Piston seals for hydraulic cylinders
The design of a piston seal is crucial for the function of the entire assembly. There is a wide range of profiles on the market – we help our customers and interested clients to make the optimal selection.
By the standard profiles shown, we mean seals that represent the state of the art. We manufacture these standard seals ourselves or supply them as moulded parts from tested partners for all required groove dimensions from a variety of materials. Inch and intermediate sizes, but also largest diameters up to 3000 mm can be realized.
Depending on the quantity, the material and your requirements, we can offer you seals from the appropriate manufacturing process – all from a single source!
You can also find a general overview and further information in the following categories:
- U-Cups and chevron sets
- Compact piston seals
- Piston seals with leader elements made of elastomer
The more information is known, the better the sealing system can be adapted to the application.
To choose the right profile and the optimal material, the following criteria are important:
- installation space
- double-acting or single-acting
- pressure range
- temperature range
- medium
- stroke speed
- counterface
- mounting possibility
- friction behavior
- stick-slip behavior
- tightness
- service life expectancy
- price
- availability
Piston seals – U-Cups and chevron sets
- high tightness
- single acting sealing element
- available in slotted design
- fields of application: mining, presses, special machine construction
- adjustable if required
Pressure range: | up to 400 bar* |
Sliding speeds: | up to 0,5 m/s |
Temperature range: | -55 to +220 °C (depending on material) |
* Special solutions for U-Cups for higher pressures up to 700 bar can be realized!
Compact piston seals
The compact piston seal is a double-acting sealing and guiding element. It is available in various designs and is ideally suited to a wide range of applications. In principle:
- universal use with standard cylinders
- cost-effective with standard dimensions
- compact installation space
Pressure range: | up to 400 bar |
Sliding speeds: | up to 0,5 m/s |
Temperature range: | -55 to +220 °C (depending on material) |
Piston seals with leader elements made of elastomer
- single-acting and double-acting sealing elements
- universal application
- wide range of materials
- low friction
- high sliding speeds
- no stick-slip effect
- small installation space
- long service life
- inch and intermediate sizes up to a diameter of 3000 mm can be realized
Pressure range: | up to 600 bar |
Sliding speeds: | up to 15 m/s |
Temperature range: | -55 to +280 °C (depending on material) |