Mill (grinding) - WikipediaA mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting .. Attrition between grinding balls and ore particles causes grinding of finer particles. SAG mills are characterized by their large diameter and short.ore crushing balls,FROM ROCK TO ORE - Britannia Mine MuseumWhen the ore had been blasted, it was crushed . crushing, grinding, flotation and dewatering stages. Mill No. .. the steel balls used in the ball mills wore down.
ore crushing balls