Crusher - WikipediaA crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. . The earliest crushers were hand-held stones, where the weight of the stone provided a .. size enough so that the material can be processed into finer particles in a grinder. . A portable rock crusher from the early 20th century.movable stone crusher and grinder,China Zenith Small Mobile Stone Crusher Plant with Large Capacity .China Zenith Small Mobile Stone Crusher Plant with Large Capacity, Find details . Grinder Mill, Portable Crushing Plant, Mobile Crushers, Magnetic Separator.
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