... terrazzo floor grinder Motor: 10hp, 360-400V, 3P; Inverter: 15hp, speed 300-2000rpm; Disc Diameter: 250mm*3 Vacuum port terrazzo floor grinderPerformance1 ... polishing;3, Two motors to choose: 380-400V, Three P; 220-240V, One P;4, Water tank ... Iron, 30Kg, HWS550 can hold 3 pieces; The disc plate of HWG550 Foot board, turn down the machine ... of start, stop, adjust the inverter; .... terrazzo floor grinder