{"id":69,"date":"2026-11-06T19:06:37","date_gmt":"2026-11-06T11:06:37","guid":{"rendered":"https:\/\/kerkepm.com\/company\/about\/"},"modified":"2026-11-11T13:11:52","modified_gmt":"2026-11-11T05:11:52","slug":"about","status":"publish","type":"page","link":"https:\/\/kerkepm.com\/es\/company\/about\/","title":{"rendered":"A machine builder in Nanjing, since 2009"},"content":{"rendered":"<div class=\"k3\">\n<noscript><iframe loading=\"lazy\" src=\"https:\/\/www.googletagmanager.com\/ns.html?id=GTM-5JN495RG\" height=\"0\" width=\"0\" style=\"display:none;visibility:hidden\"><\/iframe><\/noscript>\n<div class=\"wrap\"><div class=\"crumbs\"><a href=\"\/\">Home<\/a><span>\/<\/span><a href=\"\/company\/\">Company<\/a><span>\/<\/span>About<\/div><\/div><div class=\"wrap\"><div class=\"hero\">\n<p class=\"kicker\">Company \u00b7 About<\/p>\n<h1>A machine builder in Nanjing, since 2009<\/h1>\n<p class=\"dek\">Kerke is a twin screw extruder manufacturer in Nanjing, designing and building co-rotating twin screw extruders, three-screw machines, two-stage lines and pelletizing systems. Screws, barrels and liners are machined in-house, which is why a wear package can be specified by material instead of picked from a catalogue.<\/p>\n<div class=\"byline\"><div><b>Founded<\/b> 2009<\/div><div><b>Delivered<\/b> 2,000+ sets<\/div>\n<div><b>Markets<\/b> 70+ countries<\/div><div><b>Certification<\/b> CE \/ SGS<\/div><\/div>\n<\/div><\/div>\n<div class=\"wrap\"><div class=\"grid\"><main>\n<div class=\"strip\"><div><b>1\u20134,000 kg\/h<\/b><span>Output range across 11 machine families<\/span><\/div>\n<div><b>15.6\u2013135 mm<\/b><span>Screw diameter, lab to production<\/span><\/div>\n<div><b>24\u201348 h<\/b><span>Spare parts dispatch for standard sizes<\/span><\/div>\n<div><b>30\u201345 days<\/b><span>Standard delivery, test-run before shipment<\/span><\/div><\/div>\n\n<nav class=\"wp-block-rank-math-toc-block k3-toc\" aria-label=\"On this page\"><b>On this page:<\/b><a href=\"#rm-s1\">What we build<\/a><a href=\"#rm-s2\">How we work<\/a><a href=\"#rm-s3\">Service commitments<\/a><a href=\"#rm-s4\">Brand and trading entity<\/a><\/nav>\n<h2 class=\"sec\" id=\"rm-s1\">What we build<\/h2>\n<p>Eleven machine families on one screw platform: lab and pilot twin screws from 15.6 mm, production twin screws to 135 mm, two-stage KTE\/SE lines, triple screw KTE-T for dispersion-limited products, kneader compounding extruders, single screw and SE\/SE recycling lines, seven pelletizing methods, gravimetric feeding and the auxiliary equipment that makes a plant run.<\/p>\n<figure class=\"vhero about-video\">\n<button class=\"plcover\" type=\"button\" data-vid=\"iBMgmu9fOLk\" aria-label=\"Play the Kerke factory tour video\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/vid-projects-hero.webp\" alt=\"Kerke factory tour video \u2014 screw elements, barrel machining and extruder assembly in the Nanjing works\" width=\"1200\" height=\"675\" loading=\"lazy\"><span class=\"plplay\" aria-hidden=\"true\"><\/span><\/button>\n<figcaption>The Kerke works in Nanjing \u2014 screw elements, barrels and gearboxes machined and assembled under one roof, then run with material before shipment.<\/figcaption>\n<\/figure>\n<p><a href=\"\/machines\/\">Machine overview<\/a> \u00b7 <a href=\"\/applications\/\">Applications by material<\/a><\/p>\n\n<h2 class=\"sec\" id=\"rm-s2\">How we work<\/h2>\n<ol class=\"flow\">\n<li><b>The material comes first<\/b>Filler grade, bulk density, moisture, target loading and downstream process. Without those five numbers a quotation is a guess.<\/li>\n<li><b>A trial, not a brochure<\/b>25\u201350 kg on a lab line: pellets, video, temperatures, screw speed, feeder settings and output per hour. 3\u20137 days.<\/li>\n<li><b>The line is specified around the wear duty<\/b>Bimetallic liner and PM elements where abrasive; standard where not. The wear package is a quotation line item, not a hidden upgrade.<\/li>\n<li><b>Test-run before shipment<\/b>Every machine runs with material in Nanjing, and the run record ships with the machine.<\/li>\n<li><b>Commissioning and after-sales<\/b>Installation drawings, English manual, commissioning support, and spare parts from our own workshop.<\/li>\n<\/ol>\n\n<h2 class=\"sec\" id=\"rm-s3\">Service commitments<\/h2>\n<ul>\n<li><strong>Spare parts:<\/strong> screw elements, shafts and liners for standard models dispatch in 24\u201348 hours.<\/li>\n<li><strong>Technical response:<\/strong> a named engineer answers within one working day, in English.<\/li>\n<li><strong>Documentation:<\/strong> English manual, electrical drawings, spare parts list, and the commissioning record from your own machine.<\/li>\n<li><strong>Certification:<\/strong> CE declaration and SGS inspection available with the shipment.<\/li>\n<\/ul>\n\n<h2 class=\"sec\" id=\"rm-s4\">Brand and trading entity<\/h2>\n<p>Machines are sold worldwide under the <strong>Kerke<\/strong> brand. Export contracts, invoices and customs documentation are issued by Uptech, Kerke's exclusive export partner \u2014 the same team, the same factory, a separate legal entity for export formalities.<\/p>\n<p class=\"k3-rel\"><b>Related on this site:<\/b> <a href=\"\/company\/news\/\">Exhibition news<\/a> \u00b7 <a href=\"\/company\/factory\/\">Inside the factory<\/a> \u00b7 <a href=\"\/company\/certificates\/\">CE &amp; ISO certificates<\/a> \u00b7 <a href=\"\/cases\/\">Customer cases<\/a> \u00b7 <a href=\"\/projects\/videos\/\">Video library<\/a><\/p>\n\n<h2 class=\"sec\" id=\"faq\">FAQ<\/h2><details><summary>Who builds Kerke extruders?<\/summary><p>Nanjing Kerke Extrusion Equipment Co., Ltd., founded in 2009. Screw elements, barrels and liners are machined in the same Nanjing works where the lines are assembled and tested - nothing critical is subcontracted.<\/p><\/details><details><summary>Where is the factory and can I visit?<\/summary><p>The works is in Lishui district, Nanjing, China - about one hour from Nanjing South rail station. Visits and live video audits are by appointment; a 25-50 kg material trial can usually be arranged in the same week.<\/p><\/details><details><summary>What warranty and support come with a line?<\/summary><p>12-month warranty, 2-hour technical response on working days, spare parts dispatched in 24-48 hours, remote commissioning included and on-site commissioning as a quoted option.<\/p><\/details><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Who builds Kerke extruders?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Nanjing Kerke Extrusion Equipment Co., Ltd., founded in 2009. 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Describe the material and the target output; a named engineer replies within one working day.<\/p>\n<form class=\"kside\" novalidate>\n<input type=\"text\" name=\"name\" placeholder=\"Name *\" required>\n<input type=\"email\" name=\"email\" placeholder=\"Work email *\" required>\n<input type=\"text\" name=\"whatsapp\" placeholder=\"WhatsApp \/ phone\">\n<input type=\"hidden\" name=\"product\" value=\"About page enquiry\">\n<input type=\"hidden\" name=\"form\" value=\"about-aside\">\n<textarea name=\"message\" rows=\"3\" placeholder=\"Material, output kg\/h, timeline\"><\/textarea>\n<button type=\"submit\" class=\"btn\">Send enquiry<\/button>\n<p class=\"ok\" hidden>Thanks \u2014 an engineer replies within one working day.<\/p>\n<\/form>\n<\/div><\/aside>\n<\/div><\/div>\n<script>\ndocument.querySelectorAll('.k3 .vhero .plcover').forEach(function(b){\nb.addEventListener('click',function(){\nvar f=document.createElement('iframe');\nf.src='https:\/\/www.youtube.com\/embed\/'+b.dataset.vid+'?autoplay=1&rel=0';\nf.title='Kerke factory tour video';f.allowFullscreen=true;\nf.allow='accelerometer;autoplay;encrypted-media;picture-in-picture';\nb.replaceWith(f);});});\n<\/script>\n<script>\ndocument.querySelectorAll('.k3 .kside').forEach(function(f){\nf.addEventListener('submit',function(ev){\nev.preventDefault();\nvar d=new FormData(f),o={};\nd.forEach(function(v,k){o[k]=v;});\nif(!o.name||!o.email||o.email.indexOf('@')<0){return false;}\no.action='kerke_lead';o.page_url=location.href;\nvar btn=f.querySelector('button');btn.disabled=true;btn.textContent='Sending\u2026';\nfetch('\/wp-admin\/admin-ajax.php',{method:'POST',body:new URLSearchParams(o)})\n.then(function(r){return r.json();})\n.then(function(r){\nif(r&&r.success){f.querySelector('.ok').hidden=false;btn.style.display='none';\nwindow.dataLayer=window.dataLayer||[];window.dataLayer.push({event:'generate_lead',form:'about-aside'});}\nelse{btn.disabled=false;btn.textContent='Send enquiry';}})\n.catch(function(){btn.disabled=false;btn.textContent='Send enquiry';});\nreturn false;});});\n<\/script>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Home\/Company\/About Company \u00b7 About A machine builder in Nanjing, since 2009 Kerke is a twin screw extruder manufacturer in Nanjing, designing and building co-rotating twin screw extruders, three-screw machines, two-stage lines and pelletizing systems. Screws, barrels and liners are machined in-house, which is why a wear package can be specified by material instead of picked [&#8230;]\n","protected":false},"author":0,"featured_media":0,"parent":68,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"footnotes":""},"application":[],"app_group":[],"class_list":["post-69","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/69","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/comments?post=69"}],"version-history":[{"count":0,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/69\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/68"}],"wp:attachment":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/media?parent=69"}],"wp:term":[{"taxonomy":"application","embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/application?post=69"},{"taxonomy":"app_group","embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/app_group?post=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}