Main support for ultra-precision diamond turning machines, nanogrinding machines, and 5-axis ultra-precision machines. It adopts integral\/divided granite structures (e.g., T-type, basket-type) to provide micron-level installation benchmarks.
Case: Huacui ultra-precision diamond turning machine uses a natural granite bed basket-type vibration isolation, combined with an air-bearing spindle, achieving \u22641\u03bcm<\/strong> positioning accuracy.<\/li>\n\n\n\n
Air-bearing \/ hydrostatic guideway bases: Granite surfaces are machined with air-bearing holes\/oil cavities, achieving flatness \u22640.5\u03bcm<\/strong> to realize frictionless, high-straightness motion, used in ultra-precision machine tools and Coordinate Measuring Machines (CMMs).
Installation substrates for linear motors\/ball screws, ensuring long-term motion accuracy, suitable for Grade 00 precision requirements.<\/li>\n\n\n\n
Horizontal\/vertical support for gantry-type ultra-precision grinding machines, lithography machines, and optical inspection equipment. High rigidity suppresses crossbeam sagging and vibration, ensuring positional accuracy across large spans.
Case: WENZEL CMM adopts an integral granite gantry table, requiring no special foundation and offering excellent long-term stability.<\/li>\n\n\n\n
Grade 00 granite worktables for EDM machines and optical grinding machines, with flatness \u22641\u03bcm<\/strong>, providing insulation and heat resistance to ensure stable workpiece positioning.
Semiconductor wafer inspection and laser interferometer reference platforms, providing nanometer-level planar benchmarks.<\/li>\n\n\n\n
High-precision measuring tools such as straight edges, square blocks, and V-blocks, used for machine tool guideway calibration and geometric precision inspection, with accuracy reaching Grade 00 (\u22641\u03bcm).
Fixture\/jig substrates for fixing thin-walled\/easily deformed parts, reducing clamping errors.<\/li>\n<\/ol>\n\n\n\n
III. Key Manufacturing Processes and Precision Assurance Precision granite (commonly known as granite) is the core structural material for ultra-precision machine tools. Leveraging four key characteristics\u2014low thermal expansion, high damping, high rigidity, and zero internal stress\u2014it has become the preferred choice for equipment requiring nanometer\/micrometer-level precision. It is widely used in critical components such as beds, bases, guideways, crossbeams, and worktables, supporting…<\/p>","protected":false},"author":1,"featured_media":2677,"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-2674","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\/\u5fae\u4fe1\u56fe\u7247_20260507163407_30_25.png",1010,523,false],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/ru\/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":186,"filter":"raw","cat_ID":35,"category_count":186,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/posts\/2674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/comments?post=2674"}],"version-history":[{"count":2,"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/posts\/2674\/revisions"}],"predecessor-version":[{"id":2679,"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/posts\/2674\/revisions\/2679"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/media\/2677"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/media?parent=2674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/categories?post=2674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/ru\/wp-json\/wp\/v2\/tags?post=2674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Material Selection: Prioritize dense black granites such as Jinan Black and Mount Tai Bliamond, with quartz content \u226540% and water absorption rate \u22640.1%, ensuring uniform and stable material quality.
Processing Flow: Block cutting \u2192 Rough grinding \u2192 Fine grindHand lapping (Grade 00) \u2192 Drilling\/Slotting \u2192 Metal inlaying \u2192 Aging treatment (to eliminate machining stress).
Precision Grades:
Standard Grade Flatness 1\u20133 \u03bcm\/m, suitable for general ultra-precision machine tools;
Precision Grade: Flatness 0.5\u20131 \u03bcm\/m, suitable for diamond turning machi lithography machines;
Ultra-Precision Grade: Flatness \u22640.5 \u03bcm\/m<\/strong>, enabling nanometer-level motion when paired with air bearings.
IV. Industry ApplicatFields
Aerospace: Ultra-precision turning\/grinding of engine blades, gyroscopes, and optical lenses, with precision \u22641 \u03bcm<\/strong>.
Semiconductor: Lithography mane bases, wafer cutting\/inspection platforms, and nanoimprint lithography equipment, with thermal stability suitable for \u00b10.1\u00b0C<\/strong> constant temperature environments.
Optical EngineerinMachining of aspheric lenses, mirrors, and laser devices, with surface roughness Ra \u226410 nm.
Precision Molding: Molds for optical lenses and medical devices,micro-cavity machining, featuring excellent long-term precision retention.
V. Limitations and Solutions
High brittleness and poor impact resistance: Avoid heavy load impacts; add protective structures du design; use in conjunction with damping vibration isolators (e.g., air springs).
High processing difficulty and cost: Suitable for high-value-added, high-precision scenarios; for medium andd components, a composite structure of granite metal inlay can be adopted to balance cost and performance.<\/p>\n\n\n\n![\"\"](\"https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/05\/\u5fae\u4fe1\u56fe\u7247_20260507164159_32_25.png\")
<\/figure>","protected":false},"excerpt":{"rendered":"