Raymond mill is suitable for grinding the nonflammable and nonexplosive materials with humidity below 6 % and mohs hardness less than 7, such as barite, calcite, feldspar, limestone, marole, glass and so on.Model:3r2615 max.Charge granularity(mm):20 discharge granularity(mm):0.125-0.044 shift output(t):2-25 central shaft velocity(r/min):165 inner diameter of the ring(mm):780 diameter of the roller(mm):260 motor of main machine(kw):y225s-8-18.5