{"id":21,"date":"2026-11-06T19:04:04","date_gmt":"2026-11-06T11:04:04","guid":{"rendered":"https:\/\/kerkepm.com\/machines\/auxiliary-parts\/"},"modified":"2026-11-11T23:36:42","modified_gmt":"2026-11-11T15:36:42","slug":"spare-parts","status":"publish","type":"page","link":"https:\/\/kerkepm.com\/es\/machines\/spare-parts\/","title":{"rendered":"Auxiliary Equipment &amp; Spare Parts"},"content":{"rendered":"<div class=\"k3\">\r\n<div class=\"wrap\"><div class=\"crumbs\"><a href=\"\/\">Home<\/a><span>\/<\/span><a href=\"\/machines\/\">Machines<\/a><span>\/<\/span>Spare parts &amp; auxiliaries<\/div><\/div>\r\n<div class=\"wrap\"><div class=\"hero\">\r\n<p class=\"kicker\">Machine \u00b7 Spare parts &amp; auxiliary equipment<\/p>\r\n<h1>Extruder Spare Parts &amp; Auxiliary Equipment<\/h1>\r\n<p class=\"dek\">Screw elements, barrels and shafts are the parts that wear \u2014 we keep the common sizes in stock and machine the specials in our own workshop. Mixers, pelletizers and line fittings come from the same floor, so one purchase order covers the extruder and everything around it.<\/p>\r\n<div class=\"byline\"><div><b>Updated<\/b> 11 November 2026<\/div><div><b>Wear parts<\/b> elements \u00b7 barrels \u00b7 shafts<\/div>\r\n<div><b>Stock dispatch<\/b> 24\u201348 h<\/div><div><b>Custom parts<\/b> drawing or sample<\/div><\/div>\r\n<\/div><\/div>\r\n<div class=\"wrap\"><div class=\"appmedia\">\r\n<div class=\"mslider\" id=\"appslider\">\r\n<div class=\"ms-frame\"><div class=\"ms-slide on\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/machine-auxiliary-parts-s1.webp\" alt=\"Spare parts warehouse, Kerke workshop, Nanjing\" loading=\"eager\"><span class=\"ms-cap\">Spare parts warehouse \u2014 gearboxes, motors and stock assemblies<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/machine-auxiliary-parts-s2.webp\" alt=\"Screw elements and barrels in stock, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Screw elements and barrels on stock racks<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/machine-auxiliary-parts-s3.webp\" alt=\"CNC turning of screw shafts, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">CNC turning of screw shafts and elements<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/machine-auxiliary-parts-s4.webp\" alt=\"Machining centre with barrel liners, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Machining centre with barrel liners<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/machine-auxiliary-parts-s5.webp\" alt=\"Barrel castings, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Barrel castings before finish machining<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/machine-auxiliary-parts-s6.webp\" alt=\"Robot welding station, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Robot welding station for tanks and skids<\/span><\/div><div class=\"ms-slide\"><div class=\"ms-video\" data-yt=\"iBMgmu9fOLk\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/machine-auxiliary-parts-s2.webp\" alt=\"Running video \u2014 Kerke machining and assembly shop\" loading=\"lazy\"><button type=\"button\" class=\"ms-play\" aria-label=\"Play video\">&#9654;<\/button><\/div><span class=\"ms-cap\">Running video \u2014 Kerke machining and assembly shop<\/span><\/div><\/div>\r\n<button type=\"button\" class=\"ms-nav prev\" aria-label=\"Previous slide\">&#8249;<\/button>\r\n<button type=\"button\" class=\"ms-nav next\" aria-label=\"Next slide\">&#8250;<\/button>\r\n<div class=\"ms-dots\"><button type=\"button\" data-i=\"0\" class=\"ms-dot on\" aria-label=\"Slide 1\"><\/button><button type=\"button\" data-i=\"1\" class=\"ms-dot\" aria-label=\"Slide 2\"><\/button><button type=\"button\" data-i=\"2\" class=\"ms-dot\" aria-label=\"Slide 3\"><\/button><button type=\"button\" data-i=\"3\" class=\"ms-dot\" aria-label=\"Slide 4\"><\/button><button type=\"button\" data-i=\"4\" class=\"ms-dot\" aria-label=\"Slide 5\"><\/button><button type=\"button\" data-i=\"5\" class=\"ms-dot\" aria-label=\"Slide 6\"><\/button><button type=\"button\" data-i=\"6\" class=\"ms-dot\" aria-label=\"Slide 7\"><\/button><\/div>\r\n<\/div>\r\n<div class=\"appmedia-text\">\r\n<section class=\"qa\" id=\"answer\"><h2 id=\"rm-s1\">Quick answer<\/h2><p>Kerke stocks screw elements, barrels and shafts for KTE twin-screw and SE single-screw extruders \u2014 stock parts dispatch in 24\u201348 h, and specials are machined from a drawing or a used sample in 15\u201325 days. The auxiliary range \u2014 SHR hot and cool high-speed mixers (5\u20131,000 L), strand and die-face pelletizers, screen changers and line fittings \u2014 is built in the same workshop, quoted with the extruder line so nothing is a surprise at commissioning.<\/p><\/section>\r\n<\/div>\r\n<\/div><\/div>\r\n<div class=\"wrap\"><div class=\"grid\"><main>\r\n<div class=\"stats\"><div class=\"stat\"><b>24\u201348 h<\/b><span>stock parts dispatch<\/span><\/div><div class=\"stat\"><b>15\u201325 d<\/b><span>custom elements<\/span><\/div><div class=\"stat\"><b>W6Mo5Cr4V2<\/b><span>element steel<\/span><\/div><div class=\"stat\"><b>SHR 5\u20131,000 L<\/b><span>high-speed mixers<\/span><\/div><\/div>\r\n<h2 class=\"sec\" id=\"wear\" id=\"rm-s2\">Wear parts \u2014 screw elements, barrels, shafts<\/h2>\r\n<p>These three decide whether the line holds its output after a year of abrasive filler. We build them ourselves, so the material is specified for your recipe rather than taken from a catalogue.<\/p>\r\n<div class=\"tw\"><table><caption><b>Table 1.<\/b> Core wear parts \u2014 materials and fit.<\/caption>\r\n<thead><tr><th scope=\"col\">Part<\/th><th scope=\"col\">Typical material<\/th><th scope=\"col\">Fits<\/th><th scope=\"col\">Note<\/th><\/tr><\/thead>\r\n<tbody>\r\n<tr><td class=\"num\">Screw elements (\u87ba\u5957)<\/td><td>W6Mo5Cr4V2, HRC 58\u201362; 38CrMoAlA nitrided for standard duty<\/td><td>KTE 35\u201395 twin screw, SHJ, SE<\/td><td>Building-block segments: conveying, kneading, mixing, zoning. Wear zone sets sold per recipe.<\/td><\/tr>\r\n<tr><td class=\"num\">Barrels (\u673a\u7b52)<\/td><td>38CrMoAlA nitrided; bimetal liner (HIP) for high-filler<\/td><td>Matched to screw \u00d8 and centre distance<\/td><td>Closed, vented and side-feeder barrels; heater collars and thermocouple bores as originals.<\/td><\/tr>\r\n<tr><td class=\"num\">Shafts \/ cores (\u82af\u8f74)<\/td><td>42CrMo quenched and tempered, involute splined<\/td><td>KTE, SHJ, SE series<\/td><td>Six-tooth involute spline; new shafts or straightness restored on request.<\/td><\/tr>\r\n<\/tbody><\/table><\/div>\r\n<p class=\"note\">Not sure of the segment codes? Send a photo of the worn element and the extruder model \u2014 we identify the set from the wear pattern.<\/p>\r\n<h2 class=\"sec\" id=\"stock\" id=\"rm-s3\">In stock or made to order<\/h2>\r\n<div class=\"tw\"><table><caption><b>Table 2.<\/b> Dispatch and lead times.<\/caption>\r\n<thead><tr><th scope=\"col\">Item<\/th><th scope=\"col\">Stock<\/th><th scope=\"col\">Custom<\/th><\/tr><\/thead>\r\n<tbody>\r\n<tr><td class=\"num\">Screw elements, common KTE sizes<\/td><td>24\u201348 h dispatch<\/td><td>15\u201325 days from drawing or sample<\/td><\/tr>\r\n<tr><td class=\"num\">Barrels, nitrided \/ bimetal<\/td><td>Common lengths in stock<\/td><td>20\u201330 days per drawing<\/td><\/tr>\r\n<tr><td class=\"num\">Splined shafts<\/td><td>SE \/ KTE common sizes<\/td><td>15\u201325 days<\/td><\/tr>\r\n<tr><td class=\"num\">Heater bands, thermocouples, seals<\/td><td>In stock<\/td><td>\u2014<\/td><\/tr>\r\n<tr><td class=\"num\">Die plates, screen changer plates<\/td><td>48 h for standard plates<\/td><td>Per drawing<\/td><\/tr>\r\n<\/tbody><\/table><\/div>\r\n<p>Custom work starts from either a drawing or a physical part: we measure, reverse the segment geometry, quote within one working day and machine in our own CNC shop \u2014 no third-party foundry queue.<\/p>\r\n<h2 class=\"sec\" id=\"aux\" id=\"rm-s4\">Auxiliary equipment<\/h2>\r\n<p><b>High-speed mixers (\u9ad8\u6df7\u673a).<\/b> SHR hot-mix and hot\/cool combination units, 5\u20131,000 L, for powder premix, masterbatch and PVC compounding. Stainless contact parts, jacketed for cooling, with the same PLC family as the extruder line.<\/p>\r\n<p><b>Pelletizing units (\u5207\u7c92).<\/b> Strand pelletizers, water-ring and die-face cutters matched to the extruder output; spare knives, die plates and strand guides stocked for every machine we ship.<\/p>\r\n<p><b>Line fittings (\u914d\u4ef6).<\/b> Screen changers, gravimetric feeder screws, water baths, air knives, gearboxes, heater bands and seals \u2014 the parts that keep the line fed, cut and dry, quoted as a set with the main machine.<\/p>\r\n<h2 class=\"sec\" id=\"faq\" id=\"rm-s5\">FAQ<\/h2>\r\n<details open><summary>Are screw elements made in-house?<\/summary><p>Yes. Building-block elements, shafts and barrel liners are machined in our own workshop \u2014 the CNC shop you see on this page. Standard KTE sizes are stocked; specials are quoted from a drawing or a sample within one working day.<\/p><\/details>\r\n<details><summary>What spare parts should be stocked?<\/summary><p>One set of screw elements for the wear zone, one die plate, heater bands, thermocouples, and a gearbox oil filter set. That covers 90% of unplanned stops.<\/p><\/details>\r\n<details><summary>Do you supply the water and air systems?<\/summary><p>Water ring and underwater systems include the pump, tank and heat exchanger as a skid; compressed air and chilled water supply to the skid are by the customer.<\/p><\/details>\r\n<div class=\"related\"><h2 id=\"rm-s6\">Related<\/h2><div class=\"rel-grid\"><a class=\"rel\" href=\"\/machines\/pelletizing-systems\/\"><span>Pelletizing<\/span>Pelletizing systems \u2014 all 7 methods<\/a><a class=\"rel\" href=\"\/machines\/\"><span>Machines<\/span>Full machine range<\/a><\/div><\/div>\r\n<div class=\"cta\"><div><b>Send the extruder model and the worn part.<\/b><p>We confirm stock, price and lead time within one working day \u2014 for a full line, include the target output and material.<\/p><\/div>\r\n<div class=\"acts\"><a href=\"\/get-a-quote\/\">Request a quote<\/a>\r\n<a class=\"alt\" href=\"\/get-a-quote\/#trial\">Send material for trial<\/a><\/div><\/div>\r\n<\/main>\r\n<aside><h5>On this page<\/h5><ol><li><a href=\"#answer\">Quick answer<\/a><\/li><li><a href=\"#wear\">Wear parts<\/a><\/li><li><a href=\"#stock\">Stock &amp; lead times<\/a><\/li><li><a href=\"#aux\">Auxiliaries<\/a><\/li><li><a href=\"#faq\">FAQ<\/a><\/li><\/ol>\r\n<div class=\"sidecard\"><b>Stock or custom?<\/b><p>Common KTE\/SE wear parts leave the warehouse in 24\u201348 h. Send a drawing or a worn sample and the special is quoted in one working day.<\/p>\r\n<a class=\"btn\" href=\"\/get-a-quote\/\">Request a quote<\/a>\r\n<a class=\"btn ghost\" href=\"\/machines\/\">All machines<\/a><\/div><\/aside><\/div><\/div>\r\n<div class=\"wrap\"><section class=\"k3-more\" id=\"rm-more\"><h2>Spare parts \u2014 the short version<\/h2><p>What keeps a compounding line profitable is not the extruder spec sheet \u2014 it is how fast worn elements, barrels and shafts are back on the machine. We stock the common sizes, machine the specials in-house, and build the mixers and pelletizers around the extruder so the whole line is supported by one supplier.<\/p><p class=\"k3-rel\"><b>Related on this site:<\/b> <a href=\"\/machines\/pelletizing-systems\/\">Pelletizing systems (all 7 methods)<\/a> \u00b7 <a href=\"\/machines\/\">Full machine range<\/a> \u00b7 <a href=\"\/get-a-quote\/\">free extrusion line quotation<\/a><\/p><\/section><\/div>\r\n<script>\n(function(){\n  var root=document.getElementById('appslider'); if(!root) return;\n  var slides=[].slice.call(root.querySelectorAll('.ms-slide'));\n  var dots=[].slice.call(root.querySelectorAll('.ms-dot'));\n  var cur=0, timer=null, locked=false;\n  function show(i){\n    cur=(i+slides.length)%slides.length;\n    slides.forEach(function(s,j){\n      s.classList.toggle('on', j===cur);\n      var v=s.querySelector('.ms-video');\n      if(j!==cur && v){ var f=v.querySelector('iframe');\n        if(f){ f.remove(); var p=v.querySelector('.ms-play'); if(p) p.style.display=''; } }\n    });\n    dots.forEach(function(d,j){ d.classList.toggle('on', j===cur); });\n    var v=slides[cur].querySelector('.ms-video');\n    if(v){ locked=true; stop(); playVideo(v); }\n  }\n  \/* \u81ea\u52a8\u64ad\u653e\uff1a3s \u4e00\u5f20\uff1b\u60ac\u505c\u6682\u505c\uff0c\u79fb\u51fa\u6062\u590d\uff1b\u8f6e\u5230\u89c6\u9891\u81ea\u52a8\u9759\u97f3\u64ad\u653e\u5e76\u505c\u7559\uff08locked\uff09\uff0c\u624b\u52a8\u5207\u6362\u540e\u6062\u590d\u8f6e\u64ad *\/\n  function start(){ if(timer || document.hidden || locked) return; timer=setInterval(function(){ show(cur+1); }, 3000); }\n  function stop(){ if(timer){ clearInterval(timer); timer=null; } }\n  function playVideo(v){\n    if(v.querySelector('iframe')) return;\n    var f=document.createElement('iframe');\n    f.src='https:\/\/www.youtube.com\/embed\/'+v.dataset.yt+'?autoplay=1&mute=1&rel=0';\n    f.setAttribute('allow','autoplay; encrypted-media; picture-in-picture');\n    f.setAttribute('allowfullscreen','');\n    var p=v.querySelector('.ms-play'); if(p) p.style.display='none';\n    v.insertBefore(f, p);\n  }\n  function manual(i){ locked=false; show(i); start(); }\n  document.addEventListener('visibilitychange', function(){ if(document.hidden) stop(); else start(); });\n  root.addEventListener('mouseenter', stop);\n  root.addEventListener('mouseleave', function(){ if(!locked) start(); });\n  root.querySelector('.prev').addEventListener('click', function(){ manual(cur-1); });\n  root.querySelector('.next').addEventListener('click', function(){ manual(cur+1); });\n  dots.forEach(function(d){ d.addEventListener('click', function(){ manual(+d.dataset.i); }); });\n  root.addEventListener('click', function(e){\n    var p=e.target.closest('.ms-play'); if(!p) return;\n    locked=true; stop(); playVideo(p.parentNode);\n  });\n  show(0);\n  start();\n})();\n<\/script>\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Product\",\"name\":\"Extruder Spare Parts & Auxiliary Equipment \u2014 Kerke\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Kerke\"},\"description\":\"Screw elements, barrels and shafts for twin-screw and single-screw extruders \u2014 common sizes in stock (24\u201348 h dispatch), specials machined to drawing. 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Mixers, pelletizers and line fittings come from the same floor, so one [&#8230;]\n","protected":false},"author":0,"featured_media":1938,"parent":11,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"footnotes":""},"application":[],"app_group":[],"class_list":["post-21","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/21","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=21"}],"version-history":[{"count":0,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/21\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/11"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/media\/1938"}],"wp:attachment":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/media?parent=21"}],"wp:term":[{"taxonomy":"application","embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/application?post=21"},{"taxonomy":"app_group","embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/app_group?post=21"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}