Hydraulic Cylinder Seals

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

Hydraulic cylinders produce linear motion by using pressurized fluid. They vary in design, size and material according to the pressure and temperature requirements, but most hydraulic seals used in cylinders are shaped similar to o-rings but with a more complex profile. Read Moreā€¦

Hydraulic Cylinder Seals Hydraulic cylinder seals are tools used to maintain pressure levels in hydraulic cylinders; they are crucial to the safety and efficiency of a functioning hydraulic cylinder.

Leading Manufacturers

Sparta, NJ  |  973-383-2487

For over 20 years, it has been our dedication to service and outstanding product quality in all our hydraulic seals that have set us apart. We deliver high quality products every day, including o rings, metric seals, pneumatic seals, Teflon seals, and a whole lot more. We have sealing experts that can optimize each system performance with configurations that will solve your real issues. Contact us today to learn more!

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Allied Metrics Seals & Fasteners, Inc. $$$

Akron, OH  |  877-771-6766

We are not only technically knowledgeable about hydraulic seals, but we also have the hands-on experience to back it up. We have over 30 years of industry experience, and we can use that experience to benefit you. We have faced nearly every problem and know the right solution for most problems. We can offer both stock and custom seals to benefit you. We will always put the customer first, so contact us today!

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Premier Seals Manufacturing $$$

Cleveland, OH  |  800-860-6210

North American Seal & Supply distributes and fabricates a variety of seal and packing products: standard o-rings, metric o-rings, molded and extruded o-rings, gaskets, o-ring kits and more. We can help you find a unique solution to your application, so call us today or visit our website.

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North American Seal & Supply, Inc. $$$

West Jordan, UT  |  800-669-9638

At HydraPak, we make replacing your hydraulic seals easy, so you can get your seal repair jobs completed quickly, saving you time money. Even the most difficult seal repair challenges can be handled by our knowledgeable staff to get your equipment. We offer expertise in products for high-tech applications, as well as the ability to source everything from o-rings to sheet goods to sealing devices.

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HydraPak Seals, Inc. $$$

Chandler, AZ  |  480-892-7325

Our list of inventory has grown since our founding over 20 years ago. We started small, but now offer an extensive product list of hydraulic seals, o rings, and other rubber products. We take pride in what we do, and we inspect every product to ensure it meets our rigorous safety standards. Contact us today so we can get started finding the solution to your problem!

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Arizona Sealing Devices, Inc. $$$
placeholder image Allied Metrics Seals & Fasteners, Inc. Premier Seals Manufacturing North American Seal & Supply, Inc. HydraPak Seals, Inc. Arizona Sealing Devices, Inc.

Hydraulic cylinder seals are made of a wide variety of materials, usually elastomers, including rubber, some plastics, Teflon and sometimes metal like iron. There are a few different parts in a cylinder that require seals. The piston and rod both use them to prevent leaking hydraulic fluid, keep outside particles from entering the cylinder, provide lubrication and eliminate any metal-to-metal contact of different cylinder parts.

Hydraulic Seal Model Hydraulic Cylinder Seals - Allied Metrics Seals & Fasteners

These seals are found within the automotive, aerospace, defense contracting, oil and gas, chemical processing, industrial machinery manufacturing, plastic molding, construction, agricultural, forestry and wind power industries, among others. Since all hydraulic cylinders contain multiple seals, they are components in machinery and vehicles like plastic injection molding machines and presses, commercial and military aircraft, cars, bulldozers, excavators, backhoes and turbines. Hydraulic cylinder seals must have low friction, resistance to water, oil and chemicals and be able to withstand extremely high pressures.

The hydraulic cylinder itself is usually composed of aluminum, steel, iron or bronze. It uses water or oil as the pressurized hydraulic fluid that produces energy. They power machinery that has very high force or multiple moving parts that operate simultaneously. Seals are located in the piston, on the cylinder head and on the rod. The piston seal prevents pressurized hydraulic fluid from flowing across the piston.

It is usually made of an elastomeric material. The seal located on the cylinder head prevents pressurized oil from leaking past the interface between the rod and the head, while the rod seal prevents leaking of hydraulic fluid to the outside and provides a degree of lubrication. Hydraulic cylinders also use wear rings, a type of seal that prevents any metal-to-metal contact, as well as rod wipers, which prevent contaminants from entering the cylinder when the extended rod reacts back into the cylinder.

Each seal is equally as important to maintain an efficient and safely operating hydraulic cylinder. Without seals, they would completely fail, causing the machinery to become unusable. While they last for long periods of time, regular maintenance checks to ensure the seals have not worn or aged will prevent seal failure.

Hydraulic Cylinder Seals Informational Video