{"id":1898,"date":"2026-02-24T09:33:23","date_gmt":"2026-02-24T01:33:23","guid":{"rendered":"https:\/\/jtlcnc.com\/?p=1898"},"modified":"2026-02-24T09:33:25","modified_gmt":"2026-02-24T01:33:25","slug":"air-bearing-granite-platform-working-principle-and-technical-features-explained","status":"publish","type":"post","link":"https:\/\/jtlcnc.com\/fr\/2026\/02\/24\/air-bearing-granite-platform-working-principle-and-technical-features-explained\/","title":{"rendered":"Plate-forme en granit sur coussin d'air : Principe de fonctionnement et caract\u00e9ristiques techniques"},"content":{"rendered":"<p>Quels sont les avantages des plates-formes flottantes en marbre ?<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ultra-high stability and shock-absorbing performance<br>Mar air-float platforms are equipped with <strong>natural granite or artificial marble bases<\/strong>, featuring an extremely low thermal expansion coefficient and excellent shock-absorbing performance. Compared to traditional metal platforms marble bases effectively absorb high-frequency vibrations, ensuring absolute stability for equipment during micrometer or even nanometer-level operations.<\/li>\n\n\n\n<li>Zero-friction air-float<br>The platform is equipped with <strong>high-precision air bearings<\/strong>, which use compressed air to form a uniform air film, achieving **zero-friction, wear-free motion. This technology not only significantly extends the lifespan of equipment but also eliminates the return error and stick-slip effect caused by traditional mechanical slides, making the motion smoother and more precise<\/li>\n\n\n\n<li>Nanometer-level positioning accuracy<br>Combined with high-resolution linear motors or servo drive systems, the Bellkin marble air-float platform can achieve <strong>-micrometer or even nanometer-level repeat positioning accuracy<\/strong>, meeting the stringent requirements of the semiconductor lithography, ultra-precision machining, and optical detection industries.<\/li>\n\n\n\n<li>Modular design for flexible adaptation<br>The platform supports <strong>multi-axis linkage<\/strong> and can be customized into single-axis, dual-axis, or multi-axis systems according to customer needs. It is also compatible with various sensors, optical components, and automation equipment, easily integrating into existing production lines or R&amp;D systems.<\/li>\n\n\n\n<li>What is an Airearing Granite Platform?<br>An air bearing granite platform is a high-precision motion control system that employs natural granite or artificial marble as the base and integrates air bearings (air-ating guides) to achieve frictionless, highly stable precision motion. It is widely used in semiconductor manufacturing, optical inspection, precision measurement, micro-nano processing, and other fields It is one of the core components of high-end equipment such as lithography machines, three-coordinate measuring machines, and laser processing equipment.<\/li>\n\n\n\n<li>Core Components1. Granite\/Marble Base<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Made of high-stability natural granite or artificial marble, it has a <strong>low coefficient of thermal expansion, high rigidity, strong shock resistance<\/strong>, ensuring the platform is not affected by temperature changes and external vibrations.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Air Bearings (Air-Floating Guides)<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Form amicro-sized air film** between the moving parts and the base through compressed air, achieving <strong>zero friction and no wear<\/strong> suspension motion.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Drive System<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Typically uses <strong>linear motors<\/strong> or <strong>high-precision servo motors<\/strong> to ensure nanometer-level positioning accuracy.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Control System<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Paired with high-resolution enc or laser interferometers, it achieves closed-loop control, ensuring motion accuracy and repeatable positioning.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Working Principle<br>The core technology of the air-ating granite platform lies in the air bearings (air-floating technology), and its working principle is as follows:<\/li>\n\n\n\n<li>Compressed Air Supply<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>An external air (such as an oil-free air compressor) provides <strong>stable, clean compressed air<\/strong> (typically at a pressure of 0.3~0.6 MPa).<br>. Air Film Formation<\/li>\n\n\n\n<li>Compressed air enters the air bearings through precision throttle holes, forming a <strong>uniform micro-sized air film (usually 5~20 \u03bc)<\/strong> between the moving parts (such as the slide table) and the granite base, allowing the moving parts to &#8220;float&#8221; above the base.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Zero Friction Motion- Due to the presence of the air film, there is <strong>no physical contact<\/strong> between the moving parts and the base, eliminating the friction, wear, and crawling (stick-ip effect) of traditional mechanical guides, making the motion smoother and more accurate.<\/li>\n\n\n\n<li>High-Precision Positioning<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Combined with linear motors or servo drives and-resolution feedback systems (such as grating scales or laser interferometers), it can achieve <strong>nanometer (nm) or sub-micrometer (0.1 \u03bcm)<\/strong> accuracy.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Quels sont les avantages des plates-formes flottantes en marbre ?<\/p>","protected":false},"author":1,"featured_media":1901,"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-1898","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\/02\/\u5fae\u4fe1\u56fe\u7247_20260224093130_7_11-1024x685.jpg",1024,685,true],"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":121,"filter":"raw","cat_ID":35,"category_count":121,"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\/1898","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=1898"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/1898\/revisions"}],"predecessor-version":[{"id":1902,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/1898\/revisions\/1902"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media\/1901"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media?parent=1898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/categories?post=1898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/tags?post=1898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}