{"id":14724,"date":"2025-11-26T06:34:10","date_gmt":"2025-11-26T06:34:10","guid":{"rendered":"https:\/\/www.air-classifier-mill.com\/?post_type=astra-portfolio&#038;p=14724"},"modified":"2025-11-26T06:39:30","modified_gmt":"2025-11-26T06:39:30","slug":"bentonite-ultrafine-grinding-project-in-greece","status":"publish","type":"astra-portfolio","link":"https:\/\/www.air-classifier-mill.com\/ru\/portfolio\/bentonite-ultrafine-grinding-project-in-greece\/","title":{"rendered":"\u041f\u0440\u043e\u0435\u043a\u0442 \u0441\u0432\u0435\u0440\u0445\u0442\u043e\u043d\u043a\u043e\u0433\u043e \u0438\u0437\u043c\u0435\u043b\u044c\u0447\u0435\u043d\u0438\u044f \u0431\u0435\u043d\u0442\u043e\u043d\u0438\u0442\u0430 \u0432 \u0413\u0440\u0435\u0446\u0438\u0438"},"content":{"rendered":"<p>The client is a well-known bentonite deep-processing enterprise located in Northern Greece, specializing in high-performance sodium-based <a href=\"https:\/\/www.air-classifier-mill.com\/ru\/\">bentonite powder<\/a> for GCL (Geosynthetic Clay Liner) waterproofing materials. In the second half of 2024, the EU tightened its standards for landfill anti-seepage layers (permeability coefficient \u2264 1\u00d710\u207b\u2079 cm\/s). The client\u2019s existing Raymond mill + mechanical classifier system could only produce D97 15\u201320 \u03bcm powder\u2014no longer sufficient to meet the updated EN standard and the requirements of key customers. To remain competitive, the company needed a breakthrough in bentonite ultrafine grinding, aiming to upgrade product fineness to D97 \u2264 5 \u03bcm (over 2500 mesh) in a single pass, while ensuring batch stability and maintaining high yield.<\/p><figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"453\" src=\"https:\/\/www.air-classifier-mill.com\/wp-content\/uploads\/2025\/11\/Bentonite-Ultrafine-Grinding-Equipment.webp\" alt=\"\u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u0434\u043b\u044f \u0441\u0432\u0435\u0440\u0445\u0442\u043e\u043d\u043a\u043e\u0433\u043e \u0438\u0437\u043c\u0435\u043b\u044c\u0447\u0435\u043d\u0438\u044f \u0431\u0435\u043d\u0442\u043e\u043d\u0438\u0442\u0430\" class=\"wp-image-14725\" srcset=\"https:\/\/www.air-classifier-mill.com\/wp-content\/uploads\/2025\/11\/Bentonite-Ultrafine-Grinding-Equipment.webp 800w, https:\/\/www.air-classifier-mill.com\/wp-content\/uploads\/2025\/11\/Bentonite-Ultrafine-Grinding-Equipment-300x170.webp 300w, https:\/\/www.air-classifier-mill.com\/wp-content\/uploads\/2025\/11\/Bentonite-Ultrafine-Grinding-Equipment-768x435.webp 768w, https:\/\/www.air-classifier-mill.com\/wp-content\/uploads\/2025\/11\/Bentonite-Ultrafine-Grinding-Equipment-18x10.webp 18w, https:\/\/www.air-classifier-mill.com\/wp-content\/uploads\/2025\/11\/Bentonite-Ultrafine-Grinding-Equipment-600x340.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><h2 class=\"wp-block-heading\">Project Requirements<\/h2><ul class=\"wp-block-list\"><li><strong>Feed material:<\/strong> Bentonite at 325 mesh (&lt;45 \u03bcm), moisture &lt; 8%<\/li>\n\n<li><strong>Target fineness:<\/strong> D97 \u2264 5 \u03bcm, D50 1.8\u20132.2 \u03bcm<\/li>\n\n<li><strong>\u0415\u043c\u043a\u043e\u0441\u0442\u044c:<\/strong> \u2265 400 kg\/h per line<\/li>\n\n<li><strong>Additional requirements:<\/strong><\/li><\/ul><ol class=\"wp-block-list\"><li>Ultra-narrow particle size distribution (Span &lt; 1.4)<\/li>\n\n<li>Low-temperature grinding to protect the montmorillonite layered structure<\/li>\n\n<li>Zero iron contamination (Fe\u2082O\u2083 increase &lt; 30 ppm)<\/li>\n\n<li>Energy consumption \u2264 110 kWh\/t<\/li><\/ol><h2 class=\"wp-block-heading\">Equipment Selection: <a href=\"https:\/\/www.air-classifier-mill.com\/ru\/\u0441\u0432\u044f\u0437\u0430\u0442\u044c\u0441\u044f-\u0441-\u043d\u0430\u043c\u0438\/\">\u042d\u043f\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043f\u043e\u0440\u043e\u0448\u043e\u043a<\/a> <a href=\"https:\/\/www.air-classifier-mill.com\/ru\/product\/mjw-a-air-classifier-mill-2\/\">MJW-L800 Air Classifier Mill <\/a>System for Bentonite Ultrafine Grinding<\/h2><p>After on-site trial grinding and comparison tests, the customer selected the Epic Powder MJW-L800 air classifier mill complete system.<br><strong>Configuration includes:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>Main motor power:<\/strong> 55 kW<\/li>\n\n<li><strong>Classifier:<\/strong> High-speed, frequency-controlled turbo classifier (max 2500 rpm)<\/li>\n\n<li><strong>Auxiliary equipment:<\/strong> Pulse-jet dust collector, nitrogen closed-loop system (optional), automatic packing line<\/li>\n\n<li><strong>Material construction:<\/strong> Core parts made of high-strength wear-resistant ceramics + 316L stainless steel composite structure<\/li><\/ul><h2 class=\"wp-block-heading\">Trial &amp; Production Data (Commercial Production Started March 2025)<\/h2><figure class=\"wp-block-table\"><table><thead><tr><th>Item<\/th><th>Feed Material<\/th><th>Measured Product Data<\/th><\/tr><\/thead><tbody><tr><td><strong>Fineness<\/strong><\/td><td>325-mesh pass<\/td><td>D97 = 4.68 \u03bcm, D50 = 2.01 \u03bcm<\/td><\/tr><tr><td><strong>Particle Distribution (Span)<\/strong><\/td><td>\u2014<\/td><td>1.32<\/td><\/tr><tr><td><strong>+5 \u03bcm content<\/strong><\/td><td>\u2014<\/td><td>&lt; 2.1%<\/td><\/tr><tr><td><strong>Actual capacity<\/strong><\/td><td>\u2014<\/td><td>430\u2013480 kg\/h<\/td><\/tr><tr><td><strong>Specific energy consumption<\/strong><\/td><td>\u2014<\/td><td>102\u2013108 kWh\/t<\/td><\/tr><tr><td><strong>Iron increase (Fe\u2082O\u2083)<\/strong><\/td><td>\u2014<\/td><td>+18 ppm<\/td><\/tr><tr><td><strong>Swelling index retention<\/strong><\/td><td>\u2014<\/td><td>99.1% (almost no structural loss)<\/td><\/tr><tr><td><strong>System yield<\/strong><\/td><td>\u2014<\/td><td>&gt; 98.5%<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Project Significance<\/h2><p>This project represents the first successful large-scale production of bentonite at D97 \u2264 5 \u03bcm in the European market using the Epic Powder MJW series air classifier mill. It has become a benchmark case and provides a replicable technical model for upcoming production lines in Greece, Italy, Spain, and other regions.<\/p><p>The customer has already ordered a second MJW-L800 production line and plans to expand total production capacity to <strong>15,000 tons\/year<\/strong> of ultrafine sodium bentonite by 2026, entirely for export to the EU high-end waterproofing materials market.<\/p><div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f14015-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"14015\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ru\/wp-json\/wp\/v2\/astra-portfolio\/14724#wpcf7-f14015-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" 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