USED: Allen Sherman Hoff double row... USED: Allen Sherman Hoff double row bottom ash clinker grinder. Carbon steel. (2) 10" diameter x 34" long shafts. Approx 30" x 34" feed opening, approx 25-40 rpm speed. Capacity 75-125 stph. Requires an approx 15 to 25 hp motor. Built 1998. and the product is still available, |