As the pump is directly connected to the motor, the concentricity of the two is better, the operation is smoother, the vibration is small, the starting torque is high, the noise is low, and the oil pump is easy to install, maintain and replace, which improves the working efficiency. At present, it has been used in a large number of various hydraulic systems. The gear pump is equipped with a motor with a 100% copper core coil, which is stable in operation and generates little heat, suitable for long working hours and safer in use.The oil pump gears are all made of high hardness steel gears, quenched and treated to resist wear and tear.