... . Currently, the plant has formed hydraulic coupling and hydraulic transmission unit series products of 280, 420, 560, 650, 670 ... 160, 180, 190, 200, 260, 320 and other series, kinds of motors, and foreign advanced power machinery such as Caterpillar, Cummins ... , engineering machinery, etc. and can adapt the need of different regions and various customers. 2000 series hydraulic coupling gear reducer