{"id":7755,"date":"2022-02-22T19:31:48","date_gmt":"2022-02-22T18:31:48","guid":{"rendered":"https:\/\/cotarko.de\/technologies"},"modified":"2026-03-02T16:24:52","modified_gmt":"2026-03-02T15:24:52","slug":"technologies","status":"publish","type":"page","link":"https:\/\/cotarko.de\/en\/technologies\/","title":{"rendered":"Technologies"},"content":{"rendered":"<section class=\"l-section wpb_row height_custom color_alternate with_img\"><div class=\"l-section-img\" style=\"background-image: url(https:\/\/cotarko.de\/wp-content\/uploads\/2021\/11\/DSC5219.jpeg);\" data-img-width=\"1920\" data-img-height=\"1280\"><\/div><div class=\"l-section-overlay\" style=\"background:var(--color-content-overlay)\"><\/div><div class=\"l-section-h i-cf\"><div class=\"g-cols via_flex valign_middle type_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h1 class=\"w-post-elm post_title align_center entry-title color_link_inherit\">Technologies<\/h1><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row us_custom_568dc06e height_custom color_primary with_shape\"><div class=\"l-section-shape type_wave pos_bottom\" style=\"height:5vh;color:var(--color-content-bg-alt)\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 4 64 4\" preserveAspectRatio=\"none\" width=\"100%\" height=\"100%\">\r\n\t<path fill=\"currentColor\" d=\"M64 6 C32 0 32 12 0 6 L0 8 L64 8 Z\"\/>\r\n<\/svg><\/div><div class=\"l-section-h i-cf\"><div class=\"g-cols via_flex valign_middle type_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-menu us_custom_df180c12 layout_hor spread style_links us_menu_1\" style=\"--main-gap:1.5rem;--main-ver-indent:0.8em;--main-hor-indent:0.8em;\"><ul id=\"menu-technologien-englisch\" class=\"menu\"><li id=\"menu-item-7707\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-7707\"><a href=\"#Fast%20forging%20presses\">Fast forging presses<\/a><\/li><li id=\"menu-item-7708\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-7708\"><a href=\"#Wedge%20rolling\">Wedge rolling<\/a><\/li><li id=\"menu-item-7709\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-7709\"><a href=\"#Ring%20rolling\">Ring rolling<\/a><\/li><li id=\"menu-item-7710\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-7710\"><a href=\"#Heat%20treatment\">Heat treatment<\/a><\/li><li id=\"menu-item-7711\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-7711\"><a href=\"#Mechanical%20processing\">Mechanical processing<\/a><\/li><\/ul><style>.us_menu_1 .menu>li>a{color:var(--color-header-transparent-text)}.us_menu_1 .menu>.menu-item:not(.current-menu-item)>a:hover{color:var(--color-header-middle-text-hover)}@media ( max-width:600px ){.us_menu_1 .menu{display:block!important}.us_menu_1 .menu>li{margin:0 0 var(--main-gap,1.5rem)!important}}<\/style><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row us_custom_240e927d us_animate_this height_custom\"><div class=\"l-section-h i-cf\"><div class=\"g-cols via_flex valign_top type_default\"><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h2><strong>Technologies<\/strong><\/h2>\n<h5><span style=\"color: #bd0830;\">Production facts about the plant<\/span><\/h5>\n<\/div><\/div><div class=\"w-separator size_medium\"><\/div><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p>The Cotarko GmbH plant in Cologne currently <strong>employs 220 people<\/strong>.<\/p>\n<p>With a processed material consumption of <strong>41,000 tons of steel per year<\/strong>, a production volume of approx. <strong>40 million parts per year<\/strong> is manufactured.<\/p>\n<p>A total of <strong>4 Hatebur forging presses<\/strong>,<strong> 3 wedge rolls and 4 ring rolls<\/strong> as well as <strong>24 machines for machining<\/strong> ensure that<strong> approx. 130,000 forged parts<\/strong> are delivered to our customers worldwide<strong> every day<\/strong>.<\/p>\n<\/div><\/div><div class=\"w-separator size_large\"><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-image style_shadow-2 align_none\"><div class=\"w-image-h\"><div class=\"w-image-shadow\" style=\"background-image:url(https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_Produktionshalle-scaled.jpeg);\"><\/div><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_Produktionshalle-scaled.jpeg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_Produktionshalle-scaled.jpeg 2560w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_Produktionshalle-300x200.jpeg 300w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_Produktionshalle-1024x683.jpeg 1024w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_Produktionshalle-600x400.jpeg 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/div><\/div><div class=\"w-separator size_large\"><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row us_custom_568dc06e height_custom\"><div class=\"l-section-h i-cf\"><div class=\"g-cols via_flex valign_top type_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h2><span style=\"color: #f5f5f5;\"><strong>Technical highlights<\/strong><\/span><\/h2>\n<\/div><\/div><div class=\"w-separator size_medium\"><\/div><div class=\"g-cols wpb_row via_flex valign_top type_default\"><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>1982<\/strong><br \/>\nCommissioning of the world&#8217;s first Hatebur AMP 70L press for impact extrusion parts &#8211; development of the first impact extrusion part for an AMP70L<\/p>\n<p><strong>1989<\/strong><br \/>\nCommissioning of the first generation of axial die rolls for the production of &#8220;near-net-shape&#8221; differential gears<\/p>\n<p><strong>1990<\/strong><br \/>\nCommissioning of a Smeral ULS 100 cross wedge roll for the production of finished gear shaft blanks<\/p>\n<p><strong>1998<\/strong><br \/>\nCommissioning of the world&#8217;s first Hatebur AMP 50XL press for impact extrusion parts<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>2003<\/strong><br \/>\nRestructuring of the plant according to the principles of &#8220;lean manufacturing<strong>&#8220;<\/strong><\/p>\n<p><strong>2005<\/strong><br \/>\nStart of machining of forged blanks as an additional process step<\/p>\n<p><strong>2010<\/strong><br \/>\nCommissioning of the wheel hub production and assembly line<\/p>\n<p><strong>2021<\/strong><br \/>\nInvestment in a new internal tool shop<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_custom\" id=\"Fast forging presses\"><div class=\"l-section-h i-cf\"><div class=\"g-cols via_flex valign_top type_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"g-cols wpb_row via_flex valign_middle type_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_7e20fa79 us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h2>Fast forging presses<\/h2>\n<\/div><\/div><div class=\"w-separator size_small\"><\/div><\/div><\/div><\/div><\/div><div class=\"g-cols wpb_row via_flex valign_middle type_default\"><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_7e20fa79 us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h5><span style=\"color: #bd0830;\">High-tech industrial forge for precision forgings<\/span><\/h5>\n<p style=\"font-weight: 400;\">The forging of steel parts is carried out in the temperature range from 1100\u00b0C \u2013 1250\u00b0C. The bar stock is heated inductively to the suitable forging temperature, sheared in the Hatebur and then pressed in four forming stages. In the through-feed process it is possible to carry out controlled cooling from the forging heat.<\/p>\n<p style=\"font-weight: 400;\">Machinery: <strong>Hatebur<\/strong><\/p>\n<table style=\"font-weight: 400;\">\n<tbody style=\"font-style: inherit; font-weight: inherit;\">\n<tr style=\"font-style: inherit; font-weight: inherit;\">\n<td style=\"font-style: inherit; font-weight: inherit;\" width=\"208\">\n<p style=\"font-style: inherit; font-weight: inherit;\">Designation<br \/>\nQuantity<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-style: inherit; font-weight: inherit;\">Forming stages<br \/>\nOperating weight<br \/>\nmax. \u00d8 forged part<br \/>\nNumber of strokes<br \/>\nTotal pressing force <\/p>\n<\/td>\n<td style=\"font-style: inherit; font-weight: inherit;\" width=\"208\">\n<p style=\"font-style: inherit; font-weight: inherit;\">AMP 50 (XL)<br \/>\n1 machine<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-style: inherit; font-weight: inherit;\">4<br \/>\nup to 2.0 kg<br \/>\napprox. 104 mm<br \/>\n60-100\/min<br \/>\n8000 kN<\/p>\n<\/td>\n<td style=\"font-style: inherit; font-weight: inherit;\" width=\"208\">\n<p style=\"font-style: inherit; font-weight: inherit;\">AMP 70 (L)<br \/>\n2 machines 70<br \/>\n1 machine 70 L<\/p>\n<p><span style=\"font-style: inherit; font-family: inherit; font-size: inherit;\"><br \/>\n4<br \/>\n<\/span>up to 5.0 kg<br \/>\napprox. 150 mm<br \/>\n50-80\/min<br \/>\n12-15000 kN<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-weight: 400;\"><b><strong style=\"font-style: inherit;\">Special features<\/strong><\/b><b><strong style=\"font-style: inherit;\">:<br \/>\n<\/strong><\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\">The AMP70 has an 180 mm ejector stroke for extruded parts<\/li>\n<li style=\"font-weight: 400;\">Extruded parts can also be produced on the AMP50<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_d628d18a us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"w-image style_shadow-1 has_ratio align_none\"><div class=\"w-image-h\"><div style=\"padding-bottom:66.6667%\"><\/div><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_hatepur-scaled.jpeg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_hatepur-scaled.jpeg 2560w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_hatepur-300x200.jpeg 300w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_hatepur-1024x683.jpeg 1024w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_hatepur-600x400.jpeg 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/div><\/div><div class=\"w-separator size_large\"><\/div><\/div><\/div><\/div><\/div><div class=\"g-cols wpb_row via_flex valign_middle type_default reversed\" id=\"Keilwalzen\"><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_a640122a us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"w-image style_shadow-1 has_ratio align_none\"><div class=\"w-image-h\"><div style=\"padding-bottom:66.6667%\"><\/div><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1628\" src=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technlologien_keilwlazen-scaled.jpeg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technlologien_keilwlazen-scaled.jpeg 2560w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technlologien_keilwlazen-300x191.jpeg 300w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technlologien_keilwlazen-1024x651.jpeg 1024w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technlologien_keilwlazen-600x382.jpeg 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/div><\/div><div class=\"w-separator size_large\"><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_47474b22 us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h2>Wedge rolling<\/h2>\n<h5 style=\"font-weight: 400;\"><span style=\"color: #bd0830;\">Producing for gear shafts<\/span><\/h5>\n<p style=\"font-weight: 400;\">Compression forming of rotationally symmetrical blanks at 1100\u00b0C \u2013 1250\u00b0C between counter-rotating moving generating tools, which reduce by rolling on the surface of the workpiece. Preferred process for manufacturing gear shafts with widely diverging geometrical cross-sections.<\/p>\n<p style=\"font-weight: 400;\">Machinery: <strong>Smeral wedge rolling<\/strong><\/p>\n<table style=\"font-weight: 400;\">\n<tbody style=\"font-style: inherit; font-weight: inherit;\">\n<tr style=\"font-style: inherit; font-weight: inherit;\">\n<td style=\"font-style: inherit; font-weight: inherit;\" width=\"307\">\n<p style=\"font-style: inherit; font-weight: inherit;\">Number<\/p>\n<p style=\"font-style: inherit; font-weight: inherit;\">Roller diameter<br \/>\nForming force<br \/>\nClutch torque<br \/>\nmax. \u00d8 for rolling<\/p>\n<\/td>\n<td style=\"font-style: inherit; font-weight: inherit;\" width=\"307\">\n<p style=\"font-style: inherit; font-weight: inherit;\">3 machines<\/p>\n<p style=\"font-style: inherit; font-weight: inherit;\">1000 mm<br \/>\n13000 kN<br \/>\n7800 kN<br \/>\n100 mm<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-weight: 400;\"><b><strong style=\"font-style: inherit;\">Special features:<\/strong><\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\">Forming with undercuts is possible in this process<\/li>\n<li style=\"font-weight: 400;\">Distortion after machining (hardening) is low<\/li>\n<li style=\"font-weight: 400;\">Homogeneous grain flow through whole shaft<\/li>\n<\/ul>\n<\/div><\/div><div class=\"w-separator size_large\"><\/div><div class=\"w-separator size_large\"><\/div><\/div><\/div><\/div><\/div><div class=\"g-cols wpb_row via_flex valign_middle type_default\" id=\"Ringwalzen\"><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_7e20fa79 us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h2>Ring rolling<\/h2>\n<h5><span style=\"color: #bd0830;\">Production of seamless ringears<\/span><\/h5>\n<p>The ring roller process is realised as a combination process in the temperature range of 1100\u00b0C \u2013 1250\u00b0C. A process combination of blocking and radial and axial rolling permits seamless production of complex ring gears for the gear differential.<\/p>\n<p>Machinery: <strong>maxi-press, multi-pin radial roller and axial die-forging roller<\/strong><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"307\">Number<\/p>\n<p>Maxi presses<br \/>\nmax. \u00d8 forging<br \/>\nmax. Forging height<br \/>\nRolling force<br \/>\nRevolutions of the roll<\/td>\n<td valign=\"top\" width=\"307\">3 machines<\/p>\n<p>16000 kN<br \/>\n280 mm<br \/>\n80 mm<br \/>\n1250 kN<br \/>\n400\/min<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Special features:<\/strong><\/p>\n<ul>\n<li>Rolling blanks can be designed with low allowance as finished part<\/li>\n<li>Especially good surface quality through rolling process<\/li>\n<li>Unfinished surfaces = finished surfaces can be taken into account on the product<\/li>\n<li>Environmentally friendly process thanks to low material use<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_d628d18a us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"w-image style_shadow-1 has_ratio align_center\"><div class=\"w-image-h\"><div style=\"padding-bottom:66.6667%\"><\/div><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_ringwalzen-1024x683.jpeg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_ringwalzen-1024x683.jpeg 1024w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_ringwalzen-300x200.jpeg 300w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_ringwalzen-600x400.jpeg 600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/div><div class=\"w-separator size_large\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_custom\" id=\"Heat treatment\"><div class=\"l-section-h i-cf\"><div class=\"g-cols via_flex valign_top type_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"g-cols wpb_row via_flex valign_middle type_default\"><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_7e20fa79 us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h2>Heat treatment<\/h2>\n<h5><span style=\"color: #bd0830;\">Different treatment processes according to your specifications<\/span><\/h5>\n<p>The workpieces are heated slowly and thoroughly in all annealing processes. The various processes which serve to set the desired material properties for use or prepare for subsequent processing (forming or machining) differ through:<\/p>\n<ul>\n<li>Annealing temperature<\/li>\n<li>Annealing duration<\/li>\n<li>Type of cooling<\/li>\n<li>Sequence of different heat treatment steps<\/li>\n<\/ul>\n<p>The component characteristics regarding hardness, strength and grain spacing quality are guaranteed by the various heat treatment processes in cooperation with our customers. We can offer the following processes:<\/p>\n<ul>\n<li>Normalising<\/li>\n<li>Quenching and tempering<\/li>\n<li>Annealing<\/li>\n<li>BG-annealing<\/li>\n<li>Controlled cooling from forge heat<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_d628d18a us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"w-image has_ratio align_center\"><div class=\"w-image-h\"><div style=\"padding-bottom:66.6667%\"><\/div><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_waremebehanldung-scaled.jpeg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_waremebehanldung-scaled.jpeg 2560w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_waremebehanldung-300x200.jpeg 300w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_waremebehanldung-1024x683.jpeg 1024w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/Technologien_waremebehanldung-600x400.jpeg 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"w-separator size_large\"><\/div><div class=\"w-separator size_large\"><\/div><div class=\"g-cols wpb_row via_flex valign_middle type_default reversed\" id=\"Zerspanung\"><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_a640122a us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"w-image style_shadow-1 has_ratio align_center\"><div class=\"w-image-h\"><div style=\"padding-bottom:66.6667%\"><\/div><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung-scaled.jpeg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung-scaled.jpeg 2560w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung-300x200.jpeg 300w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung-1024x683.jpeg 1024w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung-600x400.jpeg 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/div><\/div><div class=\"w-separator size_medium\"><\/div><div class=\"w-image style_shadow-2 has_ratio align_none\"><div class=\"w-image-h\"><div style=\"padding-bottom:66.6667%\"><\/div><div class=\"w-image-shadow\" style=\"background-image:url(https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung2-1024x683.jpeg);\"><\/div><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung2-1024x683.jpeg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung2-1024x683.jpeg 1024w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung2-300x200.jpeg 300w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung2-600x400.jpeg 600w, https:\/\/cotarko.de\/wp-content\/uploads\/2021\/12\/technologien_zerspanung2.jpeg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container \"><div class=\"vc_column-inner us_custom_47474b22 us_animate_this\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><h2>Mechanical processing<\/h2>\n<h5><span style=\"color: #bd0830;\">Complete production line for machining<\/span><\/h5>\n<p>Under certain circumstances, the stage in the process chain at the end of which the precision part the customer wants is ready, may not yet have been reached with the various forming technologies. For this reason, Cotarko has made large investments in machining processing technology.<\/p>\n<p>Machinery: <strong>Emag, Rasoma, Karl Klink, Chiron<\/strong><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"307\">Number<\/p>\n<p>Products<\/p>\n<p>Technologies<\/td>\n<td valign=\"top\" width=\"307\">24 machines<\/p>\n<p>Gear wheels (pre-machining)<br \/>\nShafts (pre-machining)<br \/>\nWheel hubs (ready for installation)<\/p>\n<p>Turning, broaching, drilling,<br \/>\nPressing, crack spraying<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Special features:<\/strong><\/p>\n<ul>\n<li>Complete production line for machining, especially in wheel hub production<\/li>\n<li>Pre-machining of gear wheels and shafts is possible in our company<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"Technologies Fast forging pressesWedge rollingRing rollingHeat treatmentMechanical processingTechnologies Production facts about the plant The Cotarko GmbH plant in Cologne currently employs 220 people. With a processed material consumption of 41,000 tons of steel per year, a production volume of approx. 40 million parts per year is manufactured. A total of 4 Hatebur forging presses, 3...","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7755","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/pages\/7755","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/comments?post=7755"}],"version-history":[{"count":48,"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/pages\/7755\/revisions"}],"predecessor-version":[{"id":8552,"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/pages\/7755\/revisions\/8552"}],"wp:attachment":[{"href":"https:\/\/cotarko.de\/en\/wp-json\/wp\/v2\/media?parent=7755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}