Mill (grinding) - WikipediaA mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting .. SAG mills are primarily used at gold, copper and platinum mines with applications also in the lead, zinc, silver, alumina and nickel industries.mining grinding mill,SAG Mills - Mining Technology | TechnoMineNov 5, 2007 . SAG is an acronym for Semi-Autogenous Grinding, which means that it utilizes steel balls in addition to large rocks for grinding. The SAG mills.
mining grinding mill