grind non-inflammable and non-explosive materials, barite, calcite, potash feldspar, talcum, marble, limestone, etc. Raymond Mill: Raymond mill produced by our company is mainly used to grind non-inflammable and non-explosive materials with Mohs hardness below 7 and moisture content below 6% such as barite, calcite, potash feldspar, talcum, marble, limestone, ceramic, glass, etc Raymond grinder ...