In the process of crushing materials, Air Classifying Mill will inevitably be accompanied by some noise, but this sound is the normal sound emitted by crushed materials, and when the crusher has some failures, it will be emitted during the process of crushing materials. Some abnormal noises, we need to solve them at this time.

The main causes of noise when crushing materials are:
①The friction sound between the turntable or hammer and the medicine;
② When the pulverizer is running at high speed, the moving parts drive the air to produce a "howl" sound;
③The friction sound generated by the rotating parts of the equipment;
④ Vibration sound generated when the equipment is running.

For the original group caused by noise, the main solutions are:
① Install a muffler at the tuyere of the crushing room;
②Add lubricating oil to each rotating part. If the bearing is misaligned with the shaft, adjust it; if the bearing is worn out, replace the bearing;
③ Carry out damping treatment on the equipment, such as using damping pads;
④The heat generated in the crushing process will also produce noise, and the cooling jacket of the crushing chamber can be used to cool down.
The noise of Air Classifying Mill is relatively simple to solve.