{"id":2868,"date":"2026-06-04T11:21:10","date_gmt":"2026-06-04T03:21:10","guid":{"rendered":"https:\/\/jtlcnc.com\/?p=2868"},"modified":"2026-06-04T11:31:42","modified_gmt":"2026-06-04T03:31:42","slug":"precision-specification-of-granite-air-flotation-platform","status":"publish","type":"post","link":"https:\/\/jtlcnc.com\/es\/2026\/06\/04\/precision-specification-of-granite-air-flotation-platform\/","title":{"rendered":"Especificaciones de precisi\u00f3n de la plataforma de flotaci\u00f3n por aire para granito"},"content":{"rendered":"

Applicable Standards: GB\/T20428, ISO8512-2, DIN876, ISO230-1; Test Ambient: 20\u2103\u00b11\u2103, RH40%~60%, Vibration Grade VC-E, Clean Dust-free Environment Part 1: Granite Base Geometric Precision (Benchmark Surface) Precision Grade Flatness Tolerance(\u03bcm per meter) Surface Roughness Ra Adjacent Surface Squareness Typical Application Grade 000 (Ultra-precision) \u22641.0 \u22640.05\u03bcm \u22641.5\u03bcm\/m Semiconductor, Lithography, Nano Inspection Stage Grade 00 (High Precision) \u22642.0 \u22640.10\u03bcm \u22643.0\u03bcm\/m CMM Base, Optical Inspection Equipment Grade 0 (Industrial Precision) \u22644.0 \u22640.20\u03bcm \u22646.0\u03bcm\/m Precision Machining & Vision Inspection Grade 1 (General Industrial) \u22648.0 \u22640.40\u03bcm \u226412\u03bcm\/m Training Bench, Ordinary Automation Fixture Flatness Calculation Formula: Tolerance = Coefficient \u00d7 \u221a(L\u00d7W); Coefficient:000=0.003,00=0.006,0=0.012,1=0.024 (Unit:\u03bcm) Additional Base Material & Machining Requirement 1. Material: Jinan Black Granite; Linear Expansion Coefficient \u22644.6\u00d710\u207b\u2076\/\u2103, Water Absorption\uff1c0.13%, Shore Hardness HS\u2265702. Guide Mounting Straightness: Grade000 \u22640.8\u03bcm\/m; Grade00 \u22641.6\u03bcm\/m3. Overall Level after Levelling Foot Adjustment: \u22642\u03bcm\/1000mm4. Thread Hole Position Tolerance:000\u2264\u00b10.02mm;00\u2264\u00b10.05mm; Counterbore Parallelism \u22642\u03bcm\/100mm Part 2: Air Bearing Motion Precision (Air Film & Drive System) 1. Positioning Accuracy (Full Travel Range) – Nano Grade(Base 000): \u00b10.1~\u00b10.3\u03bcm- Sub-micron Grade(Base 00): \u00b10.3~\u00b11.0\u03bcm- Micron Grade(Base 0\/1): \u00b11.0~\u00b13.0\u03bcm 2. Repeat Positioning Accuracy (3\u03c3 Statistical Value) – Ultra-precision: \u2264\u00b10.05~\u00b10.1\u03bcm- High-precision: \u2264\u00b10.2\u03bcm- General Industrial: \u2264\u00b10.5~\u00b11.0\u03bcm 3. Straightness of Single Axis Full Stroke – Grade000: \u22640.5\u03bcm\/1000mm- Grade00: \u22641.2\u03bcm\/1000mm- Grade0: \u22643.0\u03bcm\/1000mm 4. Air Film Core Parameter Standard air film thickness: 10~15\u03bcm, Air film stiffness \u2265120N\/\u03bcm; No air hammer & crawling phenomenon, zero mechanical contact friction 5. X\/Y Orthogonality (Multi-axis Platform) Grade000 \u22641 arcsec; Grade00 \u22643 arcsec; Grade0 \u22648 arcsec Part3 Application Grade Matching Table 1. Semiconductor\/Lithography: Grade000 Base + Position \u00b10.2\u03bcm, Repeat \u22640.1\u03bcm2. CMM\/High-end Vision: Grade00 Base + Position \u00b10.5\u03bcm, Repeat \u22640.2\u03bcm3. Precision Machining Inspection: Grade0 Base + Position \u00b11.5\u03bcm, Repeat \u22640.6\u03bcm4. Teaching & Ordinary Fixture: Grade1 Base + Position \u00b13.0\u03bcm Part4 Acceptance & Inspection Condition 1. Pre-test Stabilization: Place platform in constant-temperature room for \u226572h to release internal stone stress before detection2. Inspection Instruments: Laser Interferometer, White-light Roughness Tester, Electronic Precision Level, Squareness Calibrator3. Compliance Code: GB\/T20428, ISO8512-2, DIN876, ISO230-1<\/p>\n\n\n\n

\"\"<\/figure>","protected":false},"excerpt":{"rendered":"

Normas aplicables: GB\/T 20428, ISO 8512-2, DIN 876, ISO 230-1; Condiciones ambientales de ensayo: 20 \u2103 \u00b1 1 \u2103, HR 40% ~ 60%, grado de vibraci\u00f3n VC-E, entorno limpio y libre de polvo. Parte 1: Precisi\u00f3n geom\u00e9trica de la base de granito (superficie de referencia) Grado de precisi\u00f3n Tolerancia de planitud (\u03bcm por metro) Rugosidad superficial Ra Perpendicularidad de las superficies adyacentes Grado de aplicaci\u00f3n t\u00edpico 000 (ultraprecisi\u00f3n) \u22641,0 \u22640,05 \u03bcm \u22641,5 \u03bcm\/m Semiconductores, litograf\u00eda, platina de inspecci\u00f3n nanom\u00e9trica Grado 00 (alta precisi\u00f3n) \u22642,0 \u22640,10 \u03bcm\u2026<\/p>","protected":false},"author":1,"featured_media":2871,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_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-2868","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\/06\/20260602-084635.png",800,400,false],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/es\/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":311,"filter":"raw","cat_ID":35,"category_count":311,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/comments?post=2868"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2868\/revisions"}],"predecessor-version":[{"id":2870,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2868\/revisions\/2870"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/media\/2871"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/media?parent=2868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/categories?post=2868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/tags?post=2868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}