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Hydraulic Actuators

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The most common application of hydraulic actuators is in the construction industry where heavy equipment is needed to move large loads. An actuator is controlled by a control system, either automated or manually operated by a human. Read More…

Hydraulic Actuators Double Acting Hydraulic Cylinders

Hydraulic actuators are motors powered by hydraulic fluid pressure that use force to move or control a system or piece of equipment.

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Leading Manufacturers

Strongsville, OH  |  440-238-7343

Our company name is not a misnomer-we have been manufacturing cylinders and valves since 1958. We manufacture air and hydraulic cylinders plus their associated valves and replacement parts.

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Cylinders & Valves, Inc. $$$

Buffalo, NY  |  716-893-6510

For over 60 years, our company has offered hydraulic solutions to complex high pressure problems. We distribute products such as hydraulic cylinders, hydraulic presses, hydraulic pumps, hydraulic valves (both direction and solenoid), control valves, flow valves and more.

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Buffalo Hydraulic $$$

Newark, NJ  |  800-633-8234

We take pride in saying that we are a family owned business. Our company has over 70 years of manufacturing experience. We will provide all of your needs and you can count on us to get the job done correctly.

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Metro Hydraulic Jack Co. $$$

Little Rock, AR  |  501-375-1141

Phelps Industries specializes in hydraulic cylinders, heavy duty hydraulic cylinders, high pressure hydraulic cylinders, telescopic hydraulic cylinders and hydraulic cylinder repair.

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Phelps Industries, Inc. $$$

Athens, TN  |  800-737-8988

Southern Hydraulic Cylinder manufactures custom welded and telescopic hydraulic cylinders. We maintain inventory on 5" bore and smaller single-acting telescopic cylinders and build-to-order all welded hydraulic cylinders with bores up to 10".

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Southern Hydraulic Cylinder, Inc. $$$
placeholder image Cylinders & Valves, Inc. Buffalo Hydraulic Metro Hydraulic Jack Co. Phelps Industries, Inc. Southern Hydraulic Cylinder, Inc.

A backhoe, for example, is powered by a hydraulic actuator that allows it to dig into the earth and scoop up large amounts of material. This action is controlled by a human operating the equipment and guiding the actuator's movement by using a joystick or series of operating controls.

2000 Series Hydraulic Actuator with Tie Rods Hydraulic Actuators - Cylinders & Valves, Inc.

A hydraulic actuator consists of a cylinder that uses hydraulic power for operation. This cylinder motor allows for movement in all directions, and the fluid compression allows for a high level of force to be exerted. A long hollow tube is at the center of the cylinder, and the single piston is able to slide up and down this tube to generate and release pressure. Pressure can be applied to just one or both sides of the piston. When more pressure is applied to one side than the other, the cylinder is pushed in the direction where the least force was exerted.

If the piston moves with equal pressure from both sides, then the cylinder goes forward. A piston rod typically has mounting attachments on the end to connect the cylinder to the component that it is pushing or pulling. A hydraulic pump constantly pushes a regulated flow of fluid to the piston.

The cylinder of a hydraulic actuator is assembled using a number of manufactured parts that include the barrel, the cylinder cap, the cylinder head, the piston and piston rod, the seal gland and the seals. Many other small components are used on the interior of the cylinder to help control pressure and fluid flow.

The seals are designed to match the intended maximum pressure of the hydraulic actuator on which they will be fitted. Usually they are made from rubber or polyurethane if they are going to be used in low temperature environments, and fluorocarbon viton is generally considered to be stronger in high temperature settings.