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Hydraulic Power Units

A reliable source for Hydraulic Motor information and leading Hydraulic Motor Companies & Manufacturers.

Hydraulic power units differ from regular pumps in that they regulate fluid temperature and have multiple stages. They are an integral part of machines that rely on hydraulic power for operation. Read More…

Hydraulic Power Units Hydraulic power units provide pressurized flow to hydraulic cylinders, motors, and other hydraulically-powered mechanisms.
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Leading Manufacturers

Newark, NJ  |  800-633-8234

It is our goal that we are able to maintain our position as one of the leading producers and manufacturers of hydraulic motors and that we may provide our products to an ever growing customer base worldwide!

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Metro Hydraulic Jack Co. $$$

Chesterfield, MI  |  800-422-4279

Attica is your one stop service center for all of your fluid power product requirements. Our mission is to provide a superior product, meeting our customers' needs and expected quality, at a superior value. Browse the site, see what we have to offer, and you will find why, for over three decades, Attica Hydraulic Exchange is The Benchmark for Quality and Service.

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Attica Hydraulic Exchange Corporation $$$

Traverse City, MI  |  800-558-6636

Since 1921, The Oilgear Company has specialized in hydraulic equipment. Our specialties include hydraulic motors, hydraulic power systems and other hydraulic systems. We are headquartered in Wisconsin and have facilities all over the world. We provide the global industry with top-quality fluid power solutions. To learn more, call or visit our website to speak with an Oilgear representative.

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Oilgear $$$

Streetsboro, OH  |  800-626-2801

Founded in 1964, Permco offers the highest quality product possible to our wide customer base of OEMs and distributors. Because we understand that our success depends on the success of our customers, we are committed to reducing customers’ costs and increasing the simplicity of doing business with us. Permco has grown and prospered through lasting partnerships with our customers. We will continue to grow by understanding that our success is entirely dependent on the success of our customers.

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Permco, Inc. $$$

Memphis, TN  |  901-794-4884

Flint Hydraulics, Inc. is dedicated to the worldwide distribution of original and replacement hydraulic pumps, hydraulic motors, and hydraulic replacement parts for heavy mobile and industrial equipment. Off-the-shelf availability coupled with the distribution center advantages Memphis, Tennessee has to offer give use the unique ability to provide hydraulic components across the globe, with same or next-day shipment in most cases.

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Flint Hydraulics, Inc. $$$
placeholder image Metro Hydraulic Jack Co. Attica Hydraulic Exchange Corporation Oilgear Permco, Inc. Flint Hydraulics, Inc.

Axial Vane Motor Hydraulic Power Units - Von Ruden Manufacturing, Inc.

The hydraulic power unit is comprised of several key parts and components. The three main components of a hydraulic power unit are the motor pump, accumulator and reservoir tank. The power unit’s pump is responsible for pulling the working fluid out of the reservoir tank and moving it into the accumulator. The accumulator is a container which collects the hydraulic fluid and helps build and maintain pressure in the system.

Once the pressure within the accumulator has reached a pre-set level, the fluid is released and circulated in the hydraulic system. The fluid moves the components of the motor, which in turn rotates the shaft that supplies mechanical power. The fluid is then discharged into the reservoir, where it will work its way back into the pump and continue the cycle.

In hydraulic cylinders, the hydraulic power unit pumps hydraulic fluid into the bottom chamber of the cylinder and pushes the piston rod up, which pushes the fluid in the other chamber back into the reservoir. The movement of this fluid pressurizes the chamber and extends the piston to its full length, giving the hydraulic cylinder its ability to push. Since these systems can require high pressures, it is important that these power units be equipped with temperature regulation equipment.

Coolers and heaters are used to ensure that the hydraulic fluid remains within operational parameters and to make sure that the hydraulic equipment does not sustain any damage. Power units can be used for a huge range of applications, including in aerospace test equipment, automation equipment, heavy machinery, marine equipment, and machine tools.