Jaw crushers are used in industry for crushing and processing primary rocks, as well as strong and brittle materials, on slags in metallurgy, in production stone and crushed stone for construction work. Jaw crushers are available in all crushing classes:
In a crusher, the material is crushed by crushing, sometimes by abrasion between two rectangular slabs called cheeks. In the crusher, the jaws are located so that they form wedge-shaped crushing chamber. One of the jaws of the crusher is made stationary, the other jaw is mounted on a connecting rod that moves the upper edge of the cheek so that the cheek makes swinging motion.
When the mechanism is activated and large pieces of material, the movable cheek moves in the direction of the fixed cheek, which leads to crushing of the material loaded between them, and when the movable cheek leaves the crushed material falls out of the discharge slot.
The advantage of this type crushers in that it is possible to regulate the size of the fraction of the final material.