CMG gear motors include CMG2 and CMG3 series, with the output volume coverage of 25-200ml/r, the working rotary speed of 600-2000r/min, and the working pressure of 16Mpa. The motor adopts ductile iron shell with high strength and rolling needle bearing, axial fixed clearance and secondary sealing structure with strong bearing capacity. It has the characteristics of reliable operation, small loss of mechanical efficiency, small starting torque, wider range of speed adaptability and excellent performance. CMG gear motors can rotate unidirectionally or bi-directionally, which are widely used in construction machinery, mining machinery, fishing machinery, rig hoisting machinery and so on.