The main source of potential energy of hydraulic motor is different from that of hydraulic motor.
The electric motor is an electric motor driven by electricity; the hydraulic motor is driven by pressure oil. How can the electric motor drive the hydraulic motor?
The advantages of hydraulic motor over motor are as follows:
1. Power density: 45KW motor weight 400-500kg, 45KW hydraulic motor weight may be only 45kg. In some cases, such as the winch of crane, only hydraulic motor can be used;
2. Good control performance: hydraulic control can make the hydraulic motor realize stepless speed change, fast response; this is much better than the motor.