Hydraulic Seals

Hydraulic applications are challenging for Seals. Not only must the hydraulic seals and cylinder 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 Seals in our e-Catalog
• Use our CAD Service to download seal profiles direct to your CAD drawings
• Watch our Hydraulic Seals film
• Turcon M12 -superior PTFE seal material for hydraulic

We also offer an e-Learning program on sealing technology:

• Hydraulic Seals - Lesson 1: Basics
• Complete e-Learning portfolio

Hydraulic Cylinder Seals: Performance and Durability

Hydraulic systems are sealed using a combination of specialized cylinder seals. Hydraulic 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.

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.

• Find out more about our Hydraulic Rod seals product range
• Discover our Piston seals

  Wear rings guide the piston and piston rod preventing metal to metal contact.

• Explore our wide range of Wear Rings and Guide Rings

  Scrapers or Wipers are Seals which prevent external media from entering the cylinder.

• Learn more about our Scrapers and Wipers