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Jaw crusher

This is a type of crusher that is widely used in the primary and secondary crushing processes. It is usually preferred for the crushing of large blocks of hard and abrasive materials.

 

There are two main groups of jaw crushers, categorized according to their jaw movement mechanism.

- Single-toggle jaw crushers: the movable jaw is supported by the bearing on an eccentric shaft driven by the pitman to which it is attached

- Double-toggle jaw crushers: the pitman is mounted on a fixed noneccentric shaft that is situated at the top of the crusher.