{"id":62597,"date":"2026-06-23T10:31:14","date_gmt":"2026-06-23T08:31:14","guid":{"rendered":"https:\/\/spreitzer.de\/techblog\/magnetic-clamping-basics\/"},"modified":"2026-06-23T10:31:14","modified_gmt":"2026-06-23T08:31:14","slug":"magnetic-clamping-basics","status":"publish","type":"wt_fachwissen","link":"https:\/\/spreitzer.de\/en\/techblog\/magnetic-clamping-basics\/","title":{"rendered":"Magnetic clamping: how magnetic workholding works"},"content":{"rendered":"<div class=\"fw-tldr\" style=\"border-left:4px solid #c8102e;background:#f6f6f6;padding:16px 20px;margin:0 0 28px;border-radius:4px\"><strong>In brief:<\/strong><\/p>\n<ul>\n<li>Magnetic clamping holds <strong>ferromagnetic<\/strong> workpieces over their full surface with low distortion.<\/li>\n<li>Permanent and electro-permanent systems hold even <strong>without power<\/strong>.<\/li>\n<li>All five free sides can be machined in a single set-up.<\/li>\n<\/ul>\n<\/div>\n<h2>How does magnetic clamping work?<\/h2>\n<p>A magnetic chuck generates a magnetic field that pulls ferromagnetic workpieces onto the support surface over their full area. The holding force is distributed evenly \u2014 this reduces point loads and distortion.<\/p>\n<h2>Permanent magnet, electro-permanent magnet, or electromagnet?<\/h2>\n<h3>Permanent magnet<\/h3>\n<p>Holds without any energy supply; the holding force is switched on or off mechanically.<\/p>\n<h3>Electro-permanent<\/h3>\n<p>Is magnetized or demagnetized by a short current pulse and then holds <strong>without continuous current<\/strong> \u2014 securely, even in the event of a power failure.<\/p>\n<h3>Electromagnet<\/h3>\n<p>Requires continuous current to provide the holding force.<\/p>\n<h2>Advantages of magnetic clamping<\/h2>\n<ul>\n<li>free access from five sides<\/li>\n<li>uniform holding force over the full surface<\/li>\n<li>low distortion, fast clamping and release<\/li>\n<\/ul>\n<h2>Requirements<\/h2>\n<p>The workpiece must be ferromagnetic and rest flat on the surface. Material thickness and contact area affect the holding force, since the magnetic flux is conducted through the workpiece.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Magnetic clamping holds ferromagnetic workpieces over their full surface with low distortion \u2014 with free access from 5 sides. Function, types, and requirements.<\/p>\n","protected":false},"author":14,"featured_media":41167,"template":"","meta":[],"wt_wissensthema":[373],"class_list":["post-62597","wt_fachwissen","type-wt_fachwissen","status-publish","has-post-thumbnail","hentry","wt_wissensthema-fixturing-systems"],"_links":{"self":[{"href":"https:\/\/spreitzer.de\/en\/wp-json\/wp\/v2\/wt_fachwissen\/62597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spreitzer.de\/en\/wp-json\/wp\/v2\/wt_fachwissen"}],"about":[{"href":"https:\/\/spreitzer.de\/en\/wp-json\/wp\/v2\/types\/wt_fachwissen"}],"author":[{"embeddable":true,"href":"https:\/\/spreitzer.de\/en\/wp-json\/wp\/v2\/users\/14"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spreitzer.de\/en\/wp-json\/wp\/v2\/media\/41167"}],"wp:attachment":[{"href":"https:\/\/spreitzer.de\/en\/wp-json\/wp\/v2\/media?parent=62597"}],"wp:term":[{"taxonomy":"wt_wissensthema","embeddable":true,"href":"https:\/\/spreitzer.de\/en\/wp-json\/wp\/v2\/wt_wissensthema?post=62597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}