Crusher - WikipediaA crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste . The earliest crushers were hand-held stones, where the weight of the stone provided a boost to muscle power, used against a stone anvil. Querns and.jaw crusher forms,Patent US20130099038 - Jaw crusher - Google PatentsApr 25, 2013 . A jaw crusher is described, comprising a crushing chamber (2) . that the cross-member (9) which forms the counter-bearing (10) for the rocker.
jaw crusher forms