... metallurgy industries, with great crushing ratio, high crushing efficiency; Grain size of ore, rock not greater than 600 mm, and compressive ... more than 320 MPa; max feed size not greater than 400mm, and the maximum discharge size not more than 35mm; the ... than 250mm, and the maximum discharge size not more than 3mm; the production capability 300t/h. Granite,limestone, coal, concrete and stone ...