Piston backup seals are engineered to provide crucial sealing reinforcement in hydraulic systems, especially under high-pressure and high-load conditions. Designed to prevent extrusion and extend the service life of primary seals, these components are widely used in hydraulic cylinders for their ability to ensure high-pressure piston sealing with backup rings. Often paired with backup ring O-rings, these seals deliver enhanced sealing performance, significantly reducing the risk of leakage and system failure. Our PTFE backup rings are a popular choice for their exceptional durability and low friction properties, making them ideal for heavy-duty use. Whether you require sealing rings for pistons in industrial machinery or piston backup rings for hydraulic cylinders, our solutions are tailored to deliver long-lasting performance, wear resistance, and maximum efficiency across demanding applications.