The U-Cup seal has a U-shaped profile, including an outside static sealing lip and an inside dynamic sealing lip. U-cup seals are commonly used in hydraulic cylinders for piston or rod applications in equipment that relies hydraulic or pneumatic power.

The sealing function is achieved by applying pressure with the sealing lip both on the piston and the cylinder. Depending on customer function, Fannteer offers a wide range of U-Cup in various forms and produces them from a broad range of materials.

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