... but also for repairing, grinding, polishing, crystallizing millstones.ground grinding machine HWG 70 has the quickest motor speed, ... rpm to 2000 rpm. The motor is 15 hp, andworking area is 700 mm, so it is ... greatly consume time and labor.Performance:1,With 15 hp motor, it is good for grinding the large ... Tank 30L Noise 65DB Packing 1000*900*700mm The rotation way of ground grinding machine HWG 70: The ...