4.5inch forged steel ball for mining ball mill grinding
Rods range from 1½ to 4 in. in diameter and should be 3 to 4 in. shorter than the inside mill length. Tube mills are usually fed balls smaller than 2 in., whereas 4- or 5-in. balls are more commonly used for ball-mill grinding. 120mm Forged Steel Grinding Media Ball for Mining Ball Mill. 120mm Forged Steel Grinding Media Ball for Mining Ball Mill.