Grinding Balls. Steel balls ranging from ¾ to 5 in. in diameter are used. 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.
High quality Durable Cast Iron Forged Steel Grinding Media Balls In Mining Plant from China, China39;s leading Grinding Balls For Ball Mill product, with strict quality control ball milling media factories, producing high quality ball milling media products.
forged steel grinding ball has high hardness: surface hardness to 58 65HRC, volume hardness of 57 64HRC. impact toughness high: impact toughness more than 12J / cm2. broken rate is low: the actual broken rate is not higher than 0.5%. loss of forged grinding ball round rate is low. dropping test in 8m high tester for more than 20,000 times.