big ball mill for gold mining china used bar mill
big ball mill for gold mining china used bar mill. Stamp millWikipedia. A stamp mill consists of a set of heavy steel (ironshod wood in some cases) stamps loosely held vertically in a frame in which the stamps can slide up and down. They are lifted by cams on a horizontal rotating the cam moves from under the stamp the stamp falls onto the ore below crushing the rock and the lifting ...