{"id":3055,"date":"2026-10-09T09:58:17","date_gmt":"2026-10-09T09:58:17","guid":{"rendered":"https:\/\/www.cybernetik.com\/blog\/?p=3055"},"modified":"2026-10-09T10:00:53","modified_gmt":"2026-10-09T10:00:53","slug":"powder-grinder-machines-selection-guide-in","status":"publish","type":"post","link":"https:\/\/www.cybernetik.com\/blog\/process\/powder-grinder-machines-selection-guide-in\/","title":{"rendered":"Powder Grinder Machines: Selection Guide for Industrial Processing"},"content":{"rendered":"\n<div class=\"wp-block-group has-white-color has-text-color has-background has-link-color wp-elements-a2b29eae85673cfd727400bd2f6fe950 is-layout-constrained wp-container-core-group-is-layout-800b4e77 wp-block-group-is-layout-constrained\" style=\"border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-left-radius:5px;border-bottom-right-radius:5px;background-color:#12263a;margin-bottom:20px;padding-top:10px;padding-right:30px;padding-bottom:30px;padding-left:30px\">\n<h2 class=\"wp-block-heading has-white-color has-text-color has-link-color wp-elements-19215f1e6a1396f83f0257af42631315\" style=\"line-height:1.4\">Key takeaways<\/h2>\n\n\n\n<div style=\"height:6px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<style>.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_9ae567-85:not(.this-stops-third-party-issues){margin-top:0px;margin-bottom:0px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_9ae567-85 ul.kt-svg-icon-list:not(.this-prevents-issues):not(.this-stops-third-party-issues):not(.tijsloc){margin-top:0px;margin-right:0px;margin-bottom:var(--global-kb-spacing-sm, 1.5rem);margin-left:0px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_9ae567-85 ul.kt-svg-icon-list{grid-row-gap:35px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_9ae567-85 .kb-svg-icon-wrap{font-size:10px;color:#ef8e27;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_9ae567-85 ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap .kt-svg-icon-list-single{margin-right:10px;}.kt-svg-icon-list-items3055_9ae567-85 ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap, .kt-svg-icon-list-items3055_9ae567-85 ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap a{line-height:1.2em;}.kt-svg-icon-list-items3055_9ae567-85 ul.kt-svg-icon-list .kt-svg-icon-list-level-0 .kt-svg-icon-list-single svg{font-size:20px;}<\/style>\n<div class=\"wp-block-kadence-iconlist kt-svg-icon-list-items kt-svg-icon-list-items3055_9ae567-85 kt-svg-icon-list-columns-1 alignnone kt-list-icon-aligntop\"><ul class=\"kt-svg-icon-list\"><style>.kt-svg-icon-list-item-3055_7a5b32-b5 .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_7a5b32-b5\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\">Specify particle size precisely using top size, median size (d50) and upper size (d90), rather than vague terms such as \u201cfine powder.\u201d Mesh or micron-based targets help suppliers select equipment that meets product requirements.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_e1399a-cf .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_e1399a-cf\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\">Match the grinder to material properties, including hardness, friability, heat sensitivity, oil content, moisture, abrasiveness and fibrous structure. Impact mills suit brittle materials, while cutting mills are better for tough, fibrous materials.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_c807b2-c1 .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_c807b2-c1\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\">Different mill types serve different needs: hammer mills for coarse-to-medium grinding, pin mills for fine brittle powders, air classifying mills for controlled particle sizes, and jet mills for ultra-fine or heat-sensitive products.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_85d451-d3 .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_85d451-d3\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\">Closed-circuit grinding with a sifter or classifier removes correctly sized particles and returns oversize material for regrinding, reducing unnecessary energy consumption and heat while improving particle-size consistency.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_e4daa4-ad .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_e4daa4-ad\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\">Grinder throughput must be evaluated at the required particle size and on the actual material. Consistent feeding, pre-grinding lump breaking, inlet magnets, dust collection, wear management and explosion protection are also essential for reliable, safe operation.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_dc2027-3c .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_dc2027-3c\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\">Cybernetik integrates high-speed fine grinders, turbo and vibro sifters, lump breakers, conveying and packing systems into complete powder-processing lines, with grinding capabilities down to 30 microns and ATEX construction options for combustible dusts.<\/span><\/li>\n<\/ul><\/div>\n<\/div>\n\n\n\n<p class=\"has-link-color wp-elements-69fae116cbf1eb15721b09e1564a5b00 wp-block-paragraph\">Ask for a grinder that makes &#8220;fine powder&#8221; and you will get very different machines from different suppliers, because fine means nothing without a number. One plant\u2019s fine powder is another plant\u2019s coarse grit, and the equipment needed to reach 150 microns is not the equipment needed to reach 30.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing a powder grinder starts with pinning that number down, then matching it to how the material actually breaks. Get those two right and the rest of the selection follows. Get them vague and the machine that arrives may run perfectly while producing the wrong product.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide covers how to specify fineness properly, how material properties narrow the choice, the main mill types, and the features that decide whether a grinder performs in production.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Start With a Number, Not an Adjective<\/strong><\/h3>\n\n\n\n<p class=\"has-link-color wp-elements-46e870df47d344ce285b5adb4636079a wp-block-paragraph\">Particle size is best described as a distribution rather than a single figure, because any ground powder contains a range of sizes. Three measures do most of the work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_ace233-a0:not(.this-stops-third-party-issues){margin-top:0px;margin-bottom:0px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_ace233-a0 ul.kt-svg-icon-list:not(.this-prevents-issues):not(.this-stops-third-party-issues):not(.tijsloc){margin-top:0px;margin-right:0px;margin-bottom:var(--global-kb-spacing-sm, 1.5rem);margin-left:0px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_ace233-a0 ul.kt-svg-icon-list{grid-row-gap:35px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_ace233-a0 .kb-svg-icon-wrap{font-size:10px;color:#ef8e27;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_ace233-a0 ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap .kt-svg-icon-list-single{margin-right:10px;}.kt-svg-icon-list-items3055_ace233-a0 ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap, .kt-svg-icon-list-items3055_ace233-a0 ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap a{line-height:1.2em;}.kt-svg-icon-list-items3055_ace233-a0 ul.kt-svg-icon-list .kt-svg-icon-list-level-0 .kt-svg-icon-list-single svg{font-size:20px;}<\/style>\n<div class=\"wp-block-kadence-iconlist kt-svg-icon-list-items kt-svg-icon-list-items3055_ace233-a0 kt-svg-icon-list-columns-1 alignnone kt-list-icon-aligntop\"><ul class=\"kt-svg-icon-list\"><style>.kt-svg-icon-list-item-3055_38ed87-6c .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_38ed87-6c\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Top size. <\/strong>The largest particles allowed, often set by a screen or sieve. Important where oversize particles cause problems for the customer.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_717087-40 .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_717087-40\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Median size. <\/strong>Often written as d50, the size that half the particles fall below. It describes the typical particle.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_feb951-0d .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_feb951-0d\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Upper size. <\/strong>Often written as d90, the size that nine in ten particles fall below. It shows how much of the coarse end remains.<\/span><\/li>\n<\/ul><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Many specifications in industry are still given in mesh, which describes sieve openings. It helps to know roughly how mesh and microns relate.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Sieve mesh (approximate)<\/strong><\/th><th><strong>Opening size (approximate)<\/strong><\/th><th><strong>Typical description<\/strong><\/th><\/tr><\/thead><tbody><tr><td>100 mesh<\/td><td>About 150 microns<\/td><td>Fine powder<\/td><\/tr><tr><td>200 mesh<\/td><td>About 75 microns<\/td><td>Very fine powder<\/td><\/tr><tr><td>325 mesh<\/td><td>About 45 microns<\/td><td>Extra fine powder<\/td><\/tr><tr><td>400 mesh<\/td><td>About 37 microns<\/td><td>Ultra fine, approaching specialist milling<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A specification that says &#8220;95 percent through 200 mesh&#8221; is far more useful to a supplier than &#8220;fine,&#8221; because it tells them exactly what the machine has to achieve.<\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1716\" height=\"979\" src=\"https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/10\/Open-and-Closed-Circuit-Grinding.webp\" alt=\"\" class=\"wp-image-3061\" style=\"border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-left-radius:5px;border-bottom-right-radius:5px\" srcset=\"https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/10\/Open-and-Closed-Circuit-Grinding.webp 1716w, https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/10\/Open-and-Closed-Circuit-Grinding-300x171.webp 300w, https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/10\/Open-and-Closed-Circuit-Grinding-1024x584.webp 1024w, https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/10\/Open-and-Closed-Circuit-Grinding-768x438.webp 768w, https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/10\/Open-and-Closed-Circuit-Grinding-1536x876.webp 1536w\" sizes=\"(max-width: 1716px) 100vw, 1716px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Reduction Ratio<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The second number is how much smaller the product has to be than the feed. Material arriving as 10 mm granules and leaving as 100 micron powder has been reduced by a factor of a hundred. That ratio matters because most mills work best within a certain range.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Where the ratio is very large, a single machine is often not the best answer. A coarse stage followed by a fine stage usually does the job more efficiently, with less heat and less wear, than asking one mill to take material all the way down in one pass.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How the Material Breaks<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Materials do not all break the same way, and that decides which kind of mill will work.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Material property<\/strong><\/th><th><strong>Why it matters<\/strong><\/th><th><strong>What it points toward<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Hardness<\/td><td>Harder materials wear grinding parts and resist breaking<\/td><td>Wear-resistant parts, and mill types suited to hard materials<\/td><\/tr><tr><td>Friability<\/td><td>Brittle materials break easily; tough ones deform instead<\/td><td>Impact mills for brittle materials, cutting or shearing for tough ones<\/td><\/tr><tr><td>Heat sensitivity<\/td><td>Grinding energy becomes heat that can melt, burn or degrade product<\/td><td>Airflow and cooling, lower tip speeds or cryogenic grinding<\/td><\/tr><tr><td>Fat or oil content<\/td><td>Oily materials smear and clog screens<\/td><td>Cooling, careful screen choice and mills that tolerate stickiness<\/td><\/tr><tr><td>Moisture<\/td><td>Damp material cakes and blinds screens<\/td><td>Drying first, or mills with good airflow<\/td><\/tr><tr><td>Abrasiveness<\/td><td>Abrasive particles wear beaters, pins and screens quickly<\/td><td>Hardened or replaceable wear parts and planned maintenance<\/td><\/tr><tr><td>Fibrous structure<\/td><td>Fibers wrap and tangle rather than shatter<\/td><td>Cutting mills rather than impact mills<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Two rows catch people out most often. Fibrous materials such as some herbs, plant matter or plastics tend to wrap around beaters and pins rather than shattering, so impact mills struggle with them and cutting mills do better. And heat-sensitive or oily materials, which include many spices, sugars and food ingredients, soften and smear if grinding generates too much heat, blinding screens and changing the product.<\/p>\n\n\n\n<p class=\"has-link-color wp-elements-9cde33208a425ea1595470e4c430e4c4 wp-block-paragraph\">The heat and aroma problem in spice grinding specifically, where volatile oils are lost if the mill runs hot, is covered in the guide to <a href=\"https:\/\/www.cybernetik.com\/blog\/process\/electric-spice-grinders-industrial-buying-guide-in\/\">electric spice grinders for industrial processing<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>The Main Mill Types<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Mill type<\/strong><\/th><th><strong>How it reduces size<\/strong><\/th><th><strong>Suits<\/strong><\/th><th><strong>Limitation<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Hammer mill<\/td><td>Swinging beaters strike material, and a screen sets the top size<\/td><td>Coarse to medium grinding of a wide range of materials<\/td><td>Limited fineness and heat build-up at finer screens<\/td><\/tr><tr><td>Pin mill<\/td><td>Pins on high-speed discs shatter material as it passes between them<\/td><td>Fine grinding of brittle, non-abrasive materials<\/td><td>Wear on abrasive materials, and heat<\/td><\/tr><tr><td>Air classifying mill<\/td><td>Grinding combined with a built-in classifier that returns oversize<\/td><td>Fine powders needing a tight particle size range<\/td><td>Higher cost and more complexity<\/td><\/tr><tr><td>Jet mill<\/td><td>Particles collide with each other in high-speed air streams<\/td><td>Ultra-fine grinding, heat-sensitive and high-purity products<\/td><td>High energy use and lower throughput<\/td><\/tr><tr><td>Roller mill<\/td><td>Material is crushed between rotating rolls<\/td><td>Controlled, lower-fines reduction such as flour milling<\/td><td>Less suited to very fine powders<\/td><\/tr><tr><td>Cutting mill<\/td><td>Rotating knives cut material against fixed blades<\/td><td>Fibrous, tough or elastic materials<\/td><td>Not designed for fine powders from brittle materials<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For most food, chemical and pharmaceutical powders in the fine range, the choice usually comes down to pin mills, air classifying mills and high speed fine grinders. Jet mills come in when particles need to be extremely fine or the product cannot tolerate heat or contamination from grinding parts. Roller and cutting mills serve more specialized needs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Open and Closed Circuit Grinding<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is one of the most useful ideas in powder grinding, and it is often overlooked.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In open circuit, material passes through the mill once and whatever comes out is the product. To make sure nothing oversize gets through, the mill has to be run hard enough to grind everything below the target, which means the finer particles get ground again and again. That wastes energy, adds heat and creates excess fines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In closed circuit, the mill is paired with a sifter or classifier. Material that has already reached the target size is taken out as product, and only the oversize goes back to be ground again. The mill does less unnecessary work, runs cooler, uses less energy and produces a tighter size distribution.<\/p>\n\n\n\n<p class=\"has-link-color wp-elements-d9099c5aeb482785efc39335a660b7e4 wp-block-paragraph\">That is why grinding and sifting are so often specified together. A <a href=\"https:\/\/process.cybernetik.com\/products\/turbo-sifter.html\">turbo sifter<\/a> after the mill controls top size precisely and returns oversize for regrinding, which gives far better control than relying on the mill alone.<\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-7387b849 wp-block-group-is-layout-flex\">\n<p class=\"has-text-align-left wp-block-paragraph\" style=\"font-size:29px\"><img decoding=\"async\" class=\"wp-image-503\" style=\"width: 65px\" src=\"https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/05\/Frame-1.svg\" alt=\"\"><strong>&#8220;Grinding performance is not measured by throughput alone; the real benchmark is how consistently a machine achieves the required fineness on the actual production material.&#8221;<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-luminous-vivid-amber-color has-text-color has-link-color has-medium-font-size wp-elements-3cc671b03a440f3700a6ec32f9fcb913 is-horizontal is-content-justification-left is-nowrap is-layout-flex wp-container-core-group-is-layout-e8523bbf wp-block-group-is-layout-flex\" style=\"text-decoration:none\">\n<div class=\"wp-block-group is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-d9c85f36 wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image alignwide size-thumbnail\" style=\"margin-top:0;margin-right:0;margin-bottom:0;margin-left:0\"><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/05\/minus-2-150x150.png\" alt=\"\" class=\"wp-image-898\" srcset=\"https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/05\/minus-2-150x150.png 150w, https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/05\/minus-2-300x300.webp 300w, https:\/\/www.cybernetik.com\/blog\/wp-content\/uploads\/2026\/05\/minus-2.webp 512w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/process.cybernetik.com\/\" data-type=\"link\" data-id=\"https:\/\/process.cybernetik.com\/\">Cybernetik process automation team<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" style=\"font-size:34px\">See it in action<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Spice Grinding Mill | Cybernetik Food Process Solutions\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/H3mlaaOjArM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Throughput Always Comes With a Fineness<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A grinder rated at a certain number of kilograms per hour is only telling half the story. The same mill will produce far more coarse powder than fine powder, because grinding finer takes much more energy per kilogram.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That relationship is steep. Energy needed per kilogram rises sharply as the target size falls, so halving the particle size can take far more than twice the energy. Always ask for throughput at your target fineness, on your material. A figure quoted without a fineness is not a basis for comparison.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Prepare the Feed<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A grinder performs best when it receives a steady, consistent feed of the right size, free of anything that should not be there.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Steady feeding<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Surges overload the mill and starve it in turn, which makes particle size inconsistent and can trip the motor. A controlled feeder ahead of the mill keeps it working at a steady rate.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Breaking lumps first<\/strong><\/h4>\n\n\n\n<p class=\"has-link-color wp-elements-28b34fe18b9981b4ef338d115c542cb6 wp-block-paragraph\">Caked or lumpy feed arrives unevenly and can block the mill inlet. Breaking lumps back to their original size before grinding keeps feed consistent, a job covered in the article on <a href=\"https:\/\/www.cybernetik.com\/blog\/process\/lump-breakers-working-principle-applications\/\">lump breakers<\/a>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Removing metal<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Tramp metal such as bolts, wire and fragments entering a high-speed mill damages beaters and screens, and can spark. Magnets at the inlet protect the machine and remove a potential ignition source at the same time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Wear, Dust and Safety<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Wear<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Abrasive materials wear grinding parts steadily, and as parts wear, particle size drifts and energy use rises. Wear-resistant materials, replaceable parts and a planned maintenance schedule keep performance consistent instead of letting it slip quietly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Dust<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Grinding turns material into fine powder, and fine powder becomes airborne easily. Enclosed grinding with proper dust collection protects operators, keeps product from being lost and keeps the plant clean.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Explosion risk<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Many ground powders, including sugar, flour, starch and many chemicals, are combustible when fine and suspended in air. A grinder is where that fine dust is created, so explosion protection has to be designed in for these materials rather than added later.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Cleaning and Changeover<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In plants grinding more than one product, how quickly the mill can be opened, cleaned and checked often matters as much as its capacity. Easy access to the grinding chamber and screens, parts that come apart without tools and smooth surfaces all shorten changeovers and reduce the risk of one product carrying into the next.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Questions to Ask a Supplier<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>What throughput will this machine give at our target particle size, on our material?<\/li>\n\n\n\n<li>Will you grind a sample of our product and report the particle size distribution?<\/li>\n\n\n\n<li>Would closed circuit grinding with a sifter or classifier suit our specification?<\/li>\n\n\n\n<li>How is heat managed, and what temperature does the product reach?<\/li>\n\n\n\n<li>What wears, how fast on our material, and what do replacement parts cost?<\/li>\n\n\n\n<li>How is dust contained, and is the design suitable for combustible powders?<\/li>\n\n\n\n<li>How long does a full clean between products take?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A supplier willing to grind your material and give you real numbers is engineering the solution. One who quotes capacity without a fineness is guessing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Grinding Equipment from Cybernetik<\/strong><\/h2>\n\n\n\n<p class=\"has-link-color wp-elements-635c74133865a2201ede31a71a97d619 wp-block-paragraph\">Cybernetik builds grinding as part of complete powder processing lines, with the <a href=\"https:\/\/process.cybernetik.com\/products\/high-speed-fine-grinder.html\">high speed fine grinder<\/a> at the core and sifting, lump breaking, conveying and packing around it.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Cybernetik grinding and sizing equipment<\/strong><\/th><th><strong>Specification<\/strong><\/th><\/tr><\/thead><tbody><tr><td>High speed fine grinder<\/td><td>2,000 to 6,000 rpm, milling down to 30 microns<\/td><\/tr><tr><td>Grinder features<\/td><td>Air cooled seals, high performance bearings, inlet magnets and silencers<\/td><\/tr><tr><td>Turbo sifter<\/td><td>500 to 6,000 kg\/hr, mesh 7000 down to 40 microns, 100 to 300 NB, SS304 or SS316<\/td><\/tr><tr><td>Vibro sifter<\/td><td>100 to 5,000 kg\/hr, single and double deck<\/td><\/tr><tr><td>Lump breaker<\/td><td>Up to 6,000 kg\/hr, for conditioning feed before grinding<\/td><\/tr><tr><td>Spice grinding system<\/td><td>500 kg\/hr complete line, 40 micron minimum output<\/td><\/tr><tr><td>Sugar grinding system<\/td><td>1,200 kg\/hr complete line<\/td><\/tr><tr><td>Build standard<\/td><td>Hygienic cGMP construction, with ATEX options for combustible dusts<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">That combination reflects the points above. The fine grinder covers a wide speed range and reaches 30 microns, with inlet magnets removing tramp metal before it reaches the chamber. Turbo and vibro sifters make closed circuit grinding possible, controlling top size and returning oversize. The lump breaker conditions feed before it reaches the mill.<\/p>\n\n\n\n<p class=\"has-link-color wp-elements-de5c13563154a445bc323ac241061e66 wp-block-paragraph\">The same approach shows up in complete lines, such as the <a href=\"https:\/\/process.cybernetik.com\/solutions\/sugar-grinding-system.html\">sugar grinding system<\/a>, where intake, grinding, sifting, storage and packing work as one sequence with ATEX construction for a combustible product.<\/p>\n\n\n\n<p class=\"has-link-color wp-elements-69660521fc7b3d5a3d80045550f1feb7 wp-block-paragraph\">Cybernetik has been building automation for more than three decades. It is headquartered in Pune with facilities in Gujarat and Raigad and offices in the United States and UAE, and has installed over 6,000 systems in more than 30 countries, including over 400 custom automation solutions. More background is on the <a href=\"https:\/\/process.cybernetik.com\/about.html\">Cybernetik about page<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why manufacturers choose Cybernetik<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_457258-7c:not(.this-stops-third-party-issues){margin-top:0px;margin-bottom:0px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_457258-7c ul.kt-svg-icon-list:not(.this-prevents-issues):not(.this-stops-third-party-issues):not(.tijsloc){margin-top:0px;margin-right:0px;margin-bottom:var(--global-kb-spacing-sm, 1.5rem);margin-left:0px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_457258-7c ul.kt-svg-icon-list{grid-row-gap:35px;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_457258-7c .kb-svg-icon-wrap{font-size:10px;color:#ef8e27;}.wp-block-kadence-iconlist.kt-svg-icon-list-items3055_457258-7c ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap .kt-svg-icon-list-single{margin-right:10px;}.kt-svg-icon-list-items3055_457258-7c ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap, .kt-svg-icon-list-items3055_457258-7c ul.kt-svg-icon-list .kt-svg-icon-list-item-wrap a{line-height:1.2em;}.kt-svg-icon-list-items3055_457258-7c ul.kt-svg-icon-list .kt-svg-icon-list-level-0 .kt-svg-icon-list-single svg{font-size:20px;}<\/style>\n<div class=\"wp-block-kadence-iconlist kt-svg-icon-list-items kt-svg-icon-list-items3055_457258-7c kt-svg-icon-list-columns-1 alignnone kt-list-icon-aligntop\"><ul class=\"kt-svg-icon-list\"><style>.kt-svg-icon-list-item-3055_fb6d68-2f .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_fb6d68-2f\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Fine grinding to 30 microns. <\/strong>A high speed grinder with a wide speed range for different materials.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_ea551d-b1 .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_ea551d-b1\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Closed circuit capability. <\/strong>Sifters that control top size and return oversize, for tighter particle size and less wasted energy.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_c73557-6d .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_c73557-6d\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Protected at the inlet. <\/strong>Magnets remove tramp metal before it can damage the mill or spark.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_f17ef0-aa .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_f17ef0-aa\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Feed prepared properly. <\/strong>Lump breaking and controlled conveying ahead of the grinder.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_37bac8-ce .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_37bac8-ce\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Safe for combustible powders. <\/strong>ATEX construction available where fine dust creates explosion risk.<\/span><\/li>\n\n\n<style>.kt-svg-icon-list-item-3055_89fa35-92 .kt-svg-icon-list-text mark.kt-highlight{background-color:unset;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}<\/style>\n<li class=\"wp-block-kadence-listitem kt-svg-icon-list-item-wrap kt-svg-icon-list-item-3055_89fa35-92\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_circle kt-svg-icon-list-single\"><svg viewBox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"\/><\/svg><\/span><span class=\"kt-svg-icon-list-text\"><strong>Complete lines. <\/strong>Intake, grinding, sifting, storage and packing from one engineering team.<\/span><\/li>\n<\/ul><\/div>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-white-color has-text-color has-background has-link-color wp-elements-ac152bf2f15fc4c7252137b9076b5ae4 is-content-justification-space-between is-layout-flex wp-container-core-group-is-layout-bcf883e7 wp-block-group-is-layout-flex\" style=\"border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-left-radius:5px;border-bottom-right-radius:5px;background-color:#12263a;margin-bottom:20px;padding-top:20px;padding-right:30px;padding-bottom:30px;padding-left:30px\">\n<h3 class=\"wp-block-heading has-white-color has-text-color has-link-color wp-elements-f22099acdeda5e510eedec4b07580a36 wp-container-content-29dca9c1\" style=\"font-size:34px;font-style:normal;font-weight:400;line-height:1.4\">Want to know more about our solution?<\/h3>\n\n\n\n<div class=\"wp-block-buttons wp-container-content-69bc4bdf is-content-justification-right is-layout-flex wp-container-core-buttons-is-layout-88867f99 wp-block-buttons-is-layout-flex\" style=\"border-style:none;border-width:0px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px;margin-top:0;margin-bottom:0;padding-top:6;padding-right:6;padding-bottom:6;padding-left:6\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-fill\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color has-text-align-right wp-element-button\" href=\"https:\/\/meetings-eu1.hubspot.com\/anand-gaikar\" style=\"background-color:#ee8d26;padding-top:10px;padding-right:20px;padding-bottom:10px;padding-left:20px\">Book a call<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><strong>Frequently asked questions<\/strong><\/h2>\n\n\n<style>.kt-accordion-id3055_342a60-54 .kt-accordion-inner-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:14px;}.kt-accordion-id3055_342a60-54 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;background:#ffffff;padding-top:var(--global-kb-spacing-md, 2rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:0px;padding-left:var(--global-kb-spacing-sm, 1.5rem);}.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:0px solid #949494;border-right:0px solid #949494;border-bottom:1px solid #abb8c3;border-left:0px solid #949494;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;background:#ffffff;font-size:var(--global-kb-font-size-md, 1.25rem);line-height:1.5em;letter-spacing:-0.1px;font-weight:400;text-transform:capitalize;color:#12263a;padding-top:14px;padding-right:10px;padding-bottom:16px;padding-left:16px;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap .kt-blocks-accordion-icon-trigger:before{background:#12263a;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger{background:#12263a;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger:before{background:#ffffff;}.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54 .kt-blocks-accordion-header:focus-visible{color:#12263a;background:#ffffff;border-top-color:#474747;border-top-style:solid;border-right-color:#474747;border-right-style:solid;border-bottom-color:#474747;border-bottom-style:solid;border-left-color:#474747;border-left-style:solid;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:before, body:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-blocks-accordion--visible .kt-blocks-accordion-icon-trigger:after, body:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:before{background:#ff6900;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger, body:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger{background:#ff6900;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:before, body:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:after, body:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:before{background:#ffffff;}.kt-accordion-id3055_342a60-54 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{color:#12263a;background:#ffffff;border-top-color:#abb8c3;border-top-style:solid;border-right-color:#abb8c3;border-right-style:solid;border-bottom-color:#abb8c3;border-bottom-style:solid;border-left-color:#abb8c3;border-left-style:solid;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:before{background:#ff6900;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger{background:#ff6900;}.kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id3055_342a60-54:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:before{background:#ffffff;}@media all and (max-width: 1024px){.kt-accordion-id3055_342a60-54 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;}}@media all and (max-width: 1024px){.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:0px solid #949494;border-right:0px solid #949494;border-bottom:1px solid #abb8c3;border-left:0px solid #949494;}}@media all and (max-width: 1024px){.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54 .kt-blocks-accordion-header:focus-visible{border-top-color:#474747;border-top-style:solid;border-right-color:#474747;border-right-style:solid;border-bottom-color:#474747;border-bottom-style:solid;border-left-color:#474747;border-left-style:solid;}}@media all and (max-width: 1024px){.kt-accordion-id3055_342a60-54 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{border-top-color:#abb8c3;border-top-style:solid;border-right-color:#abb8c3;border-right-style:solid;border-bottom-color:#abb8c3;border-bottom-style:solid;border-left-color:#abb8c3;border-left-style:solid;}}@media all and (max-width: 767px){.kt-accordion-id3055_342a60-54 .kt-accordion-inner-wrap{display:block;}.kt-accordion-id3055_342a60-54 .kt-accordion-inner-wrap .kt-accordion-pane:not(:first-child){margin-top:14px;}.kt-accordion-id3055_342a60-54 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;}.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:0px solid #949494;border-right:0px solid #949494;border-bottom:1px solid #abb8c3;border-left:0px solid #949494;}.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id3055_342a60-54 .kt-blocks-accordion-header:focus-visible{border-top-color:#474747;border-top-style:solid;border-right-color:#474747;border-right-style:solid;border-bottom-color:#474747;border-bottom-style:solid;border-left-color:#474747;border-left-style:solid;}.kt-accordion-id3055_342a60-54 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id3055_342a60-54 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{border-top-color:#abb8c3;border-top-style:solid;border-right-color:#abb8c3;border-right-style:solid;border-bottom-color:#abb8c3;border-bottom-style:solid;border-left-color:#abb8c3;border-left-style:solid;}}<\/style>\n<div class=\"wp-block-kadence-accordion alignnone\"><div class=\"kt-accordion-wrap kt-accordion-id3055_342a60-54 kt-accordion-has-19-panes kt-active-pane-0 kt-accordion-block kt-pane-header-alignment-left kt-accodion-icon-style-none kt-accodion-icon-side-right\" style=\"max-width:none\"><div class=\"kt-accordion-inner-wrap\" data-allow-multiple-open=\"false\" data-start-open=\"0\">\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-1 kt-pane3055_968a4c-28\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">How do I specify the fineness of a powder grinder?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">With numbers rather than words. State a top size, and ideally a median size (d50) and an upper size (d90), in microns or mesh. A specification such as 95 percent through 200 mesh, which is roughly 75 microns, tells a supplier exactly what the machine has to achieve.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-2 kt-pane3055_bd3e85-38\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Which type of grinder is best for fine powders?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">For many food, chemical and pharmaceutical powders, pin mills, air classifying mills and high speed fine grinders are the usual choices. Jet mills suit ultra-fine or heat-sensitive products, cutting mills suit fibrous materials, and roller mills suit controlled reduction with fewer fines, such as flour milling.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-3 kt-pane3055_5d251b-ad\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What is closed circuit grinding?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Pairing the mill with a sifter or classifier so that material already at the target size is removed as product and only oversize goes back for regrinding. It uses less energy, keeps the mill cooler and gives a tighter particle size distribution than passing everything through the mill once.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-11 kt-pane3055_bba4d0-79\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Why does grinder throughput depend on fineness?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Because grinding finer takes much more energy per kilogram, and the relationship is steep. The same mill produces far more coarse powder than fine powder in an hour, so capacity figures only mean something when they are stated at a specific target particle size on a specific material.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-18 kt-pane3055_a1fac8-97\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Do powder grinders need explosion protection?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">For combustible materials such as sugar, flour, starch and many chemicals, yes. Grinding creates exactly the fine airborne dust that can ignite, and tramp metal hitting high-speed parts can spark. Inlet magnets, dust containment and explosion-resistant construction should be designed in from the start.<\/p>\n<\/div><\/div><\/div>\n<\/div><\/div><\/div>\n\n\n\n<p class=\"has-white-color has-text-color has-link-color wp-elements-c645e628e62f8fbab9d9726851472d16 wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ask for a grinder that makes &#8220;fine powder&#8221; and you will get very different machines from different suppliers, because fine means nothing without a number&#8230;.<\/p>\n","protected":false},"author":4,"featured_media":3062,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[30],"class_list":["post-3055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-process","tag-process"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast 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