Rock Crusher History Mineral Processing Amp Metallurgy
Apr 16, 2015 Many small process plants consisted of one crusher, either jaw or gyratory rock crushers, one elevator and one screen. Recrushing, if done, was taken care of by the same machine handling the primary break. The single crusher, when of the gyratory type, might be any size from the No. 2 6 opening to the No. 6 with 12-in. opening.