Hydraulic applications are challenging for Seals. Not only must the hydraulic seals prevent leakage of fluid from the Cylinder, but hydraulic seals must also withstand high pressures, extreme temperatures and transverse forces within the cylinder. In such applications, the function of Hydraulic Seals goes far beyond preventing fluid leakage.

Hydraulic Cylinder Seals: Performance and durability

Hydraulic systems are sealed using a combination of specialized seals. Rod seals prevent leakage of fluid from within the cylinder to the outside while hydraulic piston seals prevent fluid from flowing across the cylinder head. This allows pressure build up on one side of the piston, making the Cylinder extend or retract. Wear rings guide the piston and piston rod within the hydraulic cylinder, absorbing transverse forces, preventing metal-to-metal contact. Scrapers or Wipers scrape dirt, foreign particles, chips or moisture from the piston rods as they retract into the cylinder, preventing contamination.

Innovative materials for Hydraulic Seals

Hydraulic Seals from Trelleborg Sealing Solutions are the first choice when it comes to sealing a high-performance cylinder. Our proprietary materials, such as Polytetrafluoroethylene (PTFE) based Turcon® or polyurethane (PU) based Zurcon® ensure maximum durability and performance with minimum maintenance.

Specially engineered – extraordinarily efficient

Hydraulic systems are usually sealed with a complex configuration of high performance seals. Our Hydraulic Seals products range includes O-Rings and a number of innovative Seals designed for applications in hydraulic cylinders, such as the spring-energized Turcon® Variseal®, O-Ring engergized Turcon® Stepseal®2K, Zurcon® polyurethane U-Cup RU9 and many more.

Discover our Hydraulic Cylinder Seals product range

Trelleborg Sealing Solutions offers a wide range of Seals for all applications within hydraulic cylinders:
Rod seals and piston seals prevent leakage of fluid from cylinders and stop pressure buildup.
Wear rings guide the piston and piston rod preventing metal to metal contact.
Scrapers or Wipers are Seals which prevent external media from entering the cylinder.