A 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. Quartz or silica is commonly used because it is inexpensive to obtain.
May 9, 2000 ATTRITORS AND BALL MILLS ATTRITOR GRINDING MILLS AND NEW DEVELOPMENTS See chart, Comparison of Grinding Mills, carbide, silicon nitride, tungsten carbide, rubber, polyurethane, and various plastics.
Planetary Ball Mills are used wherever the highest degree of fineness is required. The PM 400 is a robust model with 4 grinding stations. steel, stainless steel, tungsten carbide, agate, sintered aluminium oxide, silicon nitride, zirconium oxide.