Classifying & Separating
Classification are based on the effects of centrifugal force, gravity, inertial force, etc., of different sizes powders in the medium (usually air) to form different trajectories, so as to realize the separation of different sizes powders.
Material would go from the bottom part of air classifier up to the classifying chamber by the air flow from suction fan. The classifier wheel with high-speed rotation would create a strong centrifugal force to separate coarse and fine powder. Qualified fine powder would go through the wheel vane then into the cyclone or bag filter, while coarse entraining fine powder would lose its speed and fall down along the wall of chamber to the inlet of secondary air. The secondary air flow would disperse it further and separate coarse and fine powder. Fine powder would go up to the classifying chamber for further classifying, while coarse powder would fall down and will be discharged from the bottom outlet.
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4 types of ultrafine powder classifiers
Air classifier is ideal for fine powders of ceramics, abrasives, glass, minerals, and polymers.Superfine powders in the range of d97 = 8 µm to d97 = 45 µm.
CTC series air classifier is designed under the guidance of our German experts, and it is specially developed for separating powder products between 32-250μm.
MBS series air classifier is jointly designed by our German experts and British experts, and is specially used for efficient dry classification of D97: 8-200 micron powder.
High fines yield and maximum fines capacity, with a single classifier wheel. Superfine powders in the range of d97 = 3 µm to d97 = 45 µm.
Advantages of EPIC Powder Classifying
High classifying efficiency
Classifying efficiency (extraction ratio) can be 90%.
Can form a closed loop
Can be connected in series with a variety of milling equipment to form a circulating system.
Flexible adjustment of particle size
Speed of wheel is controlled by inverter; particle size can be adjusted freely.
Fully enclosed negative pressure operation
No dust spills, no environmental pollution, low noise, easy operation.
Ceramic materials is available
No metal pollution, high-purity product.
Explosion-proof design and nitrogen circulation
Can meet the processing requirements of flammable, explosive and oxidizing materials.
We Has Helped Them Solve the Problem
High-performance Silica Surface Modification Project
Project Background The project was conducted for a leading domestic Chemical New Material Research Institute, focusing on the high-end application of Silica Surface Modification. The primary goal was to improve the dispersibility of silica in rubber/plastic matrices and achieve high-capacity continuous production. Industry Challenges As a reinforcing filler, silica is rich in silanol groups (-OH)
US Client Utilizes MQW03 Lab Jet Mill for Ultrafine Grinding of Dental Glass Ceramics
In the field of dental restoration, the quality of dental ceramic powders (such as lithium-based glass ceramics and zirconia) directly determines the strength, translucency, and biocompatibility of the final prosthesis. Recently, Epic Powder provided a professional laboratory-scale solution for a US-based client, successfully addressing the challenges of precision and purity in the ultrafine grinding of
Jet Mill Achieves D50 2.5μm Ultrafine Talc for Coating Industry
A Taiwanese talc processor needed to upgrade their talc jet milling capability. Coating manufacturers were demanding finer talc—specifically in the 2–3 μm range—to improve gloss, barrier properties, and sedimentation resistance in high-performance paints and primers. The existing equipment could not produce a consistent particle size distribution. The company turned to Epic Powder for a solution. The goal was clear:
Greek Calcium Carbonate Producer Increases Output with Epic Powder’s Air Classifier Mill
A well-established mineral processing company in Greece was facing growing pressure from its industrial buyers. The paints and sealants manufacturers they supplied needed a finer and more reliable calcium carbonate powder. Unfortunately, their existing air classifier mill grinding line could not produce a consistent particle size, which led to frequent customer complaints and wasted batches.
MBS-3 Air Classifier Delivers Stable D97 75μm Quartz Sand at 6 t/h
A major quartz sand processor in Southeast Asia, supplying high-quality material to the glass manufacturing industry, was struggling with their outdated classification system. Their existing classifier delivered inconsistent results, with D97 values fluctuating wildly between 85μm and 120μm. This variability led to frequent product rejections from demanding glass industry customers. In addition, the highly abrasive
Graphite Anode Powder Grinding Pin Mill Project in Korean
A leading battery material supplier in South Korea was seeking a reliable grinding solution. The client needs to produce ultrafine graphite powder for high-performance lithium-ion battery anodes. EPIC Powder’s Customized Pin Mill Solution EPIC Powder provided a customized pin mill system designed specifically for heat-sensitive and abrasive materials like graphite. The system operates with adjustable