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Air Classifier Mill MJW-A

MJW-A air classifier mill is a double-shaft concentric structure of the driving shaft of the horizontal crushing disc and the driving shaft of the classifying wheel. The material is evenly fed into the grinding chamber by the feeding system, and is strongly impacted by the high-speed rotating crushing disc, and at the same time, it is subjected to centrifugal force and collides with the crushing ring gear. The comprehensive effect of various forces such as impact, shear, friction, and collision to make the material into powder. The ground material moves to the classification area with the airflow, and the coarse and fine materials are separated by the frequency conversion regulated classification wheel. The fine powder products that meet the fineness requirements are brought into the cyclone and dust collector by the airflow, and the coarse materials are returned to the grinding area for re-grinding.

Product features

  • Double-shaft structure, derived from the classic air classifier mill design.
  • Built-in guide ring, stable flow field, suitable for high-efficiency grinding of medium-fine products.
  • Different designs of crushing blades/hammers/rods and ring gears meet the crushing needs of materials with different characteristics.
  • It can meet the pure production of all ceramics, and there is no increase of magnetic substances in the production process.
  • Special design, easy to disassemble and assemble, can clean without dead ends, saving maintenance time.
  • Airflow closed-loop design, no moisture increase, can be used as nitrogen circulation system, real-time monitoring and control of gas oxygen content.

Working Principle

The material is uniformly sent into the grinding chamber by the feeding system, and is strongly impacted by the high-speed rotating grinding disc. At the same time, it is subjected to the centrifugal force to collide with the crushing ring gear, and is subjected to various comprehensive forces such as shearing, friction, and collision. The material is ground, and the crushed material moves to the classification area with the airflow. The coarse and fine materials are separated through the classification wheel adjusted by the frequency conversion. The products that meet the fineness requirements enter the cyclone collector and the dust collector with the airflow for collection, and the coarse particles return to the grinding area to continue shattered.

Product parameters

Model 300 400 500 700 900 1100
Motor Power(kw) 30 22 30 45 75-90 110-132
Rotating speed(rpm) 7000 4350 3850 2760 2350 1920
Motor Power(kw) 1.5 5.5 5.5 7.5 15 30
Rotating speed(rpm max) 4500 3200 3000 3000 2200 2000
Fineness (μm) 10-300 10-300 10-300 10-300 10-300 10-300
Capacity (kg/h) 5-100 20-1000 30-1500 40-2000 80-4000 120-6000

Note: The production capacity is closely related to the particle size, specific gravity, hardness, moisture and other indicators of the raw materials. The above is only for selection reference.

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