use of iron ore in ball mill production. ball mill an overview sciencedirect topics. ball mills give a controlled final grind and produce flotation feed of a uniform size ball mills tumble iron or steel balls with the ore the balls are initially 510 cm diameter but gradually wear away as grinding of the ore proceeds the feed to ball mills (dry basis) is typically 75 vol ore and 25 steel,ball mills mineral processing metallurgy,feb 13, 2017 ball mills or rod mills in a complete range of sizes up to 10 diameter x 20 long, offer features of operation and convertibility to meet your exact needs. they may be used for pulverizing and either wet or dry grinding systems. mills are available in both light-duty and heavy-duty construction to meet your specific requirements.