national standard GB/T 20428 for rock slabs, Grade 00 belongs to the precision metrology grade platform, second only to the Grade 000 reference platform.
- [The accuracy of the guide rail inspection marble platform is divided into Grade 1, Grade 0, and Grade 00](https://jtlcnc.com/2026/07/24/the-accuracy-of-the-guide-rail-inspection-marble-platform-is-divided-into-grade-1-grade-0-and-grade-00/): Detailed Explanation of Precision Grades for Marble Platforms Used in Guide Rail Inspection (National Standard GB/T0428-2006 "Stone Surface Plates") Complete Grade Sequence: Grade 000 > Grade 00 > Grade 0 > Grade 1, with decreasing step by step and flatness tolerance doubling; core reference for selecting linear guide rails, precision sliding tables, and linear motor module platforms.
- [Advantages of marble linear motor module platform in inspection equipment](https://jtlcnc.com/2026/07/24/advantages-of-marble-linear-motor-module-platform-in-inspection-equipment/): Marble base direct drive linear motor integrated guide rail, distinguishing it from aluminum profile sliding tables and cast iron screw modules; widely used in optical scanning, 3D profile measurement, wafer inspection, high-precision visual dimension inspection, laser interferometry inspection, etc.
- [Multi-axis slide table &amp; marble platform break through high-precision detection](https://jtlcnc.com/2026/07/23/multi-axis-slide-table-marble-platform-break-through-high-precision-detection/): Long-term Time-dependent Deformation: Internal stresses in ordinary metal components are slowly released, causing equipment accuracy to deteriorate over time.
- [The marble linear motor base stands on micron-level positioning.](https://jtlcnc.com/2026/07/23/the-marble-linear-motor-base-stands-on-micron-level-positioning/): As high-speed, high-response direct-drive transmission components, linear motors are widely used in wafer inspection, laser micromachining, optical calibration, precision measurement, and other fields.
- [The ultimate benchmark for marble linear motors](https://jtlcnc.com/2026/07/21/the-ultimate-benchmark-for-marble-linear-motors/): Marble (granite) is the ultimate carrier for the trinity of geometric, thermal, and vibration references of linear motor platforms.
- [How to ensure the flatness of the marble base?](https://jtlcnc.com/2026/07/20/how-to-ensure-the-flatness-of-the-marble-base/): Marble flatness is divided into two stages: factory grinding and processing flatness (00/0/1 grade standards), and long-term flatness maintained after installation and use.
- [Complete analysis of XYZ three-axis module and marble base synergy](https://jtlcnc.com/2026/07/20/complete-analysis-of-xyz-three-axis-module-and-marble-base-synergy/): The XYZ three-axis module is responsible for linear interpolation, positioning, and high-speed motion in 3D space; the marble (Jinan Blue Granite) base provides zero drift, high damping, and high geometric reference.
- [Technical requirements for the base of a coordinate measuring machine](https://jtlcnc.com/2026/07/19/technical-requirements-for-the-base-of-a-coordinate-measuring-machine/): Milling and grinding of guide rail mounting slots, T-slots, water-cooled embedded channels, locating counterbores, and precision threaded holes in a single process; the entire machine shares a single granite reference base to eliminate cumulative assembly errors of multiple parts.
- [Poor accuracy, short lifespan? Have you chosen the right surface treatment for your CMM / testing machine granite base?](https://jtlcnc.com/2026/07/18/poor-accuracy-short-lifespan-have-you-chosen-the-right-surface-treatment-for-your-cmm-testing-machine-granite-base/): Many customers purchase low-priced granite bases, focusing only on the stone's appearance while ignoring grinding grades, pore sealing, and protective treatments.
- [What are the advantages of semiconductor lithography machine base solutions?](https://jtlcnc.com/2026/07/17/what-are-the-advantages-of-semiconductor-lithography-machine-base-solutions/): The dedicated semiconductor granite has an extremely low coefficient of thermal expansion, only 1/4 of steel and 1/ of aluminum alloy.
- [Granite semiconductor lithography machine base full solution](https://jtlcnc.com/2026/07/17/granite-semiconductor-lithography-machine-base-full-solution/): This solution is designed for EUV extreme ultraviolet lithography machines, ArF immersion lithography machines, and KrF lithography equipment.
- [Granite for semiconductor equipment: thermal stability and precision](https://jtlcnc.com/2026/07/16/granite-for-semiconductor-equipment-thermal-stability-and-precision/): Semiconductor lithography, wafer inspection, probe stations, die bonders, and AOI optical equipment require a long-term stable reference at the nanometer scale.
- [Why does the semiconductor industry rely heavily on precision granite bases?](https://jtlcnc.com/2026/07/16/why-does-the-semiconductor-industry-rely-heavily-on-precision-granite-bases/): Advanced semiconductor processes (7nm/3nm/EUV lithography, wafer inspection, probe stations, optical metrology) require nanometer-level positioning accuracy.
- [How to ensure the flatness of a marble countertop?](https://jtlcnc.com/2026/07/15/how-to-ensure-the-flatness-of-a-marble-countertop/): Chip equipment uses precision black granite (commonly known in the industry as marble platforms), divided into four major stages: production and processing, aging treatment, grinding and inspection, and installation and use.
- [Granite Application Selection and Maintenance Guide](https://jtlcnc.com/2026/07/14/granite-application-selection-and-maintenance-guide/): II. Complete Selection Standards for Granite (Separated by Home vs.
- [Complete characteristics of granite](https://jtlcnc.com/2026/07/14/complete-characteristics-of-granite/): SiO₂ content 65%–78%, high-silica acidic rock; Al₂O₃ 12%–17%, rich in potassium and sodium; ferromagnesian dark minerals <10%, overall light-colored rock system.
- [What are the specific application scenarios of marble countertops in chip manufacturing?](https://jtlcnc.com/2026/07/12/what-are-the-specific-application-scenarios-of-marble-countertops-in-chip-manufacturing/): Note: The "marble countertops" mentioned in the semiconductor industry are all black precision granite.
- [Excellent application of marble countertops in chip manufacturing](https://jtlcnc.com/2026/07/11/excellent-application-of-marble-countertops-in-chip-manufacturing/): I. Distinction First: The semiconductor industry does not use ordinary marble, but black precision granite.
- [Applications of granite precision bases in semiconductors](https://jtlcnc.com/2026/07/11/applications-of-granite-precision-bases-in-semiconductors/): Semiconductor manufacturing processes reach nanometer-level precision, requiring extreme standards for thermal deformation, vibration, flatness, and cleanroom compatibility of the base.
- [In what specific aspects is the wear resistance of granite reflected?](https://jtlcnc.com/2026/07/10/in-what-specific-aspects-is-the-wear-resistance-of-granite-reflected/): High-quality precision granite (Jinan Green / Zhangqiu Black) has a Mohs hardness of 6–7, higher than cast iron, ordinary steel, aluminum, and Invar.
- [Key advantages of granite on a CMM platform](https://jtlcnc.com/2026/07/10/key-advantages-of-granite-on-a-cmm-platform/): The linear thermal expansion coefficient is stable (4.5~6×10⁻⁶/℃), far lower than steel, cast iron, and aluminum alloys.
- [Calibration standard for granite flatness and parallelism](https://jtlcnc.com/2026/07/09/calibration-standard-for-granite-flatness-and-parallelism/): Applicable to: Newly manufactured, in-use, and repaired granite measuring platforms, divided into 4 accuracy grades: 0, 1, 2, and 3.
- [High-precision marble platforms facilitate precision inspection and mold machining.](https://jtlcnc.com/2026/07/08/high-precision-marble-platforms-facilitate-precision-inspection-and-mold-machining/): In the industry, the "marble" referred to in high-precision inspection platforms is actually dense granite (Jinan Green, diabase), which is the preferred reference carrier for mold machining and metrology inspection.
- [Precise measurement and quality control of precision granite platforms](https://jtlcnc.com/2026/07/08/precise-measurement-and-quality-control-of-precision-granite-platforms/): Precision granite (granite stone) plates serve as the reference plane for metrology, CMM, optical inspection, and precision assembly.
- [To improve machine tool performance and precision, why use a granite bed?](https://jtlcnc.com/2026/07/07/to-improve-machine-tool-performance-and-precision-why-use-a-granite-bed/): To achieve high precision and stability, machine tools must address four core pain points: vibration, thermal deformation, long-term deformation, and wear/corrosion.
- [Why granite plates and bases have become indispensable in high-tech manufacturing](https://jtlcnc.com/2026/07/07/why-granite-plates-and-bases-have-become-indispensable-in-high-tech-manufacturing/): High-end manufacturing (semiconductor lithography, CMM, ultra-precision machining, optical inspection, aerospace metrology) demands extremely strict long-term stability of nano/micronlevel reference bases.
- [Industrial applications of granite air-bearing platforms in ultra-precision motion systems](https://jtlcnc.com/2026/07/06/industrial-applications-of-granite-air-bearing-platforms-in-ultra-precision-motion-systems/): ite air-bearing platform = natural granite high-stability base hydrostatic air bearing air-bearing guide linear motor direct-drive multi-axis motion system.
- [Marble platform grinding process](https://jtlcnc.com/2026/07/04/marble-platform-grinding-process/): The measurement platforms used in the industry actually utilize Jinan Qinghei Granite (commonly known as marble platforms).
- [Ceramics in precision equipment possess both metallic and stone-like properties; how to choose?](https://jtlcnc.com/2026/07/03/ceramics-in-precision-equipment-possess-both-metallic-and-stone-like-properties-how-to-choose/): Cons: Natural texture and impurities, prone to chipping at small holes/thin walls, cannot be made into complex irregular shapes, very heavy, absorbs water and oil stains, slight creep under long-term heavy pressure.
- [Ceramics in precision equipment possess both the characteristics of metal and stone.](https://jtlcnc.com/2026/07/03/ceramics-in-precision-equipment-possess-both-the-characteristics-of-metal-and-stone/): Ceramics in precision equipment combine the comprehensive characteristics of both metals and stone.
- [Anti-cracking process and structural reinforcement technology for granite platform bases](https://jtlcnc.com/2026/07/02/anti-cracking-process-and-structural-reinforcement-technology-for-granite-platform-bases/): The tensile strength of granite is extremely low (only 8~14MPa), making it highly susceptible to micro-cracks and through-cracks caused by residual mining stress, machining cutting stress, thermal stress from temperature changes, concentrated loads, and hard assembly compression.
- [The production and calibration process of granite components from raw materials to precision instruments](https://jtlcnc.com/2026/07/02/the-production-and-calibration-process-of-granite-components-from-raw-materials-to-precision-instruments/): The overall process is divided into seven complete stages: Raw Material Selection → Rough Machining and Shaping → Stress Aging and Stabilization → Precision Grinding and Shaping → Functional Hole and Slot Machining → Constant Temperature Factory Calibration → On-site Re-measurement after Installation.
- [The complete role of granite linear guides in high-speed automation](https://jtlcnc.com/2026/07/01/the-complete-role-of-granite-linear-guides-in-high-speed-automation/): Ordinary steel guide rails only serve the guiding function; the integrated granite linear guide integrates the guide surface, equipment base, and crossbeam into one.
- [Interpretation of precision large-scale granite manual grinding with nanometer-level accuracy](https://jtlcnc.com/2026/07/01/interpretation-of-precision-large-scale-granite-manual-grinding-with-nanometer-level-accuracy/): Extremely low water absorption, making it difficult for oil and coolants to penetrate and causing surface corrosion.
- [What are the application fields of silicon carbide ceramic equipment bases?](https://jtlcnc.com/2026/06/30/what-are-the-application-fields-of-silicon-carbide-ceramic-equipment-bases/): Silicon carbide bases, relying on five core advantages—high specific stiffness, high thermal conductivity, low thermal expansion, wear resistance/cleanliness, and the ability to integrate water-cooling channels—replace granite, cast iron, aluminum alloy, and alumina ceramics.
- [Comparative Table of Core Performance Indicators of Silicon Carbide Ceramic Substrates for Various Application Fields](https://jtlcnc.com/2026/06/30/comparative-table-of-core-performance-indicators-of-silicon-carbide-ceramic-substrates-for-various-application-fields/)
- [Silicon carbide ceramic components are crucial for next-generation precision machinery.](https://jtlcnc.com/2026/06/29/silicon-carbide-ceramic-components-are-crucial-for-next-generation-precision-machinery/): Facing next-generation high-end precision equipment such as EUV/advanced lithography, 3nm and below semiconductor equipment, ultra-precision optics, vacuum metrology, and high-speed nano-motion platforms, traditional granite, aluminum alloys, steel, and alumina ceramics have reached performance bottlenecks.
- [Why is the precision requirement for the base in semiconductor granite equipment components so high?](https://jtlcnc.com/2026/06/29/why-is-the-precision-requirement-for-the-base-in-semiconductor-granite-equipment-components-so-high/): Semiconductor manufacturing belongs to nano-scale precision processing/inspection (lithography, metrology, probe stations, coating, cutting equipment), with minimum feature sizes reaching the 2nm and 3nm levels.
- [How to choose the most suitable granite surface plate for measurement and calibration](https://jtlcnc.com/2026/06/28/how-to-choose-the-most-suitable-granite-surface-plate-for-measurement-and-calibration/): Core Requirements for Metrology and Calibration Tables: Long-term dimensional stability, extremely low thermal expansion, minimal deformation, traceable flatness, vibration damping, and wear resistance.
- [What is the achievable flatness of a high-precision granite machine base with threaded inserts?](https://jtlcnc.com/2026/06/27/what-is-the-achievable-flatness-of-a-high-precision-granite-machine-base-with-threaded-inserts/): Implementing the national standard GB/T 20428-2006 "Granite Surface Plates", divided into 4 accuracy grades.
- [How to choose a granite machine base with threaded inserts that is suitable for yourself?](https://jtlcnc.com/2026/06/27/how-to-choose-a-granite-machine-base-with-threaded-inserts-that-is-suitable-for-yourself/): Follow the 7-step screening process: Application Scenario → Material → Precision → Dimensions & Thickness → Threaded Insert Configuration → Supporting Structure → Manufacturer Process to avoid common pitfalls such as hole deformation, insert detachment, insufficient precision, and inadequate rigidity in one go.
- [High-precision granite machine tool base with threaded inserts](https://jtlcnc.com/2026/06/26/high-precision-granite-machine-tool-base-with-threaded-inserts/): Made of dense black natural granite (primarily Jinan Green) through integral grinding and shaping, the base features pre-embedded stainless steel threaded inserts (threaded sleeves) on the working surface, sides, and bottom.
- [How to ensure the accuracy of a granite machine base with threaded inserts?](https://jtlcnc.com/2026/06/26/how-to-ensure-the-accuracy-of-a-granite-machine-base-with-threaded-inserts/): Common causes of precision failure: internal stress of the stone, stress from embedded inserts, insufficient grinding process, environmental temperature changes, reversed processing sequence, loose inserts, and insufficient rigidity.
- [Precision granite platform with integrated mounting holes](https://jtlcnc.com/2026/06/25/precision-granite-platform-with-integrated-mounting-holes/): Deformation resistance: Long-term heavy loading and ambient temperature environments maintain stable flatness.
- [Precision granite XY platform for ultra-precision measurement](https://jtlcnc.com/2026/06/25/precision-granite-xy-platform-for-ultra-precision-measurement/): Industry Standard Materials: Jinan Blue, Indian Black, Diorite (Black Gold Sand); marble is strictly prohibited.
- [Granite T-slot plate is a high-precision workpiece mounting reference table.](https://jtlcnc.com/2026/06/24/granite-t-slot-plate-is-a-high-precision-workpiece-mounting-reference-table/): The granite T-slot plate (also known as granite T-slot platform, marble T-slot plate) is made of high-density natural granite (mainly Jinan Green) as the base material, precision diamond-milled, grooved, and hand-polished.
- [Ultra-precision granite gantry assembly](https://jtlcnc.com/2026/06/24/ultra-precision-granite-gantry-assembly/): The-precision granite gantry is the core load-bearing structure for 3D precision motion platforms, vision inspection equipment, semiconductor packaging, laser processing, coordinate measuring machines (CMM and optical interferometry equipment.
- [What methods can further improve the vibration isolation effect of a 3D precision platform?](https://jtlcnc.com/2026/06/23/what-methods-can-further-improve-the-vibration-isolation-effect-of-a-3d-precision-platform/): Divided into four major dimensions: base body vibration reduction, isolation support system, internal platform vibration suppression, and environmental/operational optimization, covering general modification/selection solutions for granite precision motion platforms, suitable for micron and sub-micron level inspection, semiconductor, and optical equipment.
- [What are the application scenarios of black granite bases?](https://jtlcnc.com/2026/06/23/what-are-the-application-scenarios-of-black-granite-bases/): Categorized into four major scenarios: Industrial Precision Metrology Core Scenarios (corresponding to your product copy "Ultra-stable Metrology Foundation"), Optical/Scientific Research Equipment, High-end Manufacturing Production Lines, and Other Supporting Scenarios, directly usable for product catalogs and foreign trade promotion.
- [U-shaped Precision Granite Gantry (Integrated Granite U-shaped Gantry)](https://jtlcnc.com/2026/06/22/u-shaped-precision-granite-gantry-integrated-granite-u-shaped-gantry/): The U-shaped granite gantry is an integrally molded U-shaped closed stone frame, overall ground and processed from a bottom platform base two vertical granite columns on the left and right a top granite crossbeam.
- [Complete Introduction to High-Precision Granite Optical Base](https://jtlcnc.com/2026/06/22/complete-introduction-to-high-precision-granite-optical-base/): I. Material Description Commonly referred to in the industry as "marble," it is actually natural black diabase (Indian Black/Jinan Blue Granite), 000grade material specifically for optical equipment, with characteristics adapted to optical nano-level stability requirements: 1.
- [How to maintain the stone base of a marble motion platform?](https://jtlcnc.com/2026/06/21/how-to-maintain-the-stone-base-of-a-marble-motion-platform/): Core Characteristics of Granite Base: High hardness, wear resistance, and good thermal stability, but high brittleness, susceptible to impact, acids/alkalis, and long-term water seepage into joints.
- [What are the protection taboos for the stone base of a marble sports platform?](https://jtlcnc.com/2026/06/20/what-are-the-protection-taboos-for-the-stone-base-of-a-marble-sports-platform/): Hydrochloric acid, oxalic acid, rust removers, bleach, caustic soda, heavy-duty alkaline degreasers, etching liquids, electroplating chemicals, welding slag cleaners.
- [What are the emergency handling methods for the stone base damage of the marble motion platform?](https://jtlcnc.com/2026/06/19/what-are-the-emergency-handling-methods-for-the-stone-base-damage-of-the-marble-motion-platform/): Categorized by damage severity into six major types: slight stains and white spots, shallow scratches, small chipped edges and corners, oil and stain penetration, micro-cracks, and severe damage to the reference surface.
- [What is the service life of a marble sports platform?](https://jtlcnc.com/2026/06/18/what-is-the-service-life-of-a-marble-sports-platform/): The service life of a marble (granite) motion platform is divided into two parts: the stone base and the motion transmission components, with a huge difference in their lifespans.
- [Application of marble motion platform](https://jtlcnc.com/2026/06/18/application-of-marble-motion-platform/): Marble motion platforms generally refer to integrated slides consisting of a natural granite precision motion base linear motors / air bearing guides.
- [Granite 2D Imaging System Base Selection Standard Daily Complete Maintenance Manual](https://jtlcnc.com/2026/06/17/granite-2d-imaging-system-base-selection-standard-daily-complete-maintenance-manual/): Dense mineral structure, black background, no white spots or inclusions, extremely low linear expansion coefficient, no pores, suitable for vision measuring machines, CMMs, and 2D measuring machines.
- [](https://jtlcnc.com/2026/06/17/2946/): The granite (Grade 00 Jinan Green natural) base is the core reference load-bearing component of 2D/2.5D vision measuring machines.
- [What is the accuracy grade standard for granite square boxes?](https://jtlcnc.com/2026/06/16/what-is-the-accuracy-grade-standard-for-granite-square-boxes/): Accuracy Grade: Grade 000, Grade 00, Grade 0 (the smaller the number, the higher the accuracy); some scenarios still use the old standard Grade 1 (General Industrial Grade).
- [Application of Granite Precision Measuring Instruments - Square Box](https://jtlcnc.com/2026/06/16/application-of-granite-precision-measuring-instruments-square-box/): Granite square blocks (also known as granite right-angle square blocks or inspection square blocks) are manufactured according to JB/T 10027-2017.
- [How is the accuracy grade of granite precision measuring tools - square rulers classified?](https://jtlcnc.com/2026/06/15/how-is-the-accuracy-grade-of-granite-precision-measuring-tools-square-rulers-classified/): Granite Precision Square Accuracy Grade Classification Domestic Executive Standard: JB/T 10027-2017 "Granite Surface Plates, Straight Edges, and Squares", classified by working surface flatness, squareness accuracy, and parallelism, divided into three grades: 000, 00, and 0.
- [Application of Granite Precision Measuring Tools - Square](https://jtlcnc.com/2026/06/15/application-of-granite-precision-measuring-tools-square/): Granite precision square is a high-precision geometric measurement standard, primarily used for the inspection and calibration of perpendicularity, parallelism, and flatness, and is widely applied in fields such as machinery manufacturing, precision assembly, metrology calibration, and aerospace.
- [How is the accuracy grade of granite parallel rulers classified?](https://jtlcnc.com/2026/06/14/how-is-the-accuracy-grade-of-granite-parallel-rulers-classified/): The domestic executive standard JB/T 7878-2017 "Rock Straightedges" divides them into three grades: Grade 00, Grade 0, and Grade 1, based on geometric tolerances such as straightness, working surface parallelism, and flatness.
- [Application of Granite Precision Measuring Tools - Parallel Rulers](https://jtlcnc.com/2026/06/14/application-of-granite-precision-measuring-tools-parallel-rulers/): Granite parallel bars (also known as granite parallel gauges / flat bars) are high-precision reference measuring tools made of natural granite (such as Jinan Green) through precision machining and manual grinding.
- [Advantages and applications of granite surface plates](https://jtlcnc.com/2026/06/13/advantages-and-applications-of-granite-surface-plates/): A granite comparison table is a specialized comparison inspection device integrated with a high-precision granite platform as the base body, equipped with components such as micrometers, dial indicators, dial test indicators, indicator holders, and limit blocks.
- [What are the daily maintenance methods for granite surface plates?](https://jtlcnc.com/2026/06/13/what-are-the-daily-maintenance-methods-for-granite-surface-plates/): Granite has high hardness and good stability, but it is susceptible to severe impacts, strong acids and bases, and long-term accumulation of dirt.
- [Application of granite precision measuring tools - parallel gauges](https://jtlcnc.com/2026/06/12/application-of-granite-precision-measuring-tools-parallel-gauges/): Granite parallel blocks (also commonly known as parallel blocks, parallel plates, or height blocks) are made of natural granite.
- [Application of Granite Precision Gauges - V-blocks](https://jtlcnc.com/2026/06/12/application-of-granite-precision-gauges-v-blocks/): Granite V-blocks, made of natural black granite as the base material, feature high precision, strong stability, resistance to deformation, rust-proof, wear-resistant, non-magnetic, and corrosion-resistant properties.
- [Application of Granite Precision Measuring Tools - Triangle Square](https://jtlcnc.com/2026/06/11/application-of-granite-precision-measuring-tools-triangle-square/): Granite precision square (also known as granite right angle square / straight edge) is a high-precision 90° reference gauge, primarily used for perpendicularity / right angle inspection, machine tool and equipment calibration, tooling positioning, and precision scribing.
- [How to choose a suitable granite base CMM?](https://jtlcnc.com/2026/06/11/how-to-choose-a-suitable-granite-base-cmm/): Indian Black (M10) / Imported Black Granite: High density, lowest thermal expansion coefficient, best stability, used for high-precision / laboratory-grade CMMs (aerospace, medical, optics).
- [Application of granite bases in coordinate measuring machines](https://jtlcnc.com/2026/06/10/application-of-granite-bases-in-coordinate-measuring-machines/): Granite is the core reference carrier for the vast majority of stationary CMMs other than bridge-type, gantry-type, and portable ones.
- [Application of granite base in 2D imaging systems](https://jtlcnc.com/2026/06/10/application-of-granite-base-in-2d-imaging-systems/): The granite base is the core support and precision reference of the 2D imaging system, directly determining the equipment's long-term stability, measurement accuracy, and environmental adaptability, serving as the "foundation" of precision measurement.
- [](https://jtlcnc.com/2026/06/09/2900/): Relying on core characteristics such as excellent thermal stability, strong vibration absorption, long-lasting precision, wear and corrosion resistance, and non-magnetic properties, the precision granite platform has become the core reference carrier in high-end precision manufacturing, inspection, and scientific research fields.
- [Industrial-grade Granite Precision Platform](https://jtlcnc.com/2026/06/09/industrial-grade-granite-precision-platform/): The industrial-grade granite precision platform, also known as a marble precision platform or granite inspection platform, is a high-precision reference gauge and supporting base made from high-quality natural black granite (such as Jinan Green, Taishan Green, etc.)
- [The main use of the marble square box](https://jtlcnc.com/2026/06/08/the-main-use-of-the-marble-square-box/): Marble square (commonly referred to as granite square) is a high-precision right-angle reference gauge.
- [Marble Square Box vs. Cast Iron Square Box](https://jtlcnc.com/2026/06/07/marble-square-box-vs-cast-iron-square-box/): Marble Square Box vs. Cast Iron Square Box: ComparisonI. Core Performance1.
- [What are the advantages of air-bearing motion platforms?](https://jtlcnc.com/2026/06/06/what-are-the-advantages-of-air-bearing-motion-platforms/): Relies on compressed air to form a 0-15μm air film for levitation, with no physical contact between the slider and the base.
- [Can the precision of an air-bearing multi-axis precision motion platform reach the nanometer level?](https://jtlcnc.com/2026/06/05/can-the-precision-of-an-air-bearing-multi-axis-precision-motion-platform-reach-the-nanometer-level/): Environment: Dust-free, VC-E ultra-low vibration foundation.
- [Air-bearing multi-axis precision motion platform](https://jtlcnc.com/2026/06/05/air-bearing-multi-axis-precision-motion-platform/): Using 000/00 grade natural granite as the reference base, it adopts an air bearing non-contact levitation linear/voice coil direct drive structure, with no mechanical friction and no backlash.
- [Precision Specification of Granite Air Flotation Platform](https://jtlcnc.com/2026/06/04/precision-specification-of-granite-air-flotation-platform/): Applicable Standards: GB/T20428, ISO8512-2, DIN876, ISO230-1; Test Ambient: 20℃±1℃, RH40%~60%, Vibration Grade VC-E, Clean Dust-free Environment Part 1: Granite Base Geometric Precision (Benchmark Surface) Precision Grade Flatness Tolerance(μm per meter) Surface Roughness Ra Adjacent Surface Squareness Typical Application Grade 000 (Ultra-precision) ≤1.0 ≤0.05μm ≤1.5μm/m Semiconductor, Lithography, Nano Inspection Stage Grade 00 (High Precision) ≤2.0 ≤0.10μm ≤3.0μm/m CMM Base, Optical Inspection Equipment Grade 0 (Industrial Precision) ≤4.0 ≤0.20μm ≤6.0μm/m Precision Machining & Vision Inspection Grade 1 (General Industrial) ≤8.0 ≤0.40μm ≤12μm/m Training Bench, Ordinary Automation Fixture Flatness Calculation Formula: Tolerance = Coefficient × √(L×W); Coefficient:000=0.003,00=0.006,0=0.012,1=0.024 (Unit:μm) Additional Base Material & Machining Requirement 1.
- [What brands of epoxy glue can be used for repairing granite bases?](https://jtlcnc.com/2026/06/03/what-brands-of-epoxy-glue-can-be-used-for-repairing-granite-bases/): Divided into three categories: Imported High-End (Preferred for lithography machines / 000-grade platforms), Industrial Mid-Range (Ordinary 00-grade inspection platforms), and Domestic Precision Alternatives (Cost-effective).
- [How to prevent granite platform cracking](https://jtlcnc.com/2026/11/02/how-to-prevent-granite-platform-cracking-2/): Prioritize fine-grained granite with few cracks and layers, such as Jinan Green and Zhangqiu Black.
- [What factors affect the coaxiality of coordinate measuring machines?](https://jtlcnc.com/2026/10/31/what-factors-affect-the-coaxiality-of-coordinate-measuring-machines-2/): Factors affecting the coaxiality of Coordinate Measuring Machines (CMMs) essentially boil down to: inaccurate axint, unstable workpieces, machine inaccuracy, unstable environment, and improper methods.
- [Development Trends of Granite Platforms and Components](https://jtlcnc.com/2026/10/30/development-trends-of-granite-platforms-and-components-2/): Precision granite platforms and components are upgrading in five major directions: high precision, integration, intelligence, greenness, and servitization.
- [Features of granite guide rail platforms](https://jtlcnc.com/2026/10/29/features-of-granite-guide-rail-platforms-2/): Natural aging, extremely low internal stress: High-quality granite (s Jinan Black) undergoes geological aging over hundreds of millions of years, releasing internal residual stress.
- [How to check the flatness error of a granite platform](https://jtlcnc.com/2026/10/28/how-to-check-the-flatness-error-of-a-granite-platform-2/): Flatness error inspection of granite platforms shall be conducted in accordance with GB/T 20428-2006 "Rock Slabs"* as a priority.
- [Packaging, Storage, and Precautions for Granite Platforms](https://jtlcnc.com/2026/10/28/packaging-storage-and-precautions-for-granite-platforms-2/): Clean the platform surfaceoughly, free of dust, oil stains, and water marks.
- [Influence of Cutting, Thickness Measurement, and Polishing Processes on Granite Platforms](https://jtlcnc.com/2026/10/27/influence-of-cutting-thickness-measurement-and-polishing-processes-on-granite-platforms-2/): Unreasonable cutting allowance → Insufficient flatness after polishing, unevthickness in local areas.
- [Causes and Preventive Measures of Granite Platform Deformation](https://jtlcnc.com/2026/10/26/causes-and-preventive-measures-of-granite-platform-deformation-2/): Temperature Fluctuations: Although granite has a low coefficient of thermal expansion, environmental temperature fluctuations exceeding ±5°C can cause local warping and micro-cracks due to thermal expansion and contraction; direct sunlight or proximity to heat/cold sources create local temperature gradients, accelerating deformation.
- [Cleaning and Maintenance of Granite Measuring Tools](https://jtlcnc.com/2026/10/24/cleaning-and-maintenance-of-granite-measuring-tools-2/): Applicable tde 00, Grade 0 granite platforms, straight edges, angle blocks, parallels, etc.
- [The most common and practical fixing method for industrial precision granite platforms / plates](https://jtlcnc.com/2026/10/23/the-most-common-and-practical-fixing-method-for-industrial-precision-granite-platforms-plates-2/): ** Core Principle:** Three pnts define a plane, avoiding distortion caused by four-point loading and affecting flatness.
- [Delivery Acceptance Conditions and Quality Control Standards for Granite Components](https://jtlcnc.com/2026/10/23/delivery-acceptance-conditions-and-quality-control-standards-for-granite-components-2/): The delivery acceptance of granite components is centered on complete documentation, qualified appearance, precise dimensions, compliant ormance, and stable installation.
- [Why do I apply a layer of oil to the granite base before shipping?](https://jtlcnc.com/2026/10/22/why-do-i-apply-a-layer-of-oil-to-the-granite-base-before-shipping-2/): Anti-rust & Anti-corrosion Protection: Granite contains trace metal minerals (e.g., feldspar, pyrite).
- [Granite slab grade: Ensure the accuracy of precision measurement](https://jtlcnc.com/2026/10/21/granite-slab-grade-ensure-the-accuracy-of-precision-measurement-2/): The precision grade of granite flat plates is the core guarantee for the accuracy of precise measurements.
- [Common misconceptions in granite bed maintenance](https://jtlcnc.com/2026/10/20/common-misconceptions-in-granite-bed-maintenance-2/): The core of the maintenance of granite bed (precision platform/base) is to prevent acid andali, waterproof, prevent physical damage, prevent temperature difference, and prevent pollution.
- [Granite platform: Precision and stability drive detailed introduction](https://jtlcnc.com/2026/10/19/granite-platform-precision-and-stability-drive-detailed-introduction-2/): Granite (marble) precision platform is a reference measurement and precision assembly base platform made of granite as the base material, which has been precisely processed and strictly inspected.
- [How to check the straightness of granite straightedge](https://jtlcnc.com/2026/10/19/how-to-check-the-straightness-of-granite-straightedge-3/): Appl Scenarios: Factory Inspection, Customer Acceptance, High-Precision Tooling Calibration.
- [The influence of humidity on precision granite surface plate](https://jtlcnc.com/2026/10/18/the-influence-of-humidity-on-precision-granite-surface-plate-2/): The impact of humidity on precision granite slabs / marble platforms, the core is: granite itself is very stable, but humidity can destroy through the environment, supporting structures, and measurement conditions.
- [How to check the straightness of granite straightedge](https://jtlcnc.com/2026/10/17/how-to-check-the-straightness-of-granite-straightedge-2/): Appl Scenarios: Factory Inspection, Customer Acceptance, High-Precision Tooling Calibration.
- [In precision engineering, functional granite components are the core carriers to achieve sub-micron (≤1μm) long-term stability.](https://jtlcnc.com/2026/10/17/in-precision-engineering-functional-granite-components-are-the-core-carriers-to-achieve-sub-micron-%e2%89%a41%ce%bcm-long-term-stability-2/): Extremely low coefficient of thermal expansion: about (2–3)×10⁻⁶/℃, only 1/2 of steel, 1/4 of aluminum, and 1/3 of cast iron; in an environment of 20±0.5℃, the thermal drift can be controlled within 0.3μm/m within 24 hours.
- [The latest news of the global precision granite industry](https://jtlcnc.com/2026/10/16/the-latest-news-of-the-global-precision-granite-industry-2/)
- [Global Precision Granite Industry Report (2026)](https://jtlcnc.com/2026/10/16/global-precision-granite-industry-report-2026-2/): Global Precision Granite Industry Report (2026) ## Executive Summary The global precision granite industry has entered a stage of steady growth, characterized by **high barriers to entry**, **strong specialization**, and a **stable competitive landscape**.
- [The structure of granite](https://jtlcnc.com/2026/10/15/the-structure-of-granite-2/): Granite is an acidic plutonic intrusive igneous rock.
- [Artificial granite and mineral castings: Innovative materials for the machine tool industry](https://jtlcnc.com/2026/10/15/artificial-granite-and-mineral-castings-innovative-materials-for-the-machine-tool-industry-2/): Artificial granite, also known as resin concrete or resin-based composite material, is primarily made from natural granite as aggregate, combined with epoxy resin as a binder, and supplemented with appropriate fillers and diluents.
- [Application of Artificial Granite in Machine Tool Manufacturing](https://jtlcnc.com/2026/10/14/application-of-artificial-granite-in-machine-tool-manufacturing-2/): Industrial stone materials.
- [In the vast river of human civilization, stone has always played a silent and solid role.](https://jtlcnc.com/2026/10/14/in-the-vast-river-of-human-civilization-stone-has-always-played-a-silent-and-solid-role/): In the vast river of human civilization, stone has always played a silent and solid role.
- [Air Bearing Granite Platform: Working Principle and Technical Features Explained](https://jtlcnc.com/2026/10/13/air-bearing-granite-platform-working-principle-and-technical-features-explained-2/): What are the advantages of marble air-float platforms?
- [Accuracy Requirements for Granite Surface Plates in Aerospace Component Inspection](https://jtlcnc.com/2026/10/13/accuracy-requirements-for-granite-surface-plates-in-aerospace-component-inspection-3/): Aerospace component inspection imposes extremely stringent accuracy demands on high-precision granite surface plates, as dimensional and geometric errors directly affect assembly fit, structural strength, flight safety and service life of aero-engines, turbine blades, fuselage frames, control components and other critical parts.
- [The marble platform is a precision measuring tool made of marble](https://jtlcnc.com/2026/10/12/the-marble-platform-is-a-precision-measuring-tool-made-of-marble-2/): The marble platform is a precision measuring tool made of marble, also known as a granite plate.
- [Accuracy Requirements for Granite Surface Plates in Aerospace Component Inspection](https://jtlcnc.com/2026/10/11/accuracy-requirements-for-granite-surface-plates-in-aerospace-component-inspection-2/): Aerospace component inspection imposes extremely stringent accuracy demands on high-precision granite surface plates, as dimensional and geometric errors directly affect assembly fit, structural strength, flight safety and service life of aero-engines, turbine blades, fuselage frames, control components and other critical parts.
- [What are the specific influencing factors on the accuracy retention of granite guideways?](https://jtlcnc.com/2026/10/10/what-are-the-specific-influencing-factors-on-the-accuracy-retention-of-granite-guideways/): Core Logic: The granite stone itself does not naturally age and deform over time (geological stresses of hundreds of millions of years have already been released).
- [How long can the accuracy of a granite guide rail be maintained?](https://jtlcnc.com/2026/10/09/how-long-can-the-accuracy-of-a-granite-guide-rail-be-maintained/): Core Takeaway: The granite body itself almost never deforms due to material aging; precision loss is mostly not caused by stone wear, but by impacts, bumps, foundation settlement, and improper support.
- [Core Advantages (Why Granite + Guide Rails) - Ultra-high Precision](https://jtlcnc.com/2026/10/09/core-advantages-why-granite-guide-rails-ultra-high-precision-2/): Granite (high-quality natural granite such as Jinan Green) guide rails are the core reference components of precision machine tools, CMMs, and inspection equipment.
- [Marble platform common questions summary](https://jtlcnc.com/2026/10/08/marble-platform-common-questions-summary-2/): What should be paid attention to when grinding marble?
- [Installation Steps for Granite Surface Plate Base](https://jtlcnc.com/2026/10/07/installation-steps-for-granite-surface-plate-base-2/): Prepare tools: level gauge, torque wrench, rubber mallet, cleaning cloth, anchor bolts, leveling pads, and anti-vibration pads.
- [Three-coordinate platform](https://jtlcnc.com/2026/10/07/three-coordinate-platform-2/): Three-coordinate platform material: high-strength cast iron HT200-300, with a working surface hardness of HB170240, and has been through two manual treatments (manual annealing at 600-700 degrees and natural aging for 2-3 years), precision of this product is stable and has good wear resistance.
- [What are the common materials for marble platforms?](https://jtlcnc.com/2026/10/06/what-are-the-common-materials-for-marble-platforms-2/): MarblePlatform #Zhangqiuhei #Jinanqing #Granite The stones used for marble platforms can be divided into Shandong Jinan Qing stone, Hebei stone, Sesame Black stone, Fujian stone, Dalian Grey stone, etc., according to the producing area.
- [What are the methods for measuring flatness?](https://jtlcnc.com/2026/10/05/what-are-the-methods-for-measuring-flatness-2/): There are many methods for measuring flatness, here are several common ones:Gap gauge measurement method: The gap gauge is mainly used for the measurement of clearance spacing, and can only be used for rough measurement of flatness.
- [Differences Between Indian Granite and Ordinary Stone](https://jtlcnc.com/2026/10/04/differences-between-indian-granite-and-ordinary-stone-2/)
- [Applications of High-Precision Granite Platforms](https://jtlcnc.com/2026/10/03/applications-of-high-precision-granite-platforms-2/): High-precision granite platforms, leveraging the unique physical properties of natural stone, have become a critical foundation in industries with extreme accuracy demands.
- [Marble platform accuracy grade table](https://jtlcnc.com/2026/10/02/marble-platform-accuracy-grade-table-2/): The marble platform is made of high-quality granite.
- [Installation Requirements for Linear Guides on Marble Platforms](https://jtlcnc.com/2026/10/02/installation-requirements-for-linear-guides-on-marble-platforms-2/): In the process of industrial production, marble platforms are type of high-precision measuring reference surface, and their unique physical characteristics give them significant advantages in the field of precision measurement.
- [The influence of leveling the granite platform on the flatness after installation](https://jtlcnc.com/2026/09/30/the-influence-of-leveling-the-granite-platform-on-the-flatness-after-installation-2/): I. Granite platforms are made of granite raw material.
- [Flatness Measurement](https://jtlcnc.com/2026/09/29/flatness-measurement-2/): I. Preparations before measurement: All set, just need to measureFirstly, we need to ensure the stability of the measurement environment.
- [The difference between marble platforms of grade 0 and grade 00](https://jtlcnc.com/2026/09/29/the-difference-between-marble-platforms-of-grade-0-and-grade-00-3/): The difference in the division of marble platform grades the use and understanding of marble platforms, many people are not very clear about the division of flatness grades of marble platforms, only knowing the names such as grade 0, grade00, and grade 000, but they are not sure what the specific precision is.
- [The Artisan's Hand at the Pinnacle of Microns: Why Must Top-Tier Granites Rely on Manual Lapping?](https://jtlcnc.com/2026/09/28/the-artisans-hand-at-the-pinnacle-of-microns-why-must-top-tier-granites-rely-on-manual-lapping-2/): In the realm of precision manufacturing, accuracy is an eternal pursuit.
- [Material Science of Granite Mechanical Components for Precision Engineering](https://jtlcnc.com/2026/09/27/material-science-of-granite-mechanical-components-for-precision-engineering-2/): Mechanical Strength: With a compressive strength of 245-254 MPa and elastic modulus of 1.27-1.47 N/mm2, granite withstands heavy loads without deformation.
- [Applications of Granite Precision Platforms in Industrial Metrology and Manufacturing](https://jtlcnc.com/2026/09/26/applications-of-granite-precision-platforms-in-industrial-metrology-and-manufacturing-2/): Applications of Granite Precision Platforms in Industrial Metrology and Manufacturing Granite precision platforms, also known as granite surface plates or marble measuring tables, are the unrivaled gold standard in high-precision industrial measurement and manufacturing.
- [Innovations in Granite Mechanical Component Technology](https://jtlcnc.com/2026/09/25/innovations-in-granite-mechanical-component-technology-2/): Gradient Composites: Layered structures with metal-ceramic interfaces offer tailored thermal conductivity for aerospace applications.
- [Multi-Stage Manufacturing Processes of Granite Inspection Plates](https://jtlcnc.com/2026/09/24/multi-stage-manufacturing-processes-of-granite-inspection-plates-2/): Raw Material Selection: Blocks are sourced from quarries with consistent mineral composition (typically 60-70% quartz, 15-20% feldspar, and <10% mica).
- [Precautions for Granite precision components assembly](https://jtlcnc.com/2026/09/24/precautions-for-granite-precision-components-assembly-2/): During the assembly process, whether it is cast iron parts or marble components, stone or other materials, there are many key points that need to be followed collectively to comply with the contract.
- [Grinding process steps for granite surface plate](https://jtlcnc.com/2026/09/23/grinding-process-steps-for-granite-surface-plate-2/): Grinding process steps for granite precision mechanical platform 1.
- [The treatment method for the precision deviation and stability decrease of the granite surface plate](https://jtlcnc.com/2026/09/23/the-treatment-method-for-the-precision-deviation-and-stability-decrease-of-the-granite-surface-plate-2/): Firstly, it is imperative to cease operation on the high-precision workbench and conduct a systematic inspection.
- [Core application areas of granite precision mechanical components](https://jtlcnc.com/2026/09/22/core-application-areas-of-granite-precision-mechanical-components-2/): Optical and optoelectronic systems · Telescope support: Large granite structures support lens groups, resisting environmental deformation.
- [Distinction of marble platform grade division](https://jtlcnc.com/2026/09/21/distinction-of-marble-platform-grade-division/): The difference in the division of marble platform grades the use and understanding of marble platforms, many people are not very clear about the division of flatness grades of marble platforms, only knowing the names such as grade 0, grade00, and grade 000, but they are not sure what the specific precision is.
- [Maintenance and care of granite measuring tools](https://jtlcnc.com/2026/09/21/maintenance-and-care-of-granite-measuring-tools-2/): Granite measuring tools are widely used in precision manufacturing, scientific research, and other fields due to their high precision, corrosion resistance, and stability.
- [Usage scenarios of granite measuring tools](https://jtlcnc.com/2026/09/20/usage-scenarios-of-granite-measuring-tools-2/): Granite measuring tools are widely used in scenarios with strict requirements for measurement accuracy and environmental adaptability due to their high precision, corrosion resistance, and anti-interference properties.
- [Disadvantages of granite measuring tools](https://jtlcnc.com/2026/09/19/disadvantages-of-granite-measuring-tools-2/): Performance: Although granite has high hardness, it is brittle and prone to cracking or angular collapse when subjected to external impacts such as falling or heavy objects, even leading to overall fracture.
- [How long is the service life of granite measuring tools](https://jtlcnc.com/2026/09/18/how-long-is-the-service-life-of-granite-measuring-tools-2/): The service life of granite measuring tools usually exceeds 30 years, and with proper use and maintenance, their actual life may be even longer, with some cases showing that it can last for decades or even hundreds of years.
- [Advantages of granite measuring tools](https://jtlcnc.com/2026/09/17/advantages-of-granite-measuring-tools-2/): Granite measuring tools have demonstrated significant advantages in the field of precision measurement due to their unique material properties.
- [Material characteristics of granite measuring tools](https://jtlcnc.com/2026/09/16/3411/): The main mineral components of granite are quartz, feldspar, and a small amount of biotite, with a Mohs hardness of 6.5 or above and a Shore hardness (HS) of over 70.
- [Service life and maintenance of Shandong Jintelai granite precision platform](https://jtlcnc.com/2026/09/15/service-life-and-maintenance-of-shandong-jintelai-granite-precision-platform/): If Shandong Jintailai's granite precision platforms are used for CMM, measurement, inspection, or assembly, their lifespan cannot simply be judged in "years"—the granite body itself is extremely stable, and what truly determines the service life is often wear, bumps, and contamination of the working surface, as well as whether the platform is correctly supported and subjected to long-term stress.
- [Key production technologies of large precision granite worktables](https://jtlcnc.com/2026/09/14/key-production-technologies-of-large-precision-granite-worktables/): Core Logic: Raw Material Selection → Multi-stage Stress Relief Aging → Graded CNC Grinding → Constant Temperature Ultra-precision Polishing → Precision Hole / Insert Integration → Constant Temperature Closed-loop Inspection → Lifting and Support Design; The biggest challenge for 00/000 grade large platforms is not simply grinding the surface, but controlling long-term stress creep, suppressing temperature difference deformation, and ensuring global surface flatness uniformity.
- [Analyze how natural granite stone imparts exceptional wear resistance to granite platforms, incorporating the application scenarios of the platforms.](https://jtlcnc.com/2026/09/13/analyze-how-natural-granite-stone-imparts-exceptional-wear-resistance-to-granite-platforms-incorporating-the-application-scenarios-of-the-platforms/): Natural granite is a deep-seated acidic igneous rock, primarily composed of tightly interlocked and interwoven high-hardness mineral crystals such as quartz (Mohs hardness ≈ 7) and feldspar (Mohs hardness ≈ 6), with extremely low internal porosity and a dense grain structure.
- [Analyzing natural granite stone gives granite platforms excellent wear resistance.](https://jtlcnc.com/2026/09/12/analyzing-natural-granite-stone-gives-granite-platforms-excellent-wear-resistance/): Logical Meaning: Granite surface plates use natural granite as the raw material.
- [How does temperature change affect accuracy?](https://jtlcnc.com/2026/09/11/how-does-temperature-change-affect-accuracy/): Simple conclusion: Temperature is one of the core factors causing accuracy drift in precision measurement, understood in two parts: the thermal expansion and contraction of the material itself the temperature gradient of the entire equipment.
- [Analyze the granite gantry structure to adapt to semiconductor production equipment and its vibration damping advantages](https://jtlcnc.com/2026/09/10/analyze-the-granite-gantry-structure-to-adapt-to-semiconductor-production-equipment-and-its-vibration-damping-advantages/): I. What is a Granite Gantry Structure?
- [What are the benefits of an environment with a relative humidity of 40%–60% RH for granite precision platforms?](https://jtlcnc.com/2026/09/09/what-are-the-benefits-of-an-environment-with-a-relative-humidity-of-40-60-rh-for-granite-precision-platforms/): This range is the optimal humidity range for granite metrology platforms, balancing the stability of the stone itself, embedded metal parts, and matching measuring tools.
- [Does humidity affect granite precision platforms?](https://jtlcnc.com/2026/09/09/does-humidity-affect-granite-precision-platforms/): Dense, high-quality granite (Jinan Green) itself has very low porosity.
- [What is the market prospect for granite structural components of high-precision machine tools?](https://jtlcnc.com/2026/09/08/what-is-the-market-prospect-for-granite-structural-components-of-high-precision-machine-tools-2/): Granite structural components include machine tool beds, crossbeams, columns, linear bases, and guide rail bases.
- [What types of lifting tools can be used to lift a granite machine tool bed without pre-drilled lifting holes?](https://jtlcnc.com/2026/09/07/what-types-of-lifting-tools-can-be-used-to-lift-a-granite-machine-tool-bed-without-pre-drilled-lifting-holes/): Granite is highly brittle and sensitive to local stress, and does not allow arbitrary drilling or tapping.
- [How to avoid surface crushing and scratching by lifting tools when lifting a granite machine tool bed?](https://jtlcnc.com/2026/09/06/how-to-avoid-surface-crushing-and-scratching-by-lifting-tools-when-lifting-a-granite-machine-tool-bed/): Granite is highly brittle and has high-precision working surfaces. Direct contact with lifting tools can easily cause dents, edge chipping, and scratches.
- [How to choose the right lifting tools for a granite machine bed?](https://jtlcnc.com/2026/09/05/how-to-choose-the-right-lifting-tools-for-a-granite-machine-bed/): Granite machine beds (marble bases) are highly brittle, sensitive to impact and local compressive stress, and strictly prohibited from being squeezed by single-point hard clamping.
- [What are the anti-collision protection measures when installing a granite machine tool bed?](https://jtlcnc.com/2026/09/04/what-are-the-anti-collision-protection-measures-when-installing-a-granite-machine-tool-bed/): Granite is highly brittle, and its edges, threaded holes, and guide rail mounting surfaces are prone to chipping and internal micro-cracking when impacted, directly compromising precision.
- [How to ensure natural granite components remain dimensionally stable for decades](https://jtlcnc.com/2026/09/03/how-to-ensure-natural-granite-components-remain-dimensionally-stable-for-decades/): Due to its high hardness, excellent wear resistance, and low coefficient of thermal expansion, granite is widely used in precision equipment fields such as precision equipment bases, inspection platforms, and machine tool bases.
- [What are the advantages of the processing technology for granite equipment bases with mounting holes?](https://jtlcnc.com/2026/09/02/what-are-the-advantages-of-the-processing-technology-for-granite-equipment-bases-with-mounting-holes/): Granite (such as Jinan Green) equipment bases featuring threaded holes, countersunk holes, through holes, dowel holes, and T-slots are commonly used structures for precision inspection equipment, automation equipment, CMMs, and optical equipment.
- [Full process control of precision granite tables from raw material selection to finished products](https://jtlcnc.com/2026/09/02/full-process-control-of-precision-granite-tables-from-raw-material-selection-to-finished-products/): Applicable to 00, 000 grade precision granite (mainstream black granite such as Jinan Green), covering the entire process from mine material selection → raw material entry → rough processing → aging treatment → fine processing → grinding and scraping → inspection → packaging and delivery, with key control points for each process to ensure flatness, parallelism, perpendicularity, and internal stress stability.
- [Quality control key points and special precautions for granite base processing](https://jtlcnc.com/2026/09/01/quality-control-key-points-and-special-precautions-for-granite-base-processing/): Applicable to 00, 000 grade precision equipment bases and inspection platforms, primarily using high-quality granite such as Jinan Blue, covering the entire process from raw materials, rough machining, fine machining, post-treatment, to factory dispatch.
- [What are the factors affecting the processing accuracy of granite stone?](https://jtlcnc.com/2026/08/31/what-are-the-factors-affecting-the-processing-accuracy-of-granite-stone/): Divided into six major areas: raw material itself, stress and aging, machining process, grinding process, environmental conditions, and post-transportation/installation.
- [What is the market prospect for granite structural components of high-precision machine tools?](https://jtlcnc.com/2026/08/30/what-is-the-market-prospect-for-granite-structural-components-of-high-precision-machine-tools/): Granite structural components (mainly Jinan Blue) are not ordinary measuring tool plates, but the "precision base" of high-end equipment.
- [How is the constant temperature machining of high-precision machine tool granite structural components achieved?](https://jtlcnc.com/2026/08/29/how-is-the-constant-temperature-machining-of-high-precision-machine-tool-granite-structural-components-achieved/): The thermal expansion coefficient of granite (such as Jinan Blue) is approximately 4.5e-6/℃.
- [What is the splicing process for granite structural components?](https://jtlcnc.com/2026/08/27/what-is-the-splicing-process-for-granite-structural-components/): Application: Used for making ultra-large granite machine beds, platforms, and crossbeams limited by raw block dimensions; the maximum recommended grade for joined components is 00, and joining is strictly prohibited for 000 grade; direct glue application on the working surface joints is not allowed.
- [How to solve the stress problem in the machining of granite structural components for high-precision machine tools](https://jtlcnc.com/2026/08/26/how-to-solve-the-stress-problem-in-the-machining-of-granite-structural-components-for-high-precision-machine-tools/): Granite stress sources are divided into four categories: original geological stress from the mine, sawing/CNC machining stress, shrinkage stress from adhesive used for embedded threaded inserts, and grinding thermal stress.
- [What are the machining difficulties of granite structural components for high-precision machine tools?](https://jtlcnc.com/2026/08/25/what-are-the-machining-difficulties-of-granite-structural-components-for-high-precision-machine-tools/): Granite components for machine tools (beds, crossbeams, worktables) are not just about simple flat grinding.
- [High-Precision Machine Tool Granite Structural Components (Bed, Base, Crossbeam, Worktable)](https://jtlcnc.com/2026/08/24/high-precision-machine-tool-granite-structural-components-bed-base-crossbeam-worktable/): Natural granite (mainly Jinan Green) is the core foundational structural component for ultra-precision machine tools, air-bearing machine tools, CMMs, diamond lathes, and semiconductor testing equipment.
- [What are the precautions in the process of processing granite stone into equipment bases?](https://jtlcnc.com/2026/08/23/what-are-the-precautions-in-the-process-of-processing-granite-stone-into-equipment-bases/): Strictly Prohibit Reversing the Sequence: Drilling, inserting sleeves, and grooving after fine processing will cause stress rebound, leading to precision drift and scrapping.
- [What is the market prospect of granite stone processed into equipment bases?](https://jtlcnc.com/2026/08/22/what-is-the-market-prospect-of-granite-stone-processed-into-equipment-bases/): Granite precision bases rely on high damping vibration reduction, low thermal expansion, non-magnetic properties, and long-term precision stability to gradually replace cast iron in micron-to-nanometer-level precision equipment.
- [Methods for processing granite stone into equipment bases](https://jtlcnc.com/2026/08/22/methods-for-processing-granite-stone-into-equipment-bases/): Core Logic: Material Selection → Sawing Blank → Rough Machining → Stress Relief Aging → Functional Hole and Slot Machining → Embedded Threaded Inserts → Multi-stage Grinding → Manual Fitting and Grinding → Constant Temperature Resting → Final Inspection, high precision (00/000 grade) must be completed in a 20±1℃ constant temperature workshop, with continuous water cooling throughout, and dry cutting or dry grinding is strictly prohibited.
- [How long is the service life of a granite plate with precision grade 000?](https://jtlcnc.com/2026/08/21/how-long-is-the-service-life-of-a-granite-plate-with-precision-grade-000/): Premise: 000 is not a national standard grade, but an indicator from the old national standard GB4987-85; the base material prioritizes Jinan Qinghui Longyan granite.
- [The term "granite plate precision grade 000"](https://jtlcnc.com/2026/08/20/the-term-granite-plate-precision-grade-000/): Is there a Grade 000 for granite surface plates?
- [Stone back-bonding process - The most common stone processing technique](https://jtlcnc.com/2026/08/19/stone-back-bonding-process-the-most-common-stone-processing-technique/): English: Back-bevel bonding, commonly known in the industry as back-bevel or slope bonding, is the mainstream process for splicing large granite/marble slabs.
- [How to choose the appropriate chamfer size to prevent chipping of granite platform edges?](https://jtlcnc.com/2026/08/18/how-to-choose-the-appropriate-chamfer-size-to-prevent-chipping-of-granite-platform-edges/): Granite is highly brittle, and its edges are stress concentration points, making them extremely prone to chipping during bumping, lifting, handling, and installation.
- [Detailed interpretation of how to avoid or reduce large-scale chipping and damage on the edges and corners of granite countertops.](https://jtlcnc.com/2026/08/17/detailed-interpretation-of-how-to-avoid-or-reduce-large-scale-chipping-and-damage-on-the-edges-and-corners-of-granite-countertops/): Granite (such as Jinan Green) has high hardness and high brittleness. Edges and corners are weak points subject to stress concentration.
- [What are the specific factors affecting the precision changes of granite plates?](https://jtlcnc.com/2026/08/15/what-are-the-specific-factors-affecting-the-precision-changes-of-granite-plates/): It is divided into six major categories: raw material factors, production process factors, structural design factors, installation and support factors, usage environment factors, and usage and operation damage, each with quantified impacts, suitable for technical documents and foreign trade bidding.
- [Will the accuracy of a granite plate change over time?](https://jtlcnc.com/2026/08/14/will-the-accuracy-of-a-granite-plate-change-over-time/): However, inferior stone materials, insufficient aging, and improper installation/usage will still cause slow precision shifts; compared to cast iron plates, granite possesses an overwhelming advantage in long-term stability.
- [What are the acceptance standards for granite platforms?](https://jtlcnc.com/2026/08/14/what-are-the-acceptance-standards-for-granite-platforms/): Mandatory Acceptance Environment Conditions: Constant temperature 20±1℃, temperature change rate ≤0.5℃/h, dust-free and vibration-dampened workshop; the plate must be placed in a constant temperature environment for 24 hours for thermal equilibrium before testing.
- [What is the machining process for a high-precision grade 00/000 granite platform?](https://jtlcnc.com/2026/08/13/what-is-the-machining-process-for-a-high-precision-grade-00-000-granite-platform/): Adhering to the national standard GB/T 20428 "Granite Flat Plates", the entire precision machining process must be completed in a dust-free, vibration-dampened workshop at a constant temperature of 20±0.5℃.
- [What are the effects of the processing technology of granite plates on their accuracy and stability?](https://jtlcnc.com/2026/08/12/what-are-the-effects-of-the-processing-technology-of-granite-plates-on-their-accuracy-and-stability/): The initial flatness of a granite platform at the time of delivery is determined by the grinding process, while its long-term stability is determined by the full-process stress control.
- [How to determine if the raw materials for granite platforms meet the requirements?](https://jtlcnc.com/2026/08/11/how-to-determine-if-the-raw-materials-for-granite-platforms-meet-the-requirements/): The later-stage deformation and precision deviation of granite platforms often stem from defects in the stone billets.
- [How to choose a high-precision precision granite table with long-term stability?](https://jtlcnc.com/2026/08/10/how-to-choose-a-high-precision-precision-granite-table-with-long-term-stability/): The long-term precision drift and warping deformation of granite platforms are mostly not caused by insufficient grinding precision, but by the loss of control in five major stages: raw material selection, stress aging, structural design, processing technology, and acceptance inspection.
- [How to choose suitable marble gauges for precision inspection](https://jtlcnc.com/2026/08/09/how-to-choose-suitable-marble-gauges-for-precision-inspection/): The industry term "marble measuring tools" actually refers entirely to natural gabbro granite; cast iron and ordinary marble cannot meet the requirements of micron-level precision inspection.

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- [HOME](https://jtlcnc.com/): Quality advantage We select high-quality natural granite raw materials, which are strictly screened to ensure uniform texture, high hardness and strong stability.

## Products

- [High-precision marble platform granite flat machine inspection workbench Grade 00 measurement irregular custom-made](https://jtlcnc.com/product/high-precision-marble-platform-granite-flat-machine-inspection-workbench-grade-00-measurement-irregular-custom-made/): II. Detailed Explanation of Accuracy Grades (Grade 00 Core) Flatness Tolerance Formula: Tolerance μm = K×(1 d/1000) d = Platform diagonal mm, inspection constant temperature 20±2℃ Grade Coefficient K Accuracy Level Application Scenarios Grade 000 1 Ultra-precision metrology grade Metrology institutes, semiconductor lithography, optical laboratories, ultra-high precision CMM bases Grade 00 2 Mainstream precision industrial Enterprise metrology rooms, mold verification, precision part inspection, CMM reference bases, measuring tool calibration Grade 0 4 Workshop precision inspection Machining quality inspection, tooling verification, conventional precision assembly Grade 1 8 Ordinary marking table Rough machining marking, simple inspection of ordinary parts III. Standard Specifications and Custom Irregular Shapes 1. Regular Standard Plates (Grade 00 In-stock) 300×200, 400×400, 630×400, 800×500, 1000×630, 1200×800, 1500×1000, 2000×1500mm Thickness: Small 50/70mm, Medium 100/130mm, Large ≥200mm (to ensure rigidity and prevent sagging) 2. Custom Irregular Shapes with Full Process (Machined to Order) Functional Slot Machining T-slots, parallel slots, cross slots, recessed slots, drainage slots, fixture positioning slots, with Grade 00 perpendicularity of slot walls guaranteed simultaneously Hole Machining Through holes, countersunk holes, threaded holes (pre-embedded stainless steel threaded sleeves to prevent stripping), locating pin holes, mounting foot holes Irregular External Shapes L-shape, U-shape, stepped surfaces, multi-step, cantilever platforms, circular / fan-shaped, machine tool beds, linear guide bases, CMM machine bases Embedded Accessories Pre-embedded steel sleeves, locating pins, anti-collision metal edging, lifting threads, adjustable support mounting positions Combined Components Granite square, square box, V-blocks, guide rail bases, optical tables, air-float bases
- [Granite gantry frame](https://jtlcnc.com/product/granite-gantry-frame/): Precision Granite Surface Plates & Bases Product Specification Catalog Introduction & Features Shandong JinteLai Precision Machinery Co., Ltd specializes in manufacturing high-precision granite surface plates, bases, and machine components from selected natural granite. Our products are the benchmark for stability, accuracy, and longevity in precision measurement, quality control, and advanced manufacturing. The company has constant temperature processing and inspection conditions, and is equipped with advanced precision electronic inspection instruments, and the production inspection process and product packaging meet the international export standards The company has always adhered to the principle of integrity and quality first, and is committed to meeting customer needs with advanced technology and scientific management, providing customers with reliable quality assurance,-oriented, with first-class quality, reasonable price and the shortest cycle, to provide high-quality products and all-round services for customers. Core Advantages: Ultra-Stable: Negligible thermal expansion, stress-relieved, maintains flatness for decades. Superior Accuracy: Can be calibrated to meet or exceed international Grade 00 standards. Extremely Durable: High hardness (Mohs ≥6.5), wear-resistant, corrosion-proof, and non-magnetic. Low Maintenance: No rust, no need for protective coating. Easy to clean. Cost-Effective: A "once-in-a-lifetime" investment due to its unparalleled durability. Standard Product Line & Specifications 2.1 Granite Surface Plates 【Standard Sizes (Unit: mm)】 Marble flat plate specifications, weight and precision Specifications Length×Width×Height Weight kg 000 grade accuracy μm 00 grade accuracy μm 0 grade accuracy μm 1 grade accuracy μm 300×300×50 19 1.5 3 6 12 400×300×70 25 1.5 3 6 12 400×400×70 48 2 3.5 6.5 13 630×400×100 76 2 3.5 7 14 630×630×100 155 2 4 8 16 800×600×100 156 2 4 8 16 1000×630×130 284 2.5 4.5 9 18 1000×750×150 338 2.5 5 9 18 1000×1000×150 450 2.5 5 10 20 1600×100×0200 963 3 6 12 24 2000×1000×200 1200 3.5 6.5 13 26 1600×1600×300 2312 3.5 6.5 13 26 2000×1600×300 2890 3.5 7 14 28 2500×1600×300 3612 4 8 16 32 3000×2000×500 9030 4.5 9 18 36 4000×2000×500 12040 5.5 11 22 44 6000×2000×700 25284 7.5 15 30 60 Note: Other sizes and special thicknesses can be custom made. 2.2 Granite Machine Components（Customization Services） Custom Dimensions: Any size and thickness available. Special Machining: Through-holes, threaded inserts, recesses, step features, special grooves. Granite Base / Bed Rigid base for CMM, vision systems, and sensitive equipment. Fully customizable (L, W, H, holes, recesses). 3.Technical Data & Standards The precision of granite slab shall refer to the advanced national standards, and the flatness tolerance shall be in accordance with JB/T7975-1999 standard: Class 000=1 × (1+d/1000) um level 00=2 × (1+d/1000) um Level 0=4 × (1+d/1000) um Level 1=8 × (1+d/1000) um (d is diagonal mm) (measurement temperature is generally 20 ± 2 ℃ Quality & service Quality control 100% flatness test before shipment; Warranty 12 months warranty against manufacturing defects (Not including abuse and man-made damage) If any problem occurs with the product during use, we will provide remote guidance via phone or other communication tools, in addition, we will also provide experience daily maintenance and care of the product. 5. Packing & Delivery Standard Packaging: Protected corners, plastic wrapping, enclosed in a robust wooden export crate. Lead Time: Standard sizes: 15-25 working days after order confirmation. Customized products: 25-40 working days, depending on complexity. Shipping:Shanghai / Tianjin / Qingdao / or as per customer request. How to Order or Request a Quote To receive a precise quotation and lead time, please provide the following information: 1). Product specifications or Detailed Dimensions (Length, Width, Height). 2). Required Accuracy Grade (Grade 00, 0, etc.). 3). Quantity. 4). Special Requirements (T-slots, holes, inserts, etc.). 5). Destination Port / Country. Contact Us for Engineering Consultation or Custom Design. --- Disclaimer: Specifications are subject to change without notice. All custom designs require formal drawing approval.
- [High-density granite measuring platform](https://jtlcnc.com/product/high-density-granite-measuring-platform/): Granite precision instrument platform, made of high-quality "Jinan Blue" stone material through mechanical processing and manual grinding. High, no deformation, good stability, long service life, suitable for measurement work in mechanical factories and laboratories. The main mineral composition of "Jinan Blue" granite is hornende, plagioclase, biotite, and a small amount of magnetite, with a black color, precise structure, and after billions of years of aging, uniform, good stability, high strength, and high hardness, which can maintain high precision under heavy load. Advantages: High precision, good stability, and not easy deform, which can guarantee the measurement accuracy at room temperature. Does not rust, resistant to acid and alkali, and does not require special maintenance. wear resistance and long service life. Scratches and bumps on the working surface do not affect the measurement accuracy. There is no magnetization problem. . It can slide smoothly without any drag feeling during measurement. The precision of the granite flat plate is referenced to various advanced national standards, and the flatness tolerance is based: JB/T7975-1999 standard: 000 grade = 1 × (1 d/1000) um;00 grade = 2 × (1 d/1000) um; 0 grade = 4 × (1 d/1000); 1 grade = 8 × (1 d/1000) um (d is the diagonal mm) (measurement temperature is generally 20 ± ℃). 大理石平板规格、重量及精度 规格 长×宽×厚 重量kg 000级精度 μm 00级精度 μm 0级精度 μm 1级精度 μm 300×300×50 19 1.5 3 6 12 400×300×70 25 1.5 3 6 12 400×400×70 48 2 3.5 6.5 13 630×400×100 76 2 3.5 7 14 630×630×100 155 2 4 8 16 800×600×100 156 2 4 8 16 1000×630×130 284 2.5 4.5 9 18 1000×750×150 338 2.5 5 9 18 1000×1000×150 450 2.5 5 10 20 1600×100×0200 963 3 6 12 24 2000×1000×200 1200 3.5 6.5 13 26 1600×1600×300 2312 3.5 6.5 13 26 2000×1600×300 2890 3.5 7 14 28 2500×1600×300 3612 4 8 16 32 3000×2000×500 9030 4.5 9 18 36 4000×2000×500 12040 5.5 11 22 44 6000×2000×700 25284 7.5 15 30 60 Key attributes accuracy Grade 0, Grade 00, Grade 000 place of origin Shandong, China brand name jintelai model number Customized Product name Precision granite platform material Granite warranty 1 years Function measuring,inspection, calibration, and quality control customized support OEM, ODM material Raw Granite Features High hardness, wear resistance Product name Precision granite platform Package Wooden Box MOQ 1pcs Size Customized Application Industrial Automatic Shipping Sea Key Selling Points Low Maintenance Cost COMPARISON OF GRANITE MATERIALS content Jinan Black Indian Black Sesame Black 654 Specific Gravity 3100-3300kg/m3 3200-3300kg/m3 2900-3000 kg/m3 Elastic Modulus 1.27x105 N/mm2 1.29x105 N/mm2 1.27x105 N/mm2 Coefficient of Linear Expansion 4.61x10 -6/℃ 4.61x10 -6/℃ 4.61x10 -6/C Thermal Expansion Coefficient 0.18%/C 0.18%/°C 0.2%/C Water Absorption <0.013% <0.011% <0.013% Rockwell Hardness >70.9 >70.9 >70.9 Radiation Equivalent 0.38uSv/h 0.35uSv/h 0.38uSv/h Dry Compressive Strength 220.1MPa 221.1MPa 218.3MPa Appearance Evenly distributed white specks likesnowflakes (appearing translucent),with a clean and shiny appearanceafter maintenance. Evenly distributed white specks likesnowflakes, with a black and glossybase material. After maintenance,the appearance is clean and shiny. There are evenly distributed whitespecks (non-transparent), larger inpattern compared to Jinan Black.After maintenance, the appearanceis clean but less glossy than JinanBlack. Precision Retention Below 5 micrometers (um) Below 5 micrometers (um) 5-10um Ease of Processing Easy Hard Harder Due to China's environmental policies, the mining of Jinan Black granite has been halted since 2006. After 15years, large-sized jinan Black granite blocks have become scarce, only a few pieces can still be found, and it's nolonger possible to obtain them in large quantities.
- [Precision granite structural base](https://jtlcnc.com/product/precision-granite-structural-base/): Key attributes accuracy Grade 0, Grade 00, Grade 000 place of origin Shandong, China brand name jintelai model number Customized Product name Precision granite platform material Granite warranty 1 years Function measuring,inspection, calibration, and quality control customized support OEM, ODM material Raw Granite Features High hardness, wear resistance Product name Precision granite platform Package Wooden Box MOQ 1pcs Size Customized Application Industrial Automatic Shipping Sea Key Selling Points Low Maintenance Cost
- [High-precision V-block calibration](https://jtlcnc.com/product/high-precision-v-block-calibration/): 规格 Dimension 工作面平面度 Flatness of working surface V型槽对底面平行度 Parallelism between V slot and bottom surface V型槽对底面平行度 Parallelism between V slot and side surface V型槽对两侧面对称度 Symmetry between V slot & two sides V型槽对端面的垂直度 Perpendicularity between V slot & two sides surface V型槽底面的垂直度 Perpendicularity between side surface & end surface 一对V型块对底面的高度差 Height difference of the V slot within a matched pair 精度等级Precision grade（μm） 0级 1级 0级 1级 0级 1级 0级 1级 0级 1级 0级 1级 0级 1级 40×90° 1 2 3 6 3 6 5 10 5 5 3 6 4 6 63×90° 2.5 3 4 8 4 8 8 16 8 8 4 8 5 10 100×90° 2 4 4 8 4 8 8 16 88 8 4 8 5 10 160×90° 2.5 5 5 10 5 10 10 20 10 10 5 10 6 12 200×90° 3.5 7 7 13 7 13 13 25 13 13 7 13 5 15
- [CNC GRANITE BASE](https://jtlcnc.com/product/cnc-granite-base/): Key attributes accuracy Grade 0, Grade 00, Grade 000 place of origin Shandong, China brand name jintelai model number Customized Product name Precision granite platform material Granite warranty 1 years Function measuring,inspection, calibration, and quality control customized support OEM, ODM material Raw Granite Features High hardness, wear resistance Product name Precision granite platform Package Wooden Box MOQ 1pcs Size Customized Application Industrial Automatic Shipping Sea Key Selling Points Low Maintenance Cost
- [GRANITE PLATFORM STANDS](https://jtlcnc.com/product/granite-platform-stands/): Granite Platform Bracket Selection Quick Reference Table Application Scenario Recommended Bracket Type Support Method Additional Requirements Coordinate Measuring (1500×2000mm) Welded Frame Bracket 3 Main + 2 Auxiliary Five-Point Support Adjustable Foot + Spherical Joint + Nylon Pad Laboratory Grade 00 Small Platform Split Column Bracket Three-Point Support Equipped with Vibration Isolation Pad Optical Inspection/Nanometer Measurement Pneumatic Floating Vibration Isolation Bracket Three-Point Positioning + Automatic Leveling Vibration Isolation Rate ＞ 90% Workshop Routine Inspection Simplified Section Steel Frame Bracket Five-Point Support Spray Plastic Anti-Rust
- [Marble equipment base](https://jtlcnc.com/product/marble-equipment-base/): Made from high-quality "Jinan Black" stone through mechanical processing and hand precision grinding. It features high precision, no deformation, excellent stab, and a long service life. We can process various supporting components for users, such as granite bases, columns, crossbeams, and guides for CMMs. We can also process ganite bases, gantries, and slides for various PCB drilling and milling machines, and engraving machines. We process other special-shaped products for users. The perfect combination of granite electronics. Advantages: 1. High precision, excellent stability, and resistance to deformation, ensuring measurement accuracy at room temperature. 2. Rust-proof, acid and alkali reand requires no special maintenance. 3. Excellent wear resistance and long service life. 4. Scratches or bumps on the working surface do not affect measurement accuracy. 5. No magnetization issues. 6. Smooth sliding during measurement with no sticking sensation.
- [High-precision granite cube for rotation and alignment detection](https://jtlcnc.com/product/high-precision-granite-cube-for-rotation-and-alignment-detection/): Key attributes accuracy Grade 0, Grade 00, Grade 000 place of origin Shandong, China brand name jintelai model number Customized Product name Precision granite platform material Granite warranty 1 years Function measuring,inspection, calibration, and quality control customized support OEM, ODM material Raw Granite Features High hardness, wear resistance Product name Precision granite platform Package Wooden Box MOQ 1pcs Size Customized Application Industrial Automatic Shipping Sea Key Selling Points Low Maintenance Cost COMPARISON OF GRANITE MATERIALS content Jinan Black Indian Black Sesame Black 654 Specific Gravity 3100-3300kg/m3 3200-3300kg/m3 2900-3000 kg/m3 Elastic Modulus 1.27x105 N/mm2 1.29x105 N/mm2 1.27x105 N/mm2 Coefficient of Linear Expansion 4.61x10 -6/℃ 4.61x10 -6/℃ 4.61x10 -6/C Thermal Expansion Coefficient 0.18%/C 0.18%/°C 0.2%/C Water Absorption <0.013% <0.011% <0.013% Rockwell Hardness >70.9 >70.9 >70.9 Radiation Equivalent 0.38uSv/h 0.35uSv/h 0.38uSv/h Dry Compressive Strength 220.1MPa 221.1MPa 218.3MPa Appearance Evenly distributed white specks likesnowflakes (appearing translucent),with a clean and shiny appearanceafter maintenance. Evenly distributed white specks likesnowflakes, with a black and glossybase material. After maintenance,the appearance is clean and shiny. There are evenly distributed whitespecks (non-transparent), larger inpattern compared to Jinan Black.After maintenance, the appearanceis clean but less glossy than JinanBlack. Precision Retention Below 5 micrometers (um) Below 5 micrometers (um) 5-10um Ease of Processing Easy Hard Harder Due to China's environmental policies, the mining of Jinan Black granite has been halted since 2006. After 15years, large-sized jinan Black granite blocks have become scarce, only a few pieces can still be found, and it's nolonger possible to obtain them in large quantities.
- [GRANITE PARALLELS](https://jtlcnc.com/product/granite-parallels/): Evenly distributed white specks likesnowflakes (appearing translucent),with a clean and shiny appearanceafter maintenance.
- [00 grade adjustable level support frame adjusting jacking platform base granite slab bottom](https://jtlcnc.com/product/00-grade-adjustable-level-support-frame-adjusting-jacking-platform-base-granite-slab-bottom/): Marble (granite) platform stainless steel bracket technology and selection guide, with structure, material, installation points, that you can directly use it for procurement and on-site deployment.
- [High precision marble mechanical components machine bed base guide](https://jtlcnc.com/product/high-precision-marble-mechanical-components-machine-bed-base-guide/): Our company can process granite base, gantry, sliding plate and other accessories for various PCB drills, milling machines and engraving machines.
- [Marble height gauge measuring seat](https://jtlcnc.com/product/marble-height-gauge-measuring-seat/): For high-precision measurement aspects Material: High-quality natural Jinan greenstone Features: High precision, wear-resistant, corrosion-, and does not rust Description: Customers use it with a thousandth meter and a percent meter Base introduction: The Jiqing brand's comparison stage uses a strictly granite material 'Natural Jinan Greenstone' to make a precise reference measurement tool. It is ideal for the inspection of instruments, precision tools, and mechanical components. Especially the comparison stage, which has been naturally aged for hundreds of millions of years, has a very stable shape and does not need to worry about deformation due to normal temperature differences. Since is a non-metallic material, it has no magnetic reaction and no plastic deformation, and has the advantages of being resistant to acid and alkali, not magnetized, not, and has good wear resistance. Accessories introduction: The rod is made of high-quality 45 steel chrome-plated bar as raw material, and the chuck made of aluminum alloy mold. 规格 （mm） Dimension 立柱尺寸（mm） Size of column 测量座工作面的平面度（ μm） flatness of the working surface of base 测量高度 （mm） measuring range 150×100×40 150xΦ30 2 0~100 200×150×50 300xΦ30 2 0~250 300×200×50 300xΦ30 2 0~250 配合块规用百分表、千分表、电子测头对零件或成品进行相对测量之尺寸检测。
- [High precision granite equipment base](https://jtlcnc.com/product/high-precision-granite-equipment-base/): Evenly distributed white specks likesnowflakes (appearing translucent),with a clean and shiny appearanceafter maintenance.
- [Marble platform guide base](https://jtlcnc.com/product/marble-platform-guide-base/): Installation Requirements for Linear Guides on Marble Platforms In the process of industrial production, marble platforms are type of high-precision measuring reference surface, and their unique physical characteristics give them significant advantages in the field of precision measurement.
- [Anti-vibration Granite Inspection Laboratory Working Table](https://jtlcnc.com/product/anti-vibration-granite-inspection-laboratory-working-table/): Key attributes accuracy Grade 0, Grade 00, Grade 000 place of origin Shandong, China brand name jintelai model number Customized Product name Precision granite platform material Granite warranty 1 years Function measuring,inspection, calibration, and quality control customized support OEM, ODM material Raw Granite Features High hardness, wear resistance Product name Precision granite platform Package Wooden Box MOQ 1pcs Size Customized Application Industrial Automatic Shipping Sea Key Selling Points Low Maintenance Cost
- [Granite flatness measuring table](https://jtlcnc.com/product/granite-flatness-measuring-table/): Granite precision instrument platform, made of high-quality "Jinan Blue" stone material through mechanical processing and manual grinding.
- [Granite 00 grade precision mechanical components bed beam guide](https://jtlcnc.com/product/granite-00-grade-precision-mechanical-components-bed-beam-guide/): Precision granite mechanical components, made of high-quality "Jinan Blue" stone, are processed by machinery and finely ground by hand.
- [Granite Inspection and Measurement Working Platform](https://jtlcnc.com/product/granite-inspection-and-measurement-working-platform/): Granite precision instrument platform, made of high-quality "Jinan Blue" stone material through mechanical processing and manual grinding.
- [High Precision Granite Surface Plate for Measuring Instruments Setup](https://jtlcnc.com/product/high-precision-granite-surface-plate-for-measuring-instruments-setup/): Granite precision instrument platform, made of high-quality "Jinan Qing" stone material through mechanical processing and manual grinding.
- [granite slab grinding inspection line inspection platform](https://jtlcnc.com/product/granite-slab-grinding-inspection-line-inspection-platform/): Our company is a comprehensive stone enterprise integrating research and development, production and sales, mainly producing granite precision measuring tools, testing flat plates, instrument platforms and other stone products.
- [Granite Surface Plate Inspection Table High Precision](https://jtlcnc.com/product/granite-surface-plate-inspection-table-high-precision/)
- [Marble platform 00 grade high precision granite slab grinding inspection line inspection platform granite slab](https://jtlcnc.com/product/marble-platform-00-grade-high-precision-granite-slab-grinding-inspection-line-inspection-platform-granite-slab/): The granite inspection platform is made of high-quality Jinan green stone, which is processed by machinery and finely ground by hand.
- [High precision marble mechanical components machine bed base guide beam threaded gantry drilling processing customization](https://jtlcnc.com/product/high-precision-marble-mechanical-components-machine-bed-base-guide-beam-threaded-gantry-drilling-processing-customization/): Precision granite mechanical components, made of high-quality "Jinan Blue" stone, are processed by machinery and finely ground by hand.
- [Granite machinery equipment base](https://jtlcnc.com/product/granite-machinery-equipment-base/): Precision granite components are made of high-quality Jinan green stone, which is processed by machinery and finely ground by hand.
- [Granite mechanical inspection bench](https://jtlcnc.com/product/granite-mechanical-inspection-bench/): Core Advantages Overview · Consistent precision, enduring unchanged · Key reasons: The stone has undergone natural aging over millions of years completely eliminating internal stress and having a uniform tissue structure.
- [Granite machine base](https://jtlcnc.com/product/granite-machine-base/): 🎯 Core Advantages The advantages of granite mainly stem from its natural and stable physical properties: · Longterm precision and stability · Characteristics: After billions of years of natural aging, the internal stress of the rock has been eliminated, and it hardly deforms.
- [granite surface plate](https://jtlcnc.com/product/granite-surface-plate/): Marble flat plate specifications, weight and precision Specifications Length×Width×Height Weight kg 000 grade accuracy μm 00 grade accuracy μm 0 grade accuracy μm 1 grade accuracy μm 300×300×50 19 1.5 3 6 12 400×300×70 25 1.5 3 6 12 400×400×70 48 2 3.5 6.5 13 630×400×100 76 2 3.5 7 14 630×630×100 155 2 4 8 16 800×600×100 156 2 4 8 16 1000×630×130 284 2.5 4.5 9 18 1000×750×150 338 2.5 5 9 18 1000×1000×150 450 2.5 5 10 20 1600×100×0200 963 3 6 12 24 2000×1000×200 1200 3.5 6.5 13 26 1600×1600×300 2312 3.5 6.5 13 26 2000×1600×300 2890 3.5 7 14 28 2500×1600×300 3612 4 8 16 32 3000×2000×500 9030 4.5 9 18 36 4000×2000×500 12040 5.5 11 22 44 6000×2000×700 25284 7.5 15 30 60
- [Granite high precision platform](https://jtlcnc.com/product/granite-high-precision-platform/): Precision granite mechanical components, made of high-quality "Jinan Blue" stone, are machined and finely ground by hand. High precision no deformation, good stability, and long service life. We can process various granite base columns, beams, and guide rails for three-coordinate measuring machines for users. We can process various granite bases, gantries, and slide plates for printed circuit board drilling, milling, and engraving machines. We can process other irregular products for users.The perfect combination of granite with metal and electronics.
- [Granite square box](https://jtlcnc.com/product/granite-square-box/): Used for checking verticality and parallelism, and can be used as a 90 ° absolute measurement reference.
- [Granite V-shaped frame](https://jtlcnc.com/product/granite-v-shaped-frame/): Used for measuring coaxiality, roundness, symmetry, and runout of rotating parts. Generally, it is supplied in pairs.
- [Granite square ruler](https://jtlcnc.com/product/granite-square-ruler-2/): Used for verticality and parallelism detection, and can be used as a 90 ° absolute measurement reference.
- [Granite square ruler](https://jtlcnc.com/product/granite-square-ruler/): Used for measuring parts, various spindle levels, and angles of various mother machines Granite precision measuring tools are made from high-quality "Jinan green" stone through mechanical processing and manual precision grinding.
- [Granite Parallel Gauge](https://jtlcnc.com/product/granite-parallel-gauge/): Can replace the equal height block and be used to measure the parallelism of parts. Paired supply.
- [Granite ruler](https://jtlcnc.com/product/granite-ruler/): Used for measuring straightness and flatness.
- [Granite comparison platform](https://jtlcnc.com/product/granite-comparison-platform/): Comparison table, also known as marble comparison table, height gauge, gauge seat, measuring seat, dial gauge holder
- [Granite precision mechanical components](https://jtlcnc.com/product/granite-precision-mechanical-components/): Granite precision mechanical components are made of high-quality "Jinan Green" stone through mechanical processing and manual precision grinding.
- [Granite platform bracket (stainless steel square)](https://jtlcnc.com/product/granite-platform-bracket-stainless-steel-square/): Thickened square steel, customized production; All frameworks are supported by three main points, with strong load-bearing capacity and stable support.
- [Green granite testing platform](https://jtlcnc.com/product/green-granite-testing-platform/): The granite precision instrument platform is made of high-quality "Jinan green" stone material through mechanical processing and manual precision grinding.
- [marble platform](https://jtlcnc.com/product/marble-platform/): The granite precision instrument platform is made of high-quality "Jinan green" stone material through mechanical processing and manual precision grinding. High precision, no deformation, good stability, long service life, suitable for measurement work in mechanical factories and laboratories.


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