Raymond Mill Mining, Crushing, Grinding, Beneficiation. Raymond mill is widely used in metallurgy, construction materials, chemicals, ores to produce powder, which is suitable for non-flammable and non-explosive ores with Mohs hardness below 9.3, humidity below 6%, such as Gypsum, talc, calcite, limestone, marble and feldspar, barite, dolomite, granite, kaolin, bentonite, stone, bauxite, iron ...