The ball grinding mill machine usually coordinates with other rock crusher machines, like jaw crushers, cone crushers, to reduce the ore particle into fine and superfine size. Ball mills grinding tasks can be done under dry or wet conditions. Get to know more details of rock crushers, ore grinders, contact us Cabbing machines, trim saws, slab saws and more. Lapidary equipment for beginners and Pros. Shop equipment for polishing from Covington Engineering and Lortone.