Jaw crusher is also called jaws. The working part consists of two jaws, one is a fixed jaw (fixed jaw) vertically (or its upper end slightly inclines outwards) fixed on the front wall of the machine body, and the other is an inclined moving jaw (moving jaw) which forms a crushing cavity (working cavity) with the fixed jaw. The movable jaw makes periodic reciprocating motion relative to the fixed jaw, sometimes separating and sometimes approaching. During separation, the material enters the crushing cavity and the finished product is discharged from the lower part; When approaching, the substance between the jaws is crushed by squeezing, bending and splitting.
In the stone production line, the stone is roughly crushed by a large jaw crusher and then further crushed by an impact crusher. They are usually used in gravel production lines.