Mill (grinding) - WikipediaA mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting .. Rod mills are less common than ball mills for grinding minerals. The rods . SAG mills are primarily used at gold, copper and platinum mines with.copper ore rod mill,Ball Mills vs Rod Mills - AM King Industries, IncBall mills and rod mills are both excellent mining machines for grinding ores into . coal, copper or other mining media than a rod mill may be a better fit than a.
copper ore rod mill