{"id":2903,"date":"2026-07-07T14:02:31","date_gmt":"2026-07-07T12:02:31","guid":{"rendered":"https:\/\/www.fries-gmbh.de\/knowledge\/machine-beds-frames\/"},"modified":"2026-07-07T14:02:31","modified_gmt":"2026-07-07T12:02:31","slug":"machine-beds-frames","status":"publish","type":"page","link":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/","title":{"rendered":"Machine Beds and Frames: What Matters in Manufacturing"},"content":{"rendered":"<p class=\"fw-zurueck\"><a href=\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/\">\u2190 Back to the knowledge base<\/a><\/p>\n<article class=\"fw-artikel\">\n<header class=\"fw-kopf\">\n<p class=\"fw-kicker\">Knowledge \u00b7 Typical components<\/p>\n<aside class=\"fw-kurzantwort\">\n<p><strong>In short:<\/strong> Machine beds and frames are the foundation of every machine: they determine stiffness, vibration behaviour and the accuracy of everything mounted on them. In one-off and small-batch production, welded S355 structures are the standard, built in the fixed sequence weld, stress-relieve, mill functional faces. What counts is a torsion-stiff design, sufficient machining allowance and machining the guide and mounting faces in as few set-ups as possible.<\/p>\n<\/aside>\n<\/header>\n<div class=\"fw-inhalt\">\n<h2>What must a machine bed deliver?<\/h2>\n<p>Three things at once. It must be <strong>stiff<\/strong>, so process forces cause no deflection that prints straight into workpiece quality. It must be <strong>vibration-calm<\/strong>, because chatter ruins surfaces and tool life. And it must stay <strong>dimensionally stable<\/strong> over years and temperature swings so guides, drives and attachments keep their position. The same applies to every frame, from special-machine bases to robot cells; only the required tolerances differ.<\/p>\n<h2>Welded or cast: which is right when?<\/h2>\n<p>Grey cast iron damps vibration excellently and pays off in volume production, but demands pattern costs and long lead times. <strong>Welded structures in structural steel<\/strong> (typically S355) are almost always right for one-offs and small batches: no pattern, short delivery, design freedom, easy changes. Design compensates the lower material damping through ribbed box sections and welded-in bulkheads. Below roughly 10 to 20 units per year, casting practically never pays.<\/p>\n<h2>What does the correct process chain look like?<\/h2>\n<p>Always the same, and every shortcut takes revenge: cutting and bending, welding with a planned <a href=\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/welding-distortion\/\">distortion-aware sequence<\/a>, <strong>stress-relief annealing<\/strong> at 550 to 620 \u00b0C (mandatory for beds with guide faces), then machining all functional faces with 3 to 5 mm allowance; the logic is explained under <a href=\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machining-welded-structures\/\">machining welded structures<\/a>. For multi-metre beds the rules of <a href=\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/large-part-machining\/\">large-part machining<\/a> apply on top: a 6 m bed belongs in one set-up on a machine with matching travel.<\/p>\n<h2>Which tolerances are usual on guide and mounting faces?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Typical requirement<\/th>\n<th>Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Flatness of linear-guide faces<\/td>\n<td>a few hundredths per metre, per guide maker<\/td>\n<td>put the number on the drawing<\/td>\n<\/tr>\n<tr>\n<td>Parallelism of two guide planes<\/td>\n<td>hundredths to tenths over length<\/td>\n<td>machine in one set-up<\/td>\n<\/tr>\n<tr>\n<td>General mounting faces<\/td>\n<td>tenths range<\/td>\n<td>usually sufficient, saves cost<\/td>\n<\/tr>\n<tr>\n<td>Thread and hole patterns<\/td>\n<td>\u00b10.1 to \u00b10.2 mm position<\/td>\n<td>dimension from one datum system<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A practical tip: dimension all functional faces from one common datum system matching the first set-up, and demand tight values only where guides or precision components actually sit.<\/p>\n<h2>What belongs in the enquiry?<\/h2>\n<p>Drawing and STEP model, weight, the guide maker\\u2019s mounting specs, required flatness with datums, annealing requirement, coating spec and lifting points. Mentioning the installation site (crane available? door widths?) prevents surprises when a multi-tonne foundation arrives.<\/p>\n<\/div>\n<section class=\"fw-faq\">\n<h2>Frequently asked questions<\/h2>\n<details class=\"fw-faq-item\">\n<summary class=\"fw-faq-frage\">Why must machine beds be stress-relief annealed?<\/summary>\n<div class=\"fw-faq-antwort\">\n<p>Because welding stresses would otherwise release slowly after machining and distort the bed, sometimes weeks later. Annealing at 550 to 620 \u00b0C before milling makes the precision permanent.<\/p>\n<\/div>\n<\/details>\n<details class=\"fw-faq-item\">\n<summary class=\"fw-faq-frage\">Welded bed or cast bed?<\/summary>\n<div class=\"fw-faq-antwort\">\n<p>Cast damps better and pays in series; welded is faster, more flexible and cheaper for one-offs and small batches. With ribbed design, welded beds reach fully sufficient damping for most applications.<\/p>\n<\/div>\n<\/details>\n<details class=\"fw-faq-item\">\n<summary class=\"fw-faq-frage\">How large can welded frames be made?<\/summary>\n<div class=\"fw-faq-antwort\">\n<p>At Fries up to 25 t piece weight and 12 m length in welding, machined up to 8,000 mm of travel in one set-up. Larger units are split with machined, bolted joints.<\/p>\n<\/div>\n<\/details>\n<details class=\"fw-faq-item\">\n<summary class=\"fw-faq-frage\">What does a machine frame cost?<\/summary>\n<div class=\"fw-faq-antwort\">\n<p>Drivers are weight, weld volume, annealing, extent of machined faces and tolerances. A reliable price follows the drawing review; the designer\\u2019s biggest levers are weld volume and limiting tight tolerances to true functional faces.<\/p>\n<\/div>\n<\/details>\n<\/section>\n<footer class=\"fw-cta\">\n<p>Fries Maschinen- und Anlagenbau builds machine beds and frames completely in-house: welded to EN 1090-2 EXC 2, annealed, machined up to 8,000 mm in one set-up, painted and assembled on request. More at <a href=\"https:\/\/www.fries-gmbh.de\/en\/welding\/\">welding at Fries<\/a>.<\/p>\n<\/footer>\n<\/article>\n<p class=\"fw-zurueck\"><a href=\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/\">\u2190 Back to the knowledge base<\/a><\/p>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"headline\":\"Machine Beds and Frames: What Matters in Manufacturing\",\"description\":\"Why machine beds and frames must be stiff, damped and accurate, and how the process chain weld, anneal, mill ensures it.\",\"inLanguage\":\"en\",\"author\":{\"@type\":\"Person\",\"name\":\"Mika Fries\",\"url\":\"https:\/\/www.fries-gmbh.de\/en\/company\/\"},\"publisher\":{\"@type\":\"Organization\",\"name\":\"Fries Maschinen- und Anlagenbau GmbH\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/www.fries-gmbh.de\/wp-content\/uploads\/2022\/02\/Fries-Logo-weiss-1-e1648995713371.png\"}},\"datePublished\":\"2026-07-07\",\"dateModified\":\"2026-07-07\",\"mainEntityOfPage\":\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/\"},{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Why must machine beds be stress-relief annealed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Because welding stresses would otherwise release slowly after machining and distort the bed, sometimes weeks later. Annealing at 550 to 620 \u00b0C before milling makes the precision permanent.\"}},{\"@type\":\"Question\",\"name\":\"Welded bed or cast bed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cast damps better and pays in series; welded is faster, more flexible and cheaper for one-offs and small batches. With ribbed design, welded beds reach fully sufficient damping for most applications.\"}},{\"@type\":\"Question\",\"name\":\"How large can welded frames be made?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"At Fries up to 25 t piece weight and 12 m length in welding, machined up to 8,000 mm of travel in one set-up. Larger units are split with machined, bolted joints.\"}},{\"@type\":\"Question\",\"name\":\"What does a machine frame cost?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Drivers are weight, weld volume, annealing, extent of machined faces and tolerances. A reliable price follows the drawing review; the designer\\\\u2019s biggest levers are weld volume and limiting tight tolerances to true functional faces.\"}}]},{\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.fries-gmbh.de\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Knowledge\",\"item\":\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Machine Beds and Frames: What Matters in Manufacturing\",\"item\":\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/\"}]}]}<\/script><\/p>\n<style>.fw-artikel{max-width:860px;margin:0 auto;line-height:1.65}.fw-kicker{text-transform:uppercase;letter-spacing:.1em;font-size:.8em;opacity:.7}.fw-kurzantwort{border-left:4px solid currentColor;padding:14px 18px;background:rgba(0,0,0,.04);margin:20px 0}.fw-inhalt table{border-collapse:collapse;width:100%;margin:18px 0}.fw-inhalt th,.fw-inhalt td{border:1px solid rgba(0,0,0,.2);padding:8px 10px;text-align:left;vertical-align:top}.fw-faq-item{border-bottom:1px solid rgba(0,0,0,.15);padding:10px 0}.fw-faq-frage{font-weight:600;cursor:pointer}.fw-cta{margin-top:32px;padding:20px;background:rgba(0,0,0,.04)}.fw-zurueck{max-width:860px;margin:0 auto 18px;font-weight:600}.fw-zurueck a{color:#4a7c48;text-decoration:none}h1{font-size:2.2em !important;line-height:1.25 !important}<\/style>\n","protected":false},"excerpt":{"rendered":"<p>\u2190 Back to the knowledge base Knowledge \u00b7 Typical components In short: Machine beds and frames are the foundation of [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":2878,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2903","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Machine Beds and Frames: What Matters in Manufacturing - Fries Maschinen- und Anlagenbau GmbH<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Machine Beds and Frames: What Matters in Manufacturing - Fries Maschinen- und Anlagenbau GmbH\" \/>\n<meta property=\"og:description\" content=\"\u2190 Back to the knowledge base Knowledge \u00b7 Typical components In short: Machine beds and frames are the foundation of [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/\" \/>\n<meta property=\"og:site_name\" content=\"Fries Maschinen- und Anlagenbau GmbH\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pages\/Fries-Maschinen-und-Anlagenbau-GmbH\/303228306853341\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fries-gmbh.de\/wp-content\/uploads\/2022\/02\/AdobeStock_12730836.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"2500\" \/>\n\t<meta property=\"og:image:height\" content=\"2025\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/knowledge\\\/machine-beds-frames\\\/\",\"url\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/knowledge\\\/machine-beds-frames\\\/\",\"name\":\"Machine Beds and Frames: What Matters in Manufacturing - Fries Maschinen- und Anlagenbau GmbH\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/#website\"},\"datePublished\":\"2026-07-07T12:02:31+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/knowledge\\\/machine-beds-frames\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/knowledge\\\/machine-beds-frames\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/knowledge\\\/machine-beds-frames\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Knowledge\",\"item\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/knowledge\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Machine Beds and Frames: What Matters in Manufacturing\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/\",\"name\":\"Fries Maschinen- und Anlagenbau GmbH\",\"description\":\"Fries GmbH\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/#organization\",\"name\":\"Fries Maschinen- und Anlagenbau GmbH\",\"url\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.fries-gmbh.de\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/AdobeStock_12730836.jpeg\",\"contentUrl\":\"https:\\\/\\\/www.fries-gmbh.de\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/AdobeStock_12730836.jpeg\",\"width\":2500,\"height\":2025,\"caption\":\"Fries Maschinen- und Anlagenbau GmbH\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fries-gmbh.de\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/pages\\\/Fries-Maschinen-und-Anlagenbau-GmbH\\\/303228306853341\",\"https:\\\/\\\/www.instagram.com\\\/fries_gmbh\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Machine Beds and Frames: What Matters in Manufacturing - Fries Maschinen- und Anlagenbau GmbH","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/","og_locale":"en_US","og_type":"article","og_title":"Machine Beds and Frames: What Matters in Manufacturing - Fries Maschinen- und Anlagenbau GmbH","og_description":"\u2190 Back to the knowledge base Knowledge \u00b7 Typical components In short: Machine beds and frames are the foundation of [&hellip;]","og_url":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/","og_site_name":"Fries Maschinen- und Anlagenbau GmbH","article_publisher":"https:\/\/www.facebook.com\/pages\/Fries-Maschinen-und-Anlagenbau-GmbH\/303228306853341","og_image":[{"width":2500,"height":2025,"url":"https:\/\/www.fries-gmbh.de\/wp-content\/uploads\/2022\/02\/AdobeStock_12730836.jpeg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/","url":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/","name":"Machine Beds and Frames: What Matters in Manufacturing - Fries Maschinen- und Anlagenbau GmbH","isPartOf":{"@id":"https:\/\/www.fries-gmbh.de\/en\/#website"},"datePublished":"2026-07-07T12:02:31+00:00","breadcrumb":{"@id":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/machine-beds-frames\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/www.fries-gmbh.de\/en\/"},{"@type":"ListItem","position":2,"name":"Knowledge","item":"https:\/\/www.fries-gmbh.de\/en\/knowledge\/"},{"@type":"ListItem","position":3,"name":"Machine Beds and Frames: What Matters in Manufacturing"}]},{"@type":"WebSite","@id":"https:\/\/www.fries-gmbh.de\/en\/#website","url":"https:\/\/www.fries-gmbh.de\/en\/","name":"Fries Maschinen- und Anlagenbau GmbH","description":"Fries GmbH","publisher":{"@id":"https:\/\/www.fries-gmbh.de\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.fries-gmbh.de\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.fries-gmbh.de\/en\/#organization","name":"Fries Maschinen- und Anlagenbau GmbH","url":"https:\/\/www.fries-gmbh.de\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fries-gmbh.de\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.fries-gmbh.de\/wp-content\/uploads\/2022\/02\/AdobeStock_12730836.jpeg","contentUrl":"https:\/\/www.fries-gmbh.de\/wp-content\/uploads\/2022\/02\/AdobeStock_12730836.jpeg","width":2500,"height":2025,"caption":"Fries Maschinen- und Anlagenbau GmbH"},"image":{"@id":"https:\/\/www.fries-gmbh.de\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/pages\/Fries-Maschinen-und-Anlagenbau-GmbH\/303228306853341","https:\/\/www.instagram.com\/fries_gmbh\/"]}]}},"_links":{"self":[{"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/pages\/2903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/comments?post=2903"}],"version-history":[{"count":0,"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/pages\/2903\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/pages\/2878"}],"wp:attachment":[{"href":"https:\/\/www.fries-gmbh.de\/en\/wp-json\/wp\/v2\/media?parent=2903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}