Hydraulic motors can be divided into high-speed hydraulic motors and low-speed hydraulic motors according to the classification of speeds. High-speed hydraulic motors include A2F series hydraulic motors, gear hydraulic motors and vane hydraulic motors. High-speed hydraulic motors generally apply to relatively high speeds, generally running at 800-3000r/min, some even higher, high-speed motor displacement is relatively small, generally in hundreds of milliliters / revolution, so the output torque is relatively small.
Low-speed and high-torque hydraulic motors include crankshaft connecting rod radial piston hydraulic motor (outer five-star motor), crankshaft swing cylinder radial piston motor (inner five-star motor), inner curved ball plug hydraulic motor (steel ball motor), cycloid hydraulic motor, inner curved plunger hydraulic motor (Hegelund motor, Pocland motor) and so on. Low-speed hydraulic motors generally run below 700r/min, and the displacement of these hydraulic motors is relatively large, and the output torque is relatively large.
The low-speed high-torque hydraulic motor has good stability at low speed, and the large-displacement hydraulic motor can run at about 5r/min, so there is no need to bring a reducer to achieve low speed. However, each type of hydraulic motor has its own unique application, so it is best to communicate with the actual manufacturer when selecting, and the appropriate hydraulic motor selection is the guarantee that helps the hydraulic system to be completed.
