Top 12 Hydraulic Motors

In a hydraulic system design, the ideal is to align overall efficiencies to the expected efficiency of the application. It necessitates the designer matching the motor, then the pump, to a particular device performance requirement. The entire equipment design will vary depending on the motor chosen, whether the necessity is to do anything within a certain time frame or to handle a certain amount of load. This guide will help you make informed choices when buying a hydraulic motor for your application.

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Hydraulic Motors Buying Guide

A pressurised hydraulic fluid is what powers hydraulic motors, which shifts rotational kinetic energy to mechanical machines. When driven by a mechanical source, hydraulic motors will rotate in the opposite direction and serves as a pump. When looking for hydraulic motors, the most critical criteria to consider are the operating requirements and features.

Types of hydraulic motors

There are many different types of hydraulic types available in the market. The axial piston motor produces mechanical energy by using an axially mounted piston. The piston is compelled to travel in the chamber by high-pressure flow through the engine, which generates output torque. Meanwhile, a radial piston hydraulic motor produces energy by mounting pistons radially around a central axis. An alternative form for radial piston generates energy by connecting many interconnected pistons, typically in a star pattern. Oil is pumped into the piston chambers, driving each piston and producing torque.

An internal gear motor generates mechanical energy with the help of internal gears. These gears are turned by pressurised fluid, generating output torque. In contrast, an external gear motor generates mechanical energy by using gears placed on the outside of the engine. It is turned by a pressurised fluid, which produces output torque. A vane motor uses a vane to produce mechanical energy. The blades of the vane are hit by pressurised fluid, which causes it to rotate and generate output torque.

Operating specifications to consider

The operating torque of a motor is the maximum torque it can produce. The pressure of the working liquid supplied to the motor determines the operating torque. The working fluid pressure delivered to the motor is known as the operating pressure. Until being delivered to the engine, the working fluid is pressurised by an external source. Working pressure affects the motor's speed, flow, operating torque and horsepower of the motor.

The operating speed of the motor refers to the rotational speed of its moving parts. The rotational speed of a machine is measured in RPM or a related unit. The operating temperature of a motor refers to the range of fluid temperatures it can handle. The temperature threshold is determined by the materials used in the motor components, which can vary between products.