... air channel; 3.ISO9001:2000,CE; Trapezium Mill,Mill Machine,MillMill Machine - MTW Medium Speed Trapezium MillMTW European Trapezium Grinding Mill ... Our MTW Trapezium Mill is mainly applied to the powder processing of mineral products in industries of metallurgy, construction, chemistry, ... roller (mm)110013801750Speed(r/min)1209675Max. feed size(mm)< 30< 35< 40Final size(mm)1.6~0.045Fineness can reach ...