Rock Crushers - 911 MetallurgistMar 18, 2017 . The disadvantage of the known jaw rock crushers in comparison with known gyratory crushers lies in their cyclical work. i.e. the jaw makes one.sencillo de rock crusher,Rock Crushers - 911 MetallurgistThe crusher is used not only to . to set up a rock-crusher at the Benton Mills, on the.