Crusher - Wikipedia

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. .... Primary crushing reduces the large pieces to a size which can be handled by the downstream machinery. Some crushers are mobile and can...

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Rock Crushers for Commercial Gold Mining Operations ...

Jan 23, 2017 ... The primary crusher handles course rocks while the secondary, tertiary and sometimes the quaternary works on finer gradations that can allow...

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