Ultra-high Rigidity and Vibration Damping: Dense natural microcrystalline structure with high elastic modulus and excellent damping properties; vibration damping efficiency is 0% higher than steel, effectively isolating vibrations from motors, pumps, and the ground, eliminating spot drift and positioning errors.
Long-term Dimensional Stability: High hardness (J Black HS70~80), high compressive strength (245N\/mm\u00b2 ), and water absorption rate <0.13%; rust-proof, creep-, and resistant to cutting fluids\/moisture, maintaining original flatness for ten years with extremely low maintenance costs.
Precision Machining Adaptability: Capable of being machined to micrometerlevel flatness (\u22641\u03bcm\/m), high-precision mounting holes\/threads\/vacuum grooves, meeting the stringent installation requirements of linear motors, grating scales, and optical mirror.<\/p>\n\n\n\n
II. Typical Applications in Laser Equipment<\/p>\n\n\n\n
- \n
- High-Precision Laser Cutting\/Marking Machine Bases and Gantries<\/li>\n<\/ol>\n\n\n\n
Fiber\/CO\u2082 Laser Cutting Machines (e.., IPG LaserCube): The entire machine base gantry beam use Jinan Black\/Taishan Black granite, ensuring positioning accuracy of \u00b11\u03bcm and straightness \u2264.5\u03bcm\/m under high-speed motion.
Large-format Laser Marking Machines: Granite platforms support workpieces and suppress vibrations, ensuring uniform lines and sharp edges during-speed marking at 2000mm\/s.<\/p>\n\n\n\n- \n
- Semiconductor\/Microelectronics Laser Micromachining Platforms<\/li>\n<\/ol>\n\n\n\n
Lithography Machines (EUV\/ArF),fer Dicing, ITO Etching: Granite optical bases\/platforms support lasers, beam expanders, and focusing lenses, achieving nanometer-level (\u226450nm) positioning to ensure chip yield.
Picosecond\/Femtosecond Laser Systems: Ultra-low CTE and high vibration isolation meet the micrometer-level machining requirements for micro-holes in medical and semiconductor slotting.<\/p>\n\n\n\n- \n
- Laser Engraving\/Deep Engraving Machine Workbenches<\/li>\n<\/ol>\n\n\n\n
Stone (Granite\/Marble) Laser Engraving: Granite workbenches are and stable, compatible with CO\u2082 (100W ) \/ fiber lasers, achieving 0.025mm precision deep engraving and high-contrast marking. Granite laser machine workbench.
Hardware\/Mold Laser Marking: Granite platforms are anti-magnetic and wear-resistant, suitable for high-precision positioning of large batches of workpieces and long- stable production.<\/p>\n\n\n\n- \n
- Laser Inspection\/Measurement Equipment Reference Platforms<\/li>\n<\/ol>\n\n\n\n
Laser Interferometers, Profilometers, 3D Scanners: Granite reference platforms provide a stable reference with flatness0.5\u03bcm\/m, ensuring accurate and repeatable inspection data.<\/p>\n\n\n\n
III. Mainstream Material Selection (Commonly used in the laser industry)<\/p>\n\n\n\n
Jinan Green (Shandong): CTE \u2248 3.5 \u00d7 10\u207b\u2076\/\u00b0C, high hardness, uniform black spots, preferred for high-end laser equipment bases \/ gantries.
Taishan Green (Shandong): Performance close to Jinan Green, high cost-performance ratio, used for medium and large laser cutting machines \/ engraving machines.
Indian Black \/ South African Black: Uniform color, good polishability, suitable for laser marking machine worktables \/ decorative optical platforms.<\/p>\n\n\n\nIV. Comparison with Traditional Materials (Steel \/ Cast Iron \/ Aluminum Alloy)<\/p>\n\n\n\n
Performance Granite Steel \/ Cast Iron Aluminum Alloy
Coefficient of Thermal Expansion Extremely low (1\/3 of steel) High
Vibration Damping Optimal (high damping) Average Poor
Rigidity \/ Stability Extremely high (no deformation) Prone to creep \/ rust one to deformation
Accuracy Retention Stable for a decade (\u03bcm level) Decays in 1-2 years Short-term decay
Overall Cost Medium- (low long-term maintenance) Low (short-term) Medium<\/p>\n\n\n\nV. Application Trends<\/p>\n\n\n\n
High Precision: Picosecond \/ femtosecond lasers and semiconductor EUV lithography drive the upgrade of granite to nanometer-level stability.
Large-scale: 6m \u00d7 3m ultra-large format laser equipment adopts monolithic granite bases to reduce splicing errors.
Functional Integration: Granite platforms integrated with vacuum suction, anti-static, and cooling channels, adapted for automated production lines.<\/p>\n\n\n\n![\"\"](\"https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/05\/20260525-091128.png\")
<\/figure>","protected":false},"excerpt":{"rendered":"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). It is widely used in bases, gantries, optical, and precision tooling, supporting nanometer-level stability and micrometer-level machining accuracy. I. Core Material Advantages…<\/p>","protected":false},"author":1,"featured_media":2805,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_analysis_target_kw":"","_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-2804","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\/05\/20260525-091128.png",400,400,false],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/fr\/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":236,"filter":"raw","cat_ID":35,"category_count":236,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/comments?post=2804"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2804\/revisions"}],"predecessor-version":[{"id":2806,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2804\/revisions\/2806"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media\/2805"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media?parent=2804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/categories?post=2804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/tags?post=2804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- Laser Inspection\/Measurement Equipment Reference Platforms<\/li>\n<\/ol>\n\n\n\n
- Laser Engraving\/Deep Engraving Machine Workbenches<\/li>\n<\/ol>\n\n\n\n
- Semiconductor\/Microelectronics Laser Micromachining Platforms<\/li>\n<\/ol>\n\n\n\n