Thermal Stability (Most Critical)
lity granite has a thermal expansion coefficient of \u22640.8\u20133\u00d710\u207b\u2076\/\u2103<\/strong> (only 1\/3\u20131\/4 that of steel).
idden Value: Minimal dimensional deformation during temperature fluctuations. For example, with a temperature difference of 5\u2103, a 1m length deforms by nly 0.001\u03bcm, far below the 0.003\u03bcm of ordinary materials, avoiding datum drift caused by thermal expansion and contraction.
Precision Impact: The instrument maintains micron-level measurementistency even under workshop\/laboratory temperature fluctuations.
Structural Stability (No Internal Stress)
High-quality granite has undergone hundreds of millions of years of geological action, with internal stress ful eliminating the need for artificial aging treatment.
Hidden Value: No warping or deformation during long-term use; 5-year precision drift is **\u22640.al typically \u22651\u03bcm).
Precision Impact: The instrument’s datum surface remains stable long-term, extending calibration cycles from half a year to 2 years, significantly reducing maintenance costs acision risks.
Density and Uniformity
Density *\u22652.7g\/cm\u00b3<\/em>*, with a dense and uniform crystal structure.
Hidden Value: High rigidity and resistance to deformatiotion damping capability is 40% better than cast iron.
Precision Impact: Reduces errors caused by external vibrations and self-motion, improving dynamic measurement stability.<\/li>\n\n\n\n
High-precision machining is a major component of the price and directly determines the instrument’s geometric precision.
Precision Grades and Processes
Fdinary Grade B to metrological Grade AA, prices increase exponentially.
Hidden Value: Flatness\/parallelism\/perpendicularity reaches 0.1\u20131\u03bcm\/m, with sce roughness Ra\u22640.02\u03bcm.
Precision Impact: As the datum platform\/bed for CMMs, lithography machines, and inspection equipment, it directly determines te precision of measurement and processing.
Constant Temperature and Humidity Machining Environment
High-priced products undergo final grinding in workshops with a constant temperature of **\u00b10.Hidden Value: Eliminates thermal deformation during machining, ensuring final precision and consistency with factory specifications.
Precision Impact: No secondary precision adjustments are required after installation; the instrument reaches precision immeupon startup.<\/li>\n\n\n\n
The hidden value of high-priced granite lies in its non-decaying precision during lose, reducing overall costs.
High Hardness and Wear Resistance
Mohs hardness 6\u20137, with wear of \u22640.3\u03bcm<\/strong> over 1ears, and no metal fatigue.
Hidden Value: Surface precision remains almost unchanged during long-term high-frequency use.
Precision Impact: The instrument does not require replacement of datum componets for 10\u201320 years, avoiding precision degradation caused by wear.
Corrosion Resistance and Maintenance-Free
Does not rust, is non-conductive, and is resistant to acids and alkHidden Value: No need for rust prevention or lubrication; maintenance costs are reduced to 1\/3 that of metal.
Precision Impact: Reduces disassembly and assembly errors caused by maintenance, maintaining long-term precision stability. <\/li>\n<\/ol>\n\n\n\n
![\"\"](\"https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/02\/9.jpg\")
<\/figure>\n\n\n\nII. Specific Impact Comparison of Price Differences on Instrument Accuracy
\u0627\u0644\u062c\u062f\u0648\u0644
Dimension Low-cost Ordinary Granite High-cost Premium Precisionanite Impact on Instrument Accuracy
Coefficient of Thermal Expansion 3\u20135\u00d710\u207b\u2076\/\u2103 0.8\u20132\u00d710\u207b\u2076\/\u2103 Error caused bye difference reduced by 50%\u201380%
Long-term Precision Drift \u22651\u03bcm in 5 years \u22640.2\u03bcm in 5 yeark stability improved by 5 times
Vibration Damping Ordinary 40% better than cast iron Dynamic measurement error reduced by 30%
Surface oughness Ra\u22650.1\u03bcm Ra\u22640.02\u03bcm Air-bearing \/ sliding friction error significantly reduced
Service Life 8\u20130 years 15\u201330 years Precision retention cycle extended by 1\u20132 times
Maintenance Cost High (10%\u201315% annually\u20135% annually) Long-term precision assurance cost reduced by 60%.<\/p>\n\n\n\n
III. Quantified Returns of Hidden Value (Regarding Precision and Cost) IV. ConclusPrice \u2260 Cost, Hidden Value = Precision Assurance The hidden value of granite prices lies in the fact that through three dimensions\u2014material stability, machininecision, and long-term reliability\u2014it 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. I. Core Hidden Value Behind the Price (Directly Affects Precision)…<\/p>","protected":false},"author":1,"featured_media":2200,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[35],"tags":[],"class_list":["post-2197","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"taxonomy_info":{"category":[{"value":35,"label":"NEWS"}]},"featured_image_src_large":["https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/03\/\u5fae\u4fe1\u56fe\u7247_20230405105854-633x1024.jpg",633,1024,true],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/ar\/author\/jtlcnc\/"},"comment_info":0,"category_info":[{"term_id":35,"name":"NEWS","slug":"news","term_group":0,"term_taxonomy_id":35,"taxonomy":"category","description":"","parent":0,"count":119,"filter":"raw","cat_ID":35,"category_count":119,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/2197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/comments?post=2197"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/2197\/revisions"}],"predecessor-version":[{"id":2201,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/2197\/revisions\/2201"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/media\/2200"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/media?parent=2197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/categories?post=2197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/tags?post=2197"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Precision Returns
Measurement \/ machining accuracy ioved from \u00b10.05mm\/m to \u00b10.03mm\/m<\/strong>.
Value transmission error reduced by 40%, defect rate droppe from 5%\u201310% to 1%\u20133%.
Cost Returns
Equipment life extended from 10 years to 20 years, annual depreciation cost reduced by 50%.tenance cost reduced from 80,000\/year to 15,000\/year, total life cycle cost reduced by 45%.<\/p>\n\n\n\n
The high price of granite is essentially paying for material stability, machining precision, and long-term reliability. These hidden values directly determine the instrumentark accuracy, anti-interference capability, and long-term precision retention, serving as the core foundation for precision instruments to achieve stable measurements at the micron\/nanometer level.
In of precision instruments, the short-term cost advantage of low-cost granite is offset by long-term precision drift, high maintenance costs, and frequent calibration; whereas the hidden value of high-cost pree ultimately translates into lower total life cycle costs and higher precision assurance.<\/p>\n\n\n\n![\"\"](\"https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/01\/\u82b1\u5c97\u5ca9\u6784\u4ef6-22-1024x768.jpg\")
<\/figure>","protected":false},"excerpt":{"rendered":"