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,.names ofr rock crushing machines,Rock Crusher History - Mineral Processing / MetallurgyOct 23, 2016 . This device, although it was conceived as an impact crusher and . That was the first of several thousand gyratory crushers which carried the name of . x 60″ machine built by the now Joy Mining Machinery for a trap rock.
names ofr rock crushing machines