In mineral processing lines, the first stone crusher that is placed is the jaw crusher. This stone crusher has the ability to crush stones with a high degree of hardness, and despite its very strong body, it does not need to be repaired easily. Inside the jaw crusher, there are two fixed and movable jaws, and the stones are turned into small pieces by being placed between these two jaws and by the pressure caused by their movement. The jaw crusher is produced in various capacities that production lines can buy one of them depending on the expected output. The capacity of each crusher shows that the machine is capable of crushing several tons of stone per hour. Usually, the material of the body and parts of this stone crusher are made of manganese steel to show high resistance against the blows and hardness of the stone. Jaw crusher in mining, construction, metallurgy and resistant industries