<style type="text/css">a[data-mtli~="mtli_filesize21953kB"]:after {content:" (219.53 kB)"}</style>{"id":4593,"date":"2017-11-04T11:25:00","date_gmt":"2017-11-04T10:25:00","guid":{"rendered":"https:\/\/lechner-net.de\/products\/4-roll-round-bending-machines\/lechner-series-4\/"},"modified":"2022-09-01T15:07:39","modified_gmt":"2022-09-01T13:07:39","slug":"lechner-series-4","status":"publish","type":"page","link":"https:\/\/lechner-net.de\/en\/products\/4-roll-round-bending-machines\/lechner-series-4\/","title":{"rendered":"LECHNER Series 4"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-7gaule-a7fb54da14b96e2901a1cb63c197c28e\">\n.flex_column.av-7gaule-a7fb54da14b96e2901a1cb63c197c28e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-7gaule-a7fb54da14b96e2901a1cb63c197c28e av_three_fourth  avia-builder-el-0  el_before_av_one_fourth  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-kuzcd4nc-c2da01b70ec35efebcf78820656d1de8 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1>4-roll round bending machines<\/h1>\n<h2>LECHNER Series 4<\/h2>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-sub-av-kuzcix0r-e54e0e0071c440996de4b28917933dc8\">\n.av-hotspot-image-container .av-image-hotspot.av-kuzchcsj-30a12881b05684efd48d90d4306b98c7{\ntop:46.2%;\nleft:17.8%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzchcsj-30a12881b05684efd48d90d4306b98c7 .av-image-hotspot_inner{\nbackground-color:#861626;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzchcsj-30a12881b05684efd48d90d4306b98c7 .av-image-hotspot-pulse{\nbackground-color:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzchxyj-6ef71deed1968f48c84afa1151c03661{\ntop:35.9%;\nleft:48.1%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzchxyj-6ef71deed1968f48c84afa1151c03661 .av-image-hotspot_inner{\nbackground-color:#861626;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzchxyj-6ef71deed1968f48c84afa1151c03661 .av-image-hotspot-pulse{\nbackground-color:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzci6r9-672e40cf23992c3c68a4198a31be1ba6{\ntop:41.4%;\nleft:52%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzci6r9-672e40cf23992c3c68a4198a31be1ba6 .av-image-hotspot_inner{\nbackground-color:#861626;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzci6r9-672e40cf23992c3c68a4198a31be1ba6 .av-image-hotspot-pulse{\nbackground-color:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzciati-6dd81842866dcc623bff0eb9053d1bfb{\ntop:52.6%;\nleft:68.4%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzciati-6dd81842866dcc623bff0eb9053d1bfb .av-image-hotspot_inner{\nbackground-color:#861626;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzciati-6dd81842866dcc623bff0eb9053d1bfb .av-image-hotspot-pulse{\nbackground-color:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzcilhj-17c0a5f2e82ff16c0aea1e4897bd35a3{\ntop:28.2%;\nleft:86.1%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzcilhj-17c0a5f2e82ff16c0aea1e4897bd35a3 .av-image-hotspot_inner{\nbackground-color:#861626;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-kuzcilhj-17c0a5f2e82ff16c0aea1e4897bd35a3 .av-image-hotspot-pulse{\nbackground-color:#ffffff;\n}\n<\/style>\n<div  class='av-hotspot-image-container av-kuzcix0r-e54e0e0071c440996de4b28917933dc8  avia-builder-el-2  el_after_av_textblock  avia-builder-el-last  av-hotspot-numbered av-mobile-fallback-active  av-non-fullwidth-hotspot-image'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class='av-hotspot-container'><div class='av-hotspot-container-inner-cell'><div class='av-hotspot-container-inner-wrap'><div class='av-image-hotspot av-kuzchcsj-30a12881b05684efd48d90d4306b98c7 av-image-hotspot-1 ' data-avia-tooltip-position='top' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-large-width av-tt-pos-above av-tt-align-left  av-mobile-fallback-active  transparent_dark av-tt-hotspot' data-avia-tooltip='&lt;h5&gt;4-roller rotary drive&lt;\/h5&gt;\n'><div class='av-image-hotspot_inner'>1<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-kuzchxyj-6ef71deed1968f48c84afa1151c03661 av-image-hotspot-2 ' data-avia-tooltip-position='top' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-large-width av-tt-pos-above av-tt-align-left  av-mobile-fallback-active  transparent_dark av-tt-hotspot' data-avia-tooltip='&lt;h5&gt;Replaceable top roller&lt;\/h5&gt;\n'><div class='av-image-hotspot_inner'>2<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-kuzci6r9-672e40cf23992c3c68a4198a31be1ba6 av-image-hotspot-3 ' data-avia-tooltip-position='top' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-large-width av-tt-pos-above av-tt-align-left  av-mobile-fallback-active  transparent_dark av-tt-hotspot' data-avia-tooltip='&lt;h5&gt;Surface hardened rollers&lt;\/h5&gt;\n'><div class='av-image-hotspot_inner'>3<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-kuzciati-6dd81842866dcc623bff0eb9053d1bfb av-image-hotspot-4 ' data-avia-tooltip-position='top' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-large-width av-tt-pos-above av-tt-align-left  av-mobile-fallback-active  transparent_dark av-tt-hotspot' data-avia-tooltip='&lt;h5&gt;Pneumatic folding bearing&lt;\/h5&gt;\n'><div class='av-image-hotspot_inner'>4<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-kuzcilhj-17c0a5f2e82ff16c0aea1e4897bd35a3 av-image-hotspot-5 ' data-avia-tooltip-position='top' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-large-width av-tt-pos-above av-tt-align-left  av-mobile-fallback-active  transparent_dark av-tt-hotspot' data-avia-tooltip='&lt;p&gt;CNC control&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>5<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-4540 avia-img-lazy-loading-not-4540 avia_image' src=\"https:\/\/lechner-net.de\/wp-content\/uploads\/2021\/10\/Serie4.jpg\" alt='' title='4-roller round bending machine SERIES 4'  height=\"1000\" width=\"1500\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/lechner-net.de\/wp-content\/uploads\/2021\/10\/Serie4.jpg 1500w, https:\/\/lechner-net.de\/wp-content\/uploads\/2021\/10\/Serie4-480x320.jpg 480w, https:\/\/lechner-net.de\/wp-content\/uploads\/2021\/10\/Serie4-768x512.jpg 768w, https:\/\/lechner-net.de\/wp-content\/uploads\/2021\/10\/Serie4-705x470.jpg 705w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><\/div><\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-1 '><div class=\"av-hotspot-fallback-tooltip-count\">1<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><\/p>\n<h5>4-roller rotary drive<\/h5>\n<p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-2 '><div class=\"av-hotspot-fallback-tooltip-count\">2<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><\/p>\n<h5>Replaceable top roller<\/h5>\n<p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-3 '><div class=\"av-hotspot-fallback-tooltip-count\">3<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><\/p>\n<h5>Surface hardened rollers<\/h5>\n<p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-4 '><div class=\"av-hotspot-fallback-tooltip-count\">4<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><\/p>\n<h5>Pneumatic folding bearing<\/h5>\n<p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-5 '><div class=\"av-hotspot-fallback-tooltip-count\">5<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><p>\nCNC control<\/p>\n<\/div><\/div><\/div><\/p><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-5viiwy-b5a6f42d4b0957dd4878a7c61a171941\">\n.flex_column.av-5viiwy-b5a6f42d4b0957dd4878a7c61a171941{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-5viiwy-b5a6f42d4b0957dd4878a7c61a171941 av_one_fourth  avia-builder-el-3  el_after_av_three_fourth  el_before_av_textblock  flex_column_div av-zero-column-padding  '     ><article  class='iconbox iconbox_left av-kuzce0jf-fdf4ce8c00b6b08abc3777d9ad00702e  avia-builder-el-4  el_before_av_icon_box  avia-builder-el-first '  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconbox_content\"><header class=\"entry-content-header\" aria-label=\"Icon: Special features\"><div class='iconbox_icon heading-color avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue817' data-av_iconfont='entypo-fontello'  ><\/div><h3 class='iconbox_content_title '  itemprop=\"headline\" >Special features<\/h3><\/header><div class='iconbox_content_container '  itemprop=\"text\" ><ul>\n<li>Integrated four-roller drive<\/li>\n<li>Hardened and ground rollers<\/li>\n<li>Quick change device for exchanging the top roller<\/li>\n<li>CNC control with graphical programming interface<\/li>\n<\/ul>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article><br \/>\n<article  class='iconbox iconbox_left av-kuzcece1-a28fb54194ab6f9be762c9c5d4c5ae12  avia-builder-el-5  el_after_av_icon_box  el_before_av_hr '  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconbox_content\"><header class=\"entry-content-header\" aria-label=\"Icon: Options\"><div class='iconbox_icon heading-color avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue817' data-av_iconfont='entypo-fontello'  ><\/div><h3 class='iconbox_content_title '  itemprop=\"headline\" >Options<\/h3><\/header><div class='iconbox_content_container '  itemprop=\"text\" ><ul>\n<li>Controlled ejector and hold-up systems<\/li>\n<li>Replacement rollers with different diameters<\/li>\n<li>Cone bending device<\/li>\n<li>Sheet metal trays, feed tables and other automation options<\/li>\n<\/ul>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article><br \/>\n<div  class='hr av-3j5m7m-ef3e8ff0631940860a4cfba824d40685 hr-short  avia-builder-el-6  el_after_av_icon_box  el_before_av_textblock  hr-left'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-21uof6-2648f02b9c21aeb0524c731aacaab7b0 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/lechner-net.de\/wp-content\/uploads\/2021\/11\/LECHNER-SERIE-4.pdf\" class=\"mtli_attachment mtli_pdf\" data-mtli=\"mtli_filesize21953kB\">Machine brochure LECHNER SERIE 4 as PDF file (German\/English)<\/a><\/p>\n<\/div><\/section><\/p><\/div>\n<section  class='av_textblock_section av-kuzht3t8-bd73361102b65d62bd4cb9ff714ae2fb '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>The versatile and efficient production machine with CNC control<\/strong><\/p>\n<p>The Series 4 CNC round bending machines have two linearly adjustable bending rolls in addition to the top and bottom rolls. This design ensures high-quality rounding with minimized bending end. In combination with our CNC control, this is the most flexible round bending concept on the market and allows a high variety of parts without tooling costs. These machines are used both in simple manufacturing environments and in complex networked production plants.<\/p>\n<p>The machines feature a robust electromechanical drive concept with asynchronous three-phase motors and frequency converters in all linear axes. The same concept is used for the rotary drive, where all rollers are additionally synchronized via a gear train. The machine body consists of a stable steel structure that absorbs the bending forces. The 4 rollers are made of highly tempered steel; the roller surface is hardened and ground. The top roller is firmly mounted on the drive side in the quick-change device, which enables the top roller to be replaced within a very short time. The folding bearing is pneumatically operated.<\/p>\n<p>The modern CNC control has a graphical programming interface that enables automatic program creation by means of technology tables. These tables are pre-filled by our process engineers using modern analysis concepts, so that the customer already has a basic set of technology data for his specific plates at the time of delivery. The design and manufacture is carried out in accordance with the current CE specifications.<\/p>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":4590,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4593","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"4-roll round bending machines LECHNER Series 4 123451 4-roller rotary drive 2 Replaceable top roller 3 Surface hardened rollers 4 Pneumatic folding bearing 5 CNC control Special features Integrated four-roller drive Hardened and ground rollers Quick change device for exchanging the top roller CNC control with graphical programming interface Options Controlled ejector and hold-up systems\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta 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