Heavy-Duty Primary Jaw Crusher for Granite & Hard Rock Crushing

Working Principle

The working principle of jaw crusher: After the material enters into the crushing chamber (the space composed of fixed jaw plate and movable jaw plate), the electric motor drives the belt and belt pulley, and makes the movable jaw plate do cycle reciprocating motion through eccentric shaft.

When the movable jaw plate rises, the angle between the toggle plate and the movable jaw becomes larger, which pushes the movable jaw plate closer to the fixed jaw plate, and the material is crushed or split to achieve the purpose of crushing;

When the movable jaw plate goes down, the angle between the toggle plate and the movable jaw becomes smaller, and the movable jaw plate leaves the fixed jaw plate under the action of the tie rod and the spring, and the materials that have been crushed to a size smaller than the discharge opening are discharged from the lower mouth of the crushing chamber. The material which is located in the upper part of the crushing chamber and has not been crushed to a sufficiently small size then falls to the lower part of the crushing chamber and is crushed again by the action of the jaw plate.

With the continuous rotation of the motor, the crusher jaws move periodically, crushing and discharging the materials, thus achieving the purpose of continuous crushing.