A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.Crushing devices hold material between two parallel or tangent solid surfaces, and applyOther metallurgical developments such as silver and gold mining mirrored the .. The short head type is applied to coarse fine crushing.

Rock Crushers for Commercial Gold Mining…

Crushers release gold and other metals from ores to allow for furtherstage is to crush the rocks to smaller fine gravels that will allow for gold