HGM 90 rock pulverizer is for super-fine grinding materials with hardness less than 6 in Moh's scale and humidity less than 6 percent such as kaolin, limestone, basalt, calcite, marble, talcum, barite, gypsum, dolomite, ... difference between pulveriser and grinder Pulverizer Machines,Pulverizer(Single Mill),Pulverizer(Twin Mill - difference ...