Hydraulic and Pneumatic Seals

Hydraulic & Pneumatic Seals seal linearly moving parts in hydraulic and pneumatic equipment. The category focuses on rod and piston functions together with the associated guiding and contaminant-exclusion functions.

A linear seal operates where a rod or piston moves relative to its housing. Guide elements complement the sealing function by supporting moving parts, while wipers help prevent contamination from entering around the moving rod.

These seals belong in hydraulic and pneumatic cylinders and other equipment with linear movement. The sealing overview identifies hydraulic oil and linear seals as an application area. Rotary and other static sealing groups remain outside this category.

First identify whether the position is at the rod or piston. Then define whether the function is sealing, guiding or wiping and whether the system is hydraulic or pneumatic. Check the dimensions and select a standard seal or a custom-produced linear seal.

Key attributes are hydraulic or pneumatic application, rod or piston location, sealing, guiding or wiping function and standard or custom dimensions.

Frequently asked questions

A rod seal operates around the moving rod, whereas a piston seal belongs at the moving piston. Identify the sealing location first, then define whether additional guiding or contaminant exclusion is required.

A wiper helps keep contamination away from a moving rod. Select this function separately from the primary seal and guide elements so that every component in the linear sealing arrangement has a defined task.