Ball Mill is a key equipment for grinding (or mixing) the crushed materials. Usually ball mill is used in production lines for powders such as cement, silicates, refractory material, fertilizer, glass ceramics, etc.Raymond mill is used in the field of metallurgy, building materials, chemical industry and mining to process powder. Raymond mill can grinding the non-flammable and non-explosive materials such as such as gypsum, talc, calcite, limestone, marble, feldspar, barite, dolomite, granite, kaolin, bauxite, iron ore etc.