2019/06/12· Raymond Mill Grinding Process A Raymond mill is widely applied to finely grind more than 280 non-flammable and explosive materials, whose Moh's hardness is less than 93 and humidity is below 6%,such as barite, calcite, potassium feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, ,...