A 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, . Mortar and pestle · Pellet mill · Planetary mill · Stirred mill · Three roll mill · Vibratory mill · VSI mill · Wiley mill · Windmill.
A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing .. A planetary ball mill consists of at least one grinding jar which is arranged eccentrically on a so called sun wheel. The direction of movement of the.