Granite Carving Machine Base – Precision Carving Machine Base
Marble platforms are precision reference measuring tools made of natural stone materials. They serve as ideal reference surfaces for the inspection of instruments, precision tools, and mechanical parts, especially in high-precision measurement applications. Granite is sourced from underground rock strata and has undergone natural aging over hundreds of millions of years, resulting in extremely stable form; there is no need to worry about deformation caused by conventional temperature diff The granite material, selected through strict physical testing, features fine crystallization and a hard texture. Since granite is a non-metallic material, it exhibits no magnetic reaction and undergoe deformation. Its high hardness ensures excellent precision retention. In use, even if the stone tool is struck by heavy objects, at most a few particles of stone chips will fall o Superior to precision measuring reference parts made of high-quality cast iron and steel, it achieves high and stable precision. For example, the ’00’ grade granite fla plate (1000×630mm) produced by our factory can maintain its original precision unchanged even after being placed for a year.
Characteristics and Advantages
- The he precision carving machine base [1] has undergone long-term natural aging, resulting in a uniform structure, extremely small linear expansion coefficient, and complete elimination of internal stress, ensuring noormation and high precision.
- Good rigidity, high hardness, and strong wear resistance.
- Resistant to erosion by acid and alkali liquids, does not rust,uires no oiling, does not easily adhere to dust, and is easy to maintain with a long service life.
- Does not develop scratches, is not restricted by constant temperature conons, and can maintain measurement precision at room temperature.
- Non-magnetic, allows smooth movement during measurement without stickiness, is unaffected by humidity, and has a well-defined plane.
Physicaroperties of Carving Machine Components
Specific Gravity: 2970-3070kg/m3
Compressive Strengt 2500-2600kg/cm3
Elastic Modulus: 1.27-1.47×106N/mm2
Water Absorption te: 0.13%
Shore Hardness: HS70 or above
PINGTAIJIDI.COM is a professional manufacturer of granite precision measuring plates and granite measuring tools. We specialize in the productiand sales of granite measuring tools, plates, plate stands, right angle rulers, V-blocks, parallel rulers, straight rulers, flat rulers, square rulers, square boxes, and er series of products.
Granite precision measuring tools and instrument platforms are made from high-quality “Jinan Black” stone material through mechanical processing and manual fine grinding. They feature a lack luster, precise structure, uniform texture, good stability, high strength, and high hardness. They can maintain high precision under heavy loads and general temperature conditions, and possess advantages such as rus resistance, acid and alkali resistance, wear resistance, non-magnetism, and deformation resistance. They are suitable for measuring tools in mechanical factories.
Physical Properties of Carving Machine ts / Granite
Specific Gravity: 2970—3070kg/m3
Compressive Strength: 245—254N
Elastic Modulus: 1.27—1.47N/mm2
Linear Expansion Coefficient: 4.6×10—6/℃
Wateorption Rate: 0.13%
Shore Hardness: Hs70 or above
Flatness Tolerance according to JB/T7975-199 Standard
000 Grade = 1×(1 d/1000) μm
00 Grade = ×(1 d/1000) μm
0 Grade = 4×(1 d/1000) μm
1 Grade = ×(1 d/1000) μm
(d is the diagonal in mm)
(Measurement temperature is gene
