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Hydraulic Motor

Hydraulic motor is an energy conversion device. It converts the pressure energy of liquid into mechanical energy of rotational motion. It’s the executive element. Hydraulic motors are also divided into one-way and two-way, fixed and variable. Due to structural differences, different hydraulic motors have different basic characteristics. Of course, their application scope is also different.

Principle of the hydraulic motor

A hydraulic motor is like a machine that uses the power of flowing liquid (usually oil) to turn something, like a wheel. It works based on the principle that when you push oil into it, it makes the motor spin and do useful work, like moving a machine or vehicle. So, you can think of it as using the force of liquid to create motion.

Hydraulic motors and hydraulic pumps have the same working principle. They both achieve energy conversion through volume changes in the sealed working chamber.

In principle, all forms of hydraulic pumps and hydraulic motors are the same. But, valve-type hydraulic pumps (one-way) are not universal.

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Hydraulic Motor

Similarities and differences between hydraulic motors and hydraulic pumps

①Similar points:

The working principles of hydraulic motors and hydraulic pumps are the same. They all achieve energy conversion through volume changes in the sealed working chamber.

1.Both Use Hydraulic Fluid: Hydraulic motors and pumps both rely on hydraulic (usually oil) fluid to work. They require a liquid to transmit power and perform mechanical tasks.

2. Use of Valves: Both motors and pumps can utilize valves to control the flow and pressure of the hydraulic fluid. Valves help regulate the direction and speed of the fluid.



Hydraulic Motor

Hydraulic motors tend to be more smaller. Hydraulic motors primarily produce rotational motion, such as powering wheels or conveyor belts. Hydraulic pumps are generally larger. Their main function is to push hydraulic oil under high pressure to power various hydraulic systems, such as using cylinders to lift heavy objects.


Hydraulic Motor

Hydraulic motors typically operate at slower speeds. Its main function is to convert hydraulic oil into rotating mechanical power to turn objects such as wheels or gears. Hydraulic pumps typically operate at higher speeds. And they produce hydraulic pressure for other components such as cylinders and actuators. 


Hydraulic Motor

The hydraulic motor has a symmetrical structure and can rotate forward and reverse. However, most hydraulic pumps are one-way only. In addition to the oil inlet and outlet, the hydraulic motor also has an oil drain port, while the hydraulic pump does not.

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