Jaw crusher

 Jaw crusher

A Jaw crusher is a machine designed to reduce large rocks into smaller size.

Jaw crushers are used to reduce the size of stones so they can be used in many industry, or to reduce the size of a rock ore.

A jaw crusher uses compressive force for breaking of stones. This mechanical pressure is achieved by the two jaws of the crusher. One jaw is kept stationary and is called a fixed jaw while the other jaw called a swing jaw, moves back and forth. The volume or cavity between the two jaws is called the crushing chamber. The movement of the swing jaw can be quite small, since complete crushing is not performed once.

Jaw crushers are heavy duty machines and hence need to be robustly made. The outer frame is generally made of cast iron or steel. The jaws are usually constructed from cast steel. They are fitted with replaceable liners which are made of manganese steel.