Model:400X2/500X2 Limit degree of vacuum:<1.3332KPa/<1.3332KPa The size of vacuum room:440x440x130mm/500x500x130mm Working capacity:≥0-25s/time/≥0-25s/time Sealing band:2x400mm/2x500mm Voltage:220V/380V?0% 50HZ/220V/380V?0% 50HZ Heating power: 0.8-1.1KW/1-1.5KW Motor power: 0.75KW-2.2KW/0.75KW-2.2KW(double pumps) Pumping spead: 5.5L/s/5.5L/s Weight:110KG/125KG