{"id":395,"date":"2026-11-06T21:32:00","date_gmt":"2026-11-06T13:32:00","guid":{"rendered":"https:\/\/kerkepm.com\/knowledge\/twin-screw-extruder-size-chart\/"},"modified":"2026-11-08T20:42:56","modified_gmt":"2026-11-08T12:42:56","slug":"twin-screw-extruder-size-chart","status":"publish","type":"page","link":"https:\/\/kerkepm.com\/es\/knowledge\/twin-screw-extruder-size-chart\/","title":{"rendered":"Twin Screw Extruder Size Chart"},"content":{"rendered":"<div class=\"k3\">\n<div class=\"wrap\"><div class=\"crumbs\"><a href=\"\/\">Home<\/a><span>\/<\/span><a href=\"\/knowledge\/\">Knowledge<\/a><span>\/<\/span>Twin Screw Extruder Size Chart<\/div><\/div><div class=\"wrap\"><div class=\"hero\">\n<p class=\"kicker\">Selection \u00b7 6 min read<\/p>\n<h1>Twin Screw Extruder Size Chart: 16 mm to 135 mm, 1 to 4,000 kg\/h<\/h1>\n<p class=\"dek\">The complete model table with screw diameter, speed, motor, torque and reference output \u2014 plus how to read it without over-committing on capacity. A reference twin screw extruder size chart page from Kerke.<\/p>\n<div class=\"byline\"><div><b>Updated<\/b> 6 November 2026<\/div><div><b>Reviewed by<\/b> Kerke process team<\/div>\n<div><b>Basis<\/b> commissioning records, parameter table<\/div><\/div>\n<\/div><\/div>\n<div class=\"wrap\"><div class=\"grid\"><main>\n\n<p class=\"lead\">Sizing starts from the material and the required output, then moves to torque class, then to L\/D. Diameter is the last choice, not the first \u2014 two machines of the same diameter can differ by 80% in torque.<\/p>\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\">Model table<\/a><a href=\"#rm-s2\">Torque per unit volume: the number that decides<\/a><a href=\"#rm-s3\">How to read the output column honestly<\/a><a href=\"#rm-s4\">Then choose L\/D<\/a><a href=\"#rm-s5\">FAQ<\/a><\/nav><h2 class=\"sec\" id=\"chart\" id=\"rm-s1\">Model table<\/h2>\n<div class=\"tw\"><table>\n<caption><b>Table 1.<\/b> KTE model range. Output is reference, measured on the stated material and subject to a trial.<\/caption>\n<thead><tr><th scope=\"col\">Model<\/th><th scope=\"col\">Dia. (mm)<\/th><th scope=\"col\">Speed (rpm)<\/th><th scope=\"col\">Motor (kW)<\/th><th scope=\"col\">Torque (N\u00b7m)<\/th><th scope=\"col\">Output (kg\/h)<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>KTE-16<\/td><td class=\"num\">15.6<\/td><td class=\"num\">500<\/td><td class=\"num\">2.2<\/td><td class=\"num\">2\u00d718<\/td><td class=\"num\">1\u20135<\/td><\/tr>\n<tr><td>KTE-20B<\/td><td class=\"num\">21.7<\/td><td class=\"num\">500<\/td><td class=\"num\">4<\/td><td class=\"num\">2\u00d730<\/td><td class=\"num\">2\u201315<\/td><\/tr>\n<tr><td>KTE-36B<\/td><td class=\"num\">35.6<\/td><td class=\"num\">500\u2013600<\/td><td class=\"num\">18.5\u201322<\/td><td class=\"num\">2\u00d7210<\/td><td class=\"num\">20\u2013100<\/td><\/tr>\n<tr><td>KTE-50B<\/td><td class=\"num\">50.5<\/td><td class=\"num\">500\u2013600<\/td><td class=\"num\">55\u201375<\/td><td class=\"num\">2\u00d7525<\/td><td class=\"num\">80\u2013200<\/td><\/tr>\n<tr><td>KTE-65B<\/td><td class=\"num\">62.4<\/td><td class=\"num\">500\u2013600<\/td><td class=\"num\">90\u2013110<\/td><td class=\"num\">2\u00d7860<\/td><td class=\"num\">200\u2013450<\/td><\/tr>\n<tr><td>KTE-65D<\/td><td class=\"num\">62.4<\/td><td class=\"num\">300\u2013800<\/td><td class=\"num\">132\u2013160<\/td><td class=\"num\">2\u00d71,530<\/td><td class=\"num\">350\u2013600<\/td><\/tr>\n<tr><td>KTE-75B<\/td><td class=\"num\">71<\/td><td class=\"num\">500\u2013600<\/td><td class=\"num\">132\u2013160<\/td><td class=\"num\">2\u00d71,530<\/td><td class=\"num\">300\u2013800<\/td><\/tr>\n<tr><td>KTE-95B<\/td><td class=\"num\">93<\/td><td class=\"num\">500\u2013600<\/td><td class=\"num\">250\u2013315<\/td><td class=\"num\">2\u00d73,000<\/td><td class=\"num\">800\u20131,500<\/td><\/tr>\n<tr><td>KTE-135D<\/td><td class=\"num\">135<\/td><td class=\"num\">500\u2013800<\/td><td class=\"num\">500\u20131,000<\/td><td class=\"num\">2\u00d77,800<\/td><td class=\"num\">1,500\u20134,000<\/td><\/tr>\n<\/tbody><\/table><\/div>\n\n<h2 class=\"sec\" id=\"torque\" id=\"rm-s2\">Torque per unit volume: the number that decides<\/h2>\n<p>Specific torque is torque divided by the centreline distance cubed (T\/A\u00b3). B-class machines run at 6\u20138 and cover most masterbatch and compounding work; D-class at 8\u201312 for high filler, glass fibre and high output. A KTE-65B and a KTE-65D share the same screw diameter; the D carries 78% more torque and costs roughly 35% more.<\/p>\n\n<h2 class=\"sec\" id=\"reading\" id=\"rm-s3\">How to read the output column honestly<\/h2>\n<ul>\n<li>The lower number is a demanding formulation \u2014 high filler, high pigment, high fibre.<\/li>\n<li>The upper number is a favourable one \u2014 unfilled PE or PP at moderate rpm.<\/li>\n<li>For loose film and flake, halve it: bulk density, not the machine, is the limit.<\/li>\n<li>Quote the range to your customer, never the top number. The top number belongs to a trial report, not to a contract.<\/li>\n<\/ul>\n\n<h2 class=\"sec\" id=\"ld\" id=\"rm-s4\">Then choose L\/D<\/h2>\n<p>32\u201336 for simple filling; 40\u201344 for masterbatch with dispersion; 44\u201348 for reinforcement with side feed and one vacuum; 52\u201360 for reactive extrusion with two vents and liquid injection. Every extra 4D adds residence time and mixing, and costs output.<\/p>\n\n<h2 class=\"sec\" id=\"faq\" id=\"rm-s5\">FAQ<\/h2>\n<details open><summary>What size machine do I need for 500 kg\/h of filler masterbatch?<\/summary><p>KTE-75B on a single stage at 80\u201382% filling, or KTE\/SE-65\/150 two-stage above 85%. Both are quoted in the 400\u2013700 kg\/h band depending on filler grade.<\/p><\/details><details><summary>Is a bigger machine always more productive per kW?<\/summary><p>Yes, up to a point: specific energy falls as diameter grows, but so does the minimum stable output. A 135 mm machine cannot run economically at 300 kg\/h.<\/p><\/details><details><summary>Why do two catalogues quote different output for the same model?<\/summary><p>Different reference materials. We quote by material family and always state the assumption; a number without a material attached is marketing, not engineering.<\/p><\/details>\n<div class=\"method\"><h2 id=\"rm-s6\">Where these numbers come from<\/h2>\n<p>Values are drawn from the Kerke parameter table, commissioning records and service reports from lines in the field. Temperature windows and consumption figures are typical ranges \u2014 confirm on your own material before they become a production setpoint.<\/p><\/div>\n<div class=\"related\"><h2 id=\"rm-s7\">Related reading<\/h2><div class=\"rel-grid\"><a class=\"rel\" href=\"\/knowledge\/twin-screw-extruder-startup\/\"><span>Knowledge<\/span>Twin Screw Extruder Startup: The 9-Step Sequence That Protects the Screw<\/a><a class=\"rel\" href=\"\/knowledge\/pelletizing-methods-compared\/\"><span>Knowledge<\/span>Seven Pelletizing Methods Compared: Strand, Water Ring, Underwater, Hot Face<\/a><\/div><\/div>\n<div class=\"cta\"><div><b>Tell us your material \u2014 we will tell you the line<\/b><p>Send 25\u201350 kg and we run it on our lab extruder: pellets, running video and a capacity report back in 3\u20137 days.<\/p><\/div>\n<div class=\"acts\"><a href=\"\/get-a-quote\/\">Get a quote<\/a>\n<a class=\"alt\" href=\"\/get-a-quote\/#trial\">Send material for trial<\/a><\/div><\/div>\n<\/main>\n<aside><h5>On this page<\/h5><ol><li><a href=\"#chart\">Model table<\/a><\/li><li><a href=\"#torque\">Torque per unit volume: the number that decides<\/a><\/li><li><a href=\"#reading\">How to read the output column honestly<\/a><\/li><li><a href=\"#ld\">Then choose L\/D<\/a><\/li><li><a href=\"#faq\">FAQ<\/a><\/li><\/ol>\n<div class=\"sidecard\"><b>Question not covered?<\/b><p>Send the material, the machine model and the symptom. We answer with a parameter sheet, not a brochure.<\/p>\n<a class=\"btn\" href=\"\/get-a-quote\/\">Ask an engineer<\/a>\n<a class=\"btn ghost\" href=\"\/knowledge\/\">All articles<\/a><\/div><\/aside><\/div><\/div>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"TechArticle\", \"headline\": \"Twin Screw Extruder Size Chart: 16 mm to 135 mm, 1 to 4,000 kg\/h\", \"description\": \"The complete model table with screw diameter, speed, motor, torque and reference output \u2014 plus how to read it without over-committing on capacity.\", \"datePublished\": \"2026-11-06\", \"dateModified\": \"2026-11-06\", \"inLanguage\": \"en\", \"author\": {\"@type\": \"Organization\", \"name\": \"Kerke Extrusion Equipment\"}, \"mainEntityOfPage\": \"https:\/\/www.kerkepm.com\/knowledge\/twin-screw-extruder-size-chart\/\"}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What size machine do I need for 500 kg\/h of filler masterbatch?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"KTE-75B on a single stage at 80\u201382% filling, or KTE\/SE-65\/150 two-stage above 85%. 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We quote by material family and always state the assumption; a number without a material attached is marketing, not engineering.\"}}]}]}<\/script>\n<div class=\"wrap\"><section class=\"k3-more\" id=\"rm-more\"><h2>Twin screw extruder size chart \u2014 the short version<\/h2><figure class=\"k3-fig\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/11\/kte-65b-co-rotating-twin-screw-extruder-01-1200.webp\" alt=\"twin screw extruder size chart\" loading=\"lazy\" width=\"1200\" height=\"675\"><figcaption>Kerke test line, Nanjing \u2014 where the figures on this page were measured<\/figcaption><\/figure><p>Note on Twin screw extruder size chart: every figure on this page is a reference range measured on Kerke's own test line in Nanjing, not a catalogue maximum. If your material differs from the one in the table, send 25\u201350 kg and we will replace the range with a measured number.<\/p><p class=\"k3-rel\"><b>Related on this site:<\/b> <a href=\"\/machines\/co-rotating-twin-screw-extruder\/\">Twin screw extruder range<\/a> \u00b7 <a href=\"\/applications\/\">Extrusion lines by application<\/a> \u00b7 <a href=\"\/get-a-quote\/\">free extrusion line quotation<\/a> \u00b7 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Pelletizing\" target=\"_blank\" rel=\"noopener\">Wikipedia: Pelletizing<\/a><\/p><\/section><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Home\/Knowledge\/Twin Screw Extruder Size Chart Selection \u00b7 6 min read Twin Screw Extruder Size Chart: 16 mm to 135 mm, 1 to 4,000 kg\/h The complete model table with screw diameter, speed, motor, torque and reference output \u2014 plus how to read it without over-committing on capacity. 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