{"id":2782,"date":"2026-11-11T19:46:54","date_gmt":"2026-11-11T11:46:54","guid":{"rendered":"https:\/\/kerkepm.com\/machines\/pelletizing-systems\/water-strand-pelletizing\/"},"modified":"2026-11-11T23:40:50","modified_gmt":"2026-11-11T15:40:50","slug":"water-strand-pelletizing","status":"publish","type":"page","link":"https:\/\/kerkepm.com\/es\/machines\/pelletizing-systems\/water-strand-pelletizing\/","title":{"rendered":"Water-Cooled Strand Pelletizing"},"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><a href=\"\/machines\/pelletizing-systems\/\">Pelletizing systems<\/a><span>\/<\/span>Water-Cooled Strand Pelletizing<\/div><\/div><div class=\"wrap\"><div class=\"hero\">\r\n<p class=\"kicker\">Pelletizing \u00b7 Water-Cooled Strand Pelletizing<\/p>\r\n<h1>Water-Cooled Strand Pelletizing: How Kerke Builds It<\/h1>\r\n<p class=\"dek\">Strands of melt pulled into a water bath, dried and cut into uniform cylindrical pellets \u2014 the workhorse for filler and colour masterbatch up to 70% filler and for PA, PBT and PC engineering compounds.<\/p>\r\n<div class=\"byline\"><div><b>Updated<\/b> 11 November 2026<\/div><div><b>Scope<\/b> Masterbatch \u00b7 engineering plastics\r\n<\/div><div><b>Output<\/b> 100\u20132,000 kg\/h<\/div><div><b>Pellet<\/b> Uniform cylinder<\/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\/pel-water-strand-s1.webp\" alt=\"Water-Cooled Strand Pelletizing \u2014 workshop photo 1, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Water-Cooled Strand Pelletizing \u2014 workshop photo 1, Kerke workshop, Nanjing<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/pel-water-strand-s2.webp\" alt=\"Water-Cooled Strand Pelletizing \u2014 workshop photo 2, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Water-Cooled Strand Pelletizing \u2014 workshop photo 2, Kerke workshop, Nanjing<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/pel-water-strand-s3.webp\" alt=\"Water-Cooled Strand Pelletizing \u2014 workshop photo 3, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Water-Cooled Strand Pelletizing \u2014 workshop photo 3, Kerke workshop, Nanjing<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/pel-water-strand-s4.webp\" alt=\"Water-Cooled Strand Pelletizing \u2014 workshop photo 4, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Water-Cooled Strand Pelletizing \u2014 workshop photo 4, Kerke workshop, Nanjing<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/pel-water-strand-s5.webp\" alt=\"Water-Cooled Strand Pelletizing \u2014 workshop photo 5, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Water-Cooled Strand Pelletizing \u2014 workshop photo 5, Kerke workshop, Nanjing<\/span><\/div><div class=\"ms-slide\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/pel-water-strand-s6.webp\" alt=\"Water-Cooled Strand Pelletizing \u2014 workshop photo 6, Kerke workshop, Nanjing\" loading=\"lazy\"><span class=\"ms-cap\">Water-Cooled Strand Pelletizing \u2014 workshop photo 6, Kerke workshop, Nanjing<\/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><\/div>\r\n<\/div>\r\n<div class=\"appmedia-text\">\r\n<nav class=\"wp-block-rank-math-toc-block k3-toc\" aria-label=\"On this page\"><b>On this page:<\/b><a href=\"#answer\">Quick answer<\/a><a href=\"#how\">How it works<\/a><a href=\"#fit\">Where it wins<\/a><a href=\"#specs\">Reference data<\/a><a href=\"#faq\">FAQ<\/a><\/nav>\r\n<section class=\"qa\" id=\"answer\"><h2 id=\"rm-s1\">Quick answer<\/h2><p>Water-cooled strand pelletizing pulls extruded strands through a flowing water bath, wipes them dry and cuts them at a speed-controlled pelletizer. It is the default choice for filler and colour masterbatch, PA\/PBT\/PC compounds and recycled PET \u2014 simple, cheap to maintain and easy to change over between colours.<\/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>100\u20132,000 kg\/h<\/b><span>capacity range<\/span><\/div><div class=\"stat\"><b>3\u20134 mm<\/b><span>strand diameter<\/span><\/div><div class=\"stat\"><b>70%<\/b><span>max filler on strand<\/span><\/div><div class=\"stat\"><b>20\u201340 min<\/b><span>colour change<\/span><\/div><\/div>\r\n<p class=\"note\">Workshop photos \u2014 shot on our own lines in Nanjing, not stock images.<\/p>\r\n\r\n<h2 class=\"sec\" id=\"how\">How the water-cooled strand pelletizing line works<\/h2>\r\n<ol>\r\n<li>Melt leaves the die head as 3\u20134 mm strands through a heated die plate.<\/li><li>Strands drop into a stainless water trough with controlled flow and temperature (typically 25\u201335 \u00b0C).<\/li><li>An air knife or suction wiper removes surface water before the pelletizer.<\/li><li>A two-knife pelletizer with spring-loaded strands guide cuts dry strands to 3\u20134 mm pellets.<\/li><li>Pellets are conveyed to a vibrating screener and hopper; fines return to the line.<\/li>\r\n<\/ol>\r\n\r\n<h2 class=\"sec\" id=\"fit\">Where this method wins<\/h2>\r\n<p>Water-cooled strand wins where pellet shape must be uniform and the material tolerates full water contact. It stays our recommendation for filler masterbatch up to about 70% CaCO\u2083 or talc, colour masterbatch, PA6\/PA66, PBT, PC and recycled PET\/PP strands. Above 70\u201385% filler the strands begin to break; at that point move to a hot die-face method.<\/p>\r\n\r\n<h2 class=\"sec\" id=\"specs\">Reference data<\/h2>\r\n<div class=\"tw\"><table><caption><b>Table 1.<\/b> Water-Cooled Strand Pelletizing \u2014 reference selection data.<\/caption>\r\n<thead><tr><th scope=\"col\">Item<\/th><th scope=\"col\">Value<\/th><\/tr><\/thead><tbody><tr><td class=\"num\">Best for<\/td><td class=\"num\">Filler\/colour masterbatch, PA, PBT, PC, recycled PET<\/td><\/tr><tr><td class=\"num\">Output range<\/td><td class=\"num\">100\u20132,000 kg\/h (die-hole count decides)<\/td><\/tr><tr><td class=\"num\">Pellet shape<\/td><td class=\"num\">Uniform cylinder, low dust<\/td><\/tr><tr><td class=\"num\">Watch out<\/td><td class=\"num\">Floor space, strand breakage at high filler, colour-change purging<\/td><\/tr><\/tbody><\/table><\/div>\r\n<p class=\"note\">Reference output measured on the stated material family; subject to a material trial. Die hole count sets the capacity ceiling \u2014 check the die, not the label.<\/p>\r\n\r\n<h2 class=\"sec\" id=\"notes\">Selection notes from our floor<\/h2>\r\n<p>Keep the water bath short but temperature-controlled: cold water stiffens high-filler strands and they snap at the guide; warm water leaves strands soft and they flatten under the knife. For colour work, choose an open trough with quick-release strand guides \u2014 changeover time drops from hours to minutes.<\/p>\r\n\r\n<h2 class=\"sec\" id=\"faq\">FAQ<\/h2>\r\n<details open><summary>What filler level can water-cooled strand handle?<\/summary><p>We commission strand lines routinely up to 70% CaCO\u2083 or talc. Between 70% and 85% it depends on the polymer and strand diameter \u2014 test it. Above 85%, use water ring or air-cooled hot die-face cutting.<\/p><\/details><details><summary>How do I avoid wet pellets?<\/summary><p>The air knife is the critical part, not the pelletizer. Set the squeegee gap and air velocity so strands enter the cutter visibly dry; residual moisture below 0.1% is normal on a tuned line.<\/p><\/details><details><summary>How long does a colour change take?<\/summary><p>With open troughs and quick-release guides, 20\u201340 minutes including purging. Closed troughs take longer \u2014 we recommend open ones for colour houses.<\/p><\/details>\r\n\r\n<div class=\"method\"><h2 id=\"rm-s7\">Where these numbers come from<\/h2>\r\n<p>Output ranges, pellet shapes and watch-outs come from Kerke commissioning records and the pelletizing systems parameter table. Where a catalogue value and a trial value disagree, the trial value is the one we quote.<\/p>\r\n<p>Reviewed by the Kerke process team, Nanjing. Page updated 11 November 2026.<\/p><\/div>\r\n\r\n<div class=\"related\"><h2 id=\"rm-s8\">Related<\/h2><div class=\"rel-grid\"><a class=\"rel\" href=\"\/machines\/co-rotating-twin-screw-extruder\/\"><span>Machine<\/span>Co-rotating twin screw KTE<\/a><a class=\"rel\" href=\"\/applications\/filler-masterbatch-line\/\"><span>Application<\/span>Filler Masterbatch Extruder Line<\/a><a class=\"rel\" href=\"\/applications\/color-masterbatch-extruder-line\/\"><span>Application<\/span>Color Masterbatch Extruder Line<\/a><a class=\"rel\" href=\"\/machines\/pelletizing-systems\/\"><span>Machine<\/span>Pelletizing systems \u2014 7 methods compared<\/a><\/div><\/div>\r\n<div class=\"cta\"><div><b>Not sure which pelletizing method fits your material?<\/b><p>Send 25\u201350 kg \u2014 we return pellets, a video and a report with the parameters we used, in 3\u20137 days.<\/p><\/div>\r\n<div class=\"acts\"><a href=\"\/get-a-quote\/\">Get 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=\"#how\">How it works<\/a><\/li><li><a href=\"#fit\">Where it wins<\/a><\/li><li><a href=\"#specs\">Reference data<\/a><\/li><li><a href=\"#faq\">FAQ<\/a><\/li><\/ol>\r\n<div class=\"sidecard\"><b>Model or trial first?<\/b><p>A model number tells you the envelope; a trial tells you the output. We quote the second one.<\/p>\r\n<a class=\"btn\" href=\"\/get-a-quote\/\">Request a quote<\/a>\r\n<a class=\"btn ghost\" href=\"\/machines\/pelletizing-systems\/\">All 7 pelletizing methods<\/a><\/div><\/aside><\/div><\/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\": \"Water-Cooled Strand Pelletizing \u2014 Kerke\", \"brand\": {\"@type\": \"Brand\", \"name\": \"Kerke\"}, \"description\": \"Strands of melt pulled into a water bath, dried and cut into uniform cylindrical pellets \u2014 the workhorse for filler and colour masterbatch up to 70% filler and for PA, PBT and PC e\", \"category\": \"Pelletizing systems\", \"additionalProperty\": [{\"@type\": \"PropertyValue\", \"name\": \"Output\", \"value\": \"100\u20132,000 kg\/h\"}, {\"@type\": \"PropertyValue\", \"name\": \"Pellet shape\", \"value\": \"Uniform cylinder\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What filler level can water-cooled strand handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"We commission strand lines routinely up to 70% CaCO\u2083 or talc. 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Closed troughs take longer \u2014 we recommend open ones for colour houses.\"}}]}, {\"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/www.kerkepm.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Machines\", \"item\": \"https:\/\/www.kerkepm.com\/machines\/\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Pelletizing systems\", \"item\": \"https:\/\/www.kerkepm.com\/machines\/pelletizing-systems\/\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"Water-Cooled Strand Pelletizing\"}]}]}<\/script>\r\n<div class=\"wrap\"><section class=\"k3-more\" id=\"rm-more\"><h2>Water-Cooled Strand Pelletizing \u2014 the short version<\/h2><p>What separates pelletizing methods is where the cut happens and how much water the pellets see. Water-cooled strand wins on simplicity and changeover speed \u2014 shortlist it first for masterbatch and engineering compounds, then confirm the choice on a trial with your own powder.<\/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=\"\/knowledge\/pelletizing-methods-compared\/\">Pelletizing methods compared<\/a> \u00b7 <a href=\"\/get-a-quote\/\">free extrusion line quotation<\/a><\/p><\/section><\/div>\r\n<\/div>\r\n","protected":false},"excerpt":{"rendered":"<p>Home\/Machines\/Pelletizing systems\/Water-Cooled Strand Pelletizing Pelletizing \u00b7 Water-Cooled Strand Pelletizing Water-Cooled Strand Pelletizing: How Kerke Builds It Strands of melt pulled into a water bath, dried and cut into uniform cylindrical pellets \u2014 the workhorse for filler and colour masterbatch up to 70% filler and for PA, PBT and PC engineering compounds. Updated 11 November 2026Scope [&#8230;]\n","protected":false},"author":0,"featured_media":0,"parent":19,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"application":[],"app_group":[],"class_list":["post-2782","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/2782","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=2782"}],"version-history":[{"count":0,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/2782\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/pages\/19"}],"wp:attachment":[{"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/media?parent=2782"}],"wp:term":[{"taxonomy":"application","embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/application?post=2782"},{"taxonomy":"app_group","embeddable":true,"href":"https:\/\/kerkepm.com\/es\/wp-json\/wp\/v2\/app_group?post=2782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}