Coal crusher is also called coal mill. Coal crusher is an impact rotor crusher with a crushing ring. The crushing ring of the coal mill is suspended on a suspension shaft that rotates with the rotor. The crushing ring rotates and impacts with the rotor. And there is also spin motion around the suspension axis; the Coal crusher crushing process is completed by two stages of work in the crushing ring. When the material enters the crushing chamber of the Coal crusher, the crushing ring rotating in the section is impacted and crushed. In the second stage, the primary crushed particles falling on the sieve plate are further crushed by the crushing ring, and are discharged through the sieve holes at the same time. A small amount of material that cannot be crushed enters the waste chamber and is then periodically removed from the waste chamber. The adjustment of the discharge particle size is realized by replacing the sieve plates of different specifications. The gap between the rotor and the sieve plate can be adjusted by the adjustment mechanism according to the needs.

Coal crusher is not only suitable for crushing coal, but also suitable for crushing minerals of various brittle materials such as salt, white, gypsum, alum, brick, tile, limestone, etc. Coal crusher is widely used in highway, railway, building materials, refractory, cement, ceramics, chemical and other industries for medium and fine crushing of materials. The compressive strength of the material of this machine is not more than 100 MPa, and the humidity is not more than 15%.