... for various drilling rigs. Independent fan cooling system installed separatelyThe independent chassis and fan cooling system adopted separately for this ... kWRated slip: 3%Rated efficiency: ≥96%Reduction ratio: 1.5~2.5 (depending on the equipments used by the ... 1000, 1150,etc; oil-extended adjusting centrifugal turbine torque converter series products with working chambers diameter of 480, 550, 650, ...