The working principle of mini jaw crusher By using motor as its power, the eccentric shaft is driven by the belt and belt wheel to make the movable jaw move up and down. When the movable jar ascends, the angle between the toggle plate and it becomes larger, push it toward the fixed jaw plate, reaching the purpose of crushing the materials. When the movable jaw descends, the angle becomes smaller, in the action of draw bar and spring, depart from the fixed jaw plate and discharge the materials, when the pressure rises to the strength beyond which the materials can bear, the crushing happens. Otherwise, when the fixed jaw swings in the opposite direction departing from the fixed jaw, the materials move downward by the self weight. Every periodical movement of the movable jaw will make the crushing effect on the materials, and send them a distance downward. The crushed materials will be discharged through the discharging opening after several periods. -