Introduction of Ball Mill Clirik ball mill is widely used for micron powder producing. It is suitable to grind the material with middle and low hardness, moisture below 6%, and the material should be nonexplosive and nonflammable, such as: calcite, chalk, limestone, dolomite, kaolin, mica, magnetite, vermiculite, meerschaum, gypsum, graphite, fluorite, phosphate ore,potassium ore .