... months within 3, saving electricity 4,1.5 ~ 100 PSS-G Series is suitable for the fluctuant torque load of conveyor ... is 12 months within3, saving electricity4,1.5 ~ 1000KW5,PSS-G Series is suitable for the fluctuant torque load of conveyor ... belt and ball mill. WIN-PSS-P/G Blower, Pump / General energy-saving system