... 400V, 3P; Inverter: 5hp, speed 300-1600rpm; Vacuum cleaner; Diamond tool. wet stone grinding machine, stone grinding equipment Performance1, Aluminum alloy gearbox ... , One P;4, Water tank and vacuum port provide wet and dry grinded and polished;5, Vacuum outlet and rubber ... HWG550 Foot board, turn down the machine, for equip the diamond tools; .... wet stone grinding machine, stone grinding equipment