The material enters the classifier through a feed inlet at its lower end and is then propelled upwards by suction from a fan. As it passes through the classifier, it is subjected to strong centrifugal forces generated by a rapidly rotating turbine. Qualified fine powders pass through blade on the classifier into a cyclone separators or dust collector for collection. Some fine powders carried by course particles collide with walls and fall back down towards secondary air inlets along the cylinder wall. Coarse particles are separated from finer ones due to strong elutriation from secondary air flow; fine particles rise up for further grinding while coarse ones fall out at discharge ports.

Classifying & Separating
Advantages
  • High collection rate High collection rate Fractionation efficiency (extraction rate) up to 90%
  • Flexible adjustment of particle size distributionFlexible adjustment of particle size distribution Adjusting particle size distribution with a variety of classifier rotors and variable frequency speed regulation available
  • Ceramic key components optionalCeramic key components optional Producing pure powder with no metal pollution
  • Closed loop systemClosed loop system Form a closed loop system in series with various grinding equipment
  • Fully-sealed negative pressure operationFully-sealed negative pressure operation No dust overflow or environmental pollution, low noise and easy operation
  • Explosion-proof design and nitrogen circulationExplosion-proof design and nitrogen circulation Suitable for inflammable, explosive or oxidizable materials
    1. Air Classifier
    2. Air Classifier

      The material enters the classifier through a feed inlet at its lower end and is then propelled upwards by suction from a fan. As it passes through the classifier, it is subjected to strong centrifugal forces generated by a rapidly rotating turbine. Qualified fine powders pass through blade on the classifier into a cyclone separators or dust collector for collection. Some fine powders carried by course particles collide with walls and fall back down towards secondary air inlets along the cylinder wall. Coarse particles are separated from finer ones due to strong elutriation from secondary air flow; fine particles rise up for further grinding while coarse ones fall out at discharge ports.

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ALPA is a highly respected name in particle and powder processing, transforming the way the industry views traditional powder processing. Our research and development initiatives have focused on dry grinding, classification and separation, powder shape control and surface modification of particles and powders over the past two decades. As a result, we are proficient in providing tailored, CE-certified products, such as air jet mills, mechanical mills, air classifiers, ball mill with classifier, surface modification lines and more.
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Service & Support
    1. Inspection & Delivery
    2. Inspection & Delivery Production processes are closely monitored in order to ensure that the products are adequately packaged and crated for both sea and land travel.
    1. Installation, Commissioning & Training
    2. Installation, Commissioning & Training Successful and dependable operation of any piece of equipment starts with proper installation, commissioning, and initiation.
    1. Process Upgrading & Optimization
    2. Process Upgrading & Optimization Process optimization is usually recommended after the system has been operating for a few years. New research discoveries, if utilized, can help to upgrade the process and bring positive changes to production.
    1. Quality Assurance
    2. Quality Assurance ALPA has integrated ERP project management for synchronous engineering and streamlined production. We also improved management of supply chain maintenance, financial resource allocation, and human resources.