Glossary

Jaw crusher

A jaw crusher breaks down material between a stationary 'fixed jaw' and a reciprocating 'swing jaw'. Oscillations can be small, as material is broken down with multipe impacts. A flywheel creates an eccentric motion with enough interia to crush the ore.

In Dodge-type crushers such as the one pictured below, the crushing chamber cavity is tapered, and gravity draws smaller particles lower down in the apparatus until they are small enough to pass through the bottom opening.

(animation courtesy Anatoly Verevkin)

 

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