What’s the Difference Between Hydraulic Motors and Pumps?

While there’s no real difference between the designs and overall construction of both a hydraulic pump and a hydraulic motor, that doesn’t mean these two components are the same. The difference might be minor, but it makes a big difference in regards to how the two pieces function. If you’re interested in learning how different hydraulic pumps and motors are from one another, then this is the guide for you!

Hydraulic Pumps

In essence, a hydraulic pump is a section inside a hydraulic system that focuses on converting the mechanical energy exerted from the main mover, which is a turning force into liquified energy. This typically results as a form of oil flowing in the system. The rate in which the flow of oil is expressed is in gallons per minute. The GPM will then determine the speed that the system will operate. There are a variety of types of hydraulic pumps available, including the gear, the piston, the vane and much more.

Hydraulic Motors

The hydraulic motors within a functioning system are the actuators for the entire thing, alongside the cylinders. As a hydraulic component, the actuator performs the physical labour within the system. As with other motors in various devices, a hydraulic motor works to convert any fluid energy that’s been created by the hydraulic pump into energy of the mechanical sort. This is what allows the motor to do the physical work. Much like a hydraulic pump, a hydraulic motor can include gears, vanes or pistons in design. But the most common motor is the rotary design.

How They Work Together

Within a hydraulics system, the pump converts mechanical energy into liquid energy, taking on the form of oil flow. This oil flow that’s been created now needs to be directed towards the hydraulic motor through one of many system valve types. It could be a directional control valve, a selector valve or a flow divider. When the oil flow has successfully reached the motor, that oil is converted once more into mechanical energy in order to perform tasks relating to physical work.

So What’s the Difference Between the Two?

Both system components, the hydraulic pump and motor, perform opposing tasks, one converting oil into mechanical energy and the other doing the reverse. While each component has a separate purpose, they both rely on one another to successfully fulfil that purpose within the hydraulic system.

At S&T Hydraulics, our experienced technicians specialize in both the reconstruction and repair of hydraulic components that include pumps, motors, cylinders, valves and more. Located in Toronto, Ontario, we have over 30 years of experience working in the manufacturing, agricultural, industrial, automotive and mobile industries. Our services include hydraulic hose repair and replacement, system maintenance, leak audits, troubleshooting and hydraulic testing. Be sure to give us a call today or visit our website to get yourself a free job estimate.