... material, fireproofing material, concrete, steel shot, copper ore, iron ore, gold ore, concrete aggregate, asphalt aggregate, etc. ... 50%) than traditional sand making machines. Technical Specifications of rod mill ModelMB0918MB0924MB1224MB1530MB1830MB2130MB2136MB2736MB2740Cylinder diameter (mm)9009001200150018002100210027002700Cylinder length (mm)180024002400300030003000360036004000Cylinder speed ...