Piston Seals

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  • A piston sealing is used for outside sealing. Its design is crucial for the functioning of the entire assembly. Piston seals with elastomer leaders, lip seals, chevron sets and more. A number of profiles are offered on the market – we will assist you in making the perfect choice.

    Standard profiles

    The standard profiles shown below are seals that represent the state of the art. We manufacture these standard seals in-house or supply them as moulded parts from approved partners for all required groove dimensions in a variety of materials. Depending on the quantity, the material and your requirements, we will offer you seals in the appropriate manufacturing process – everything from one source!

    Profiles according to customer preferences

    If you have conditions which cannot be optimally solved with a standard profile, we can also manufacture a sealing system according to customers’ drawings or develop a system. In this field we are a development partner and are perfectly equipped to design the ideal product for you.

    Choosing the correct profile

    The more information is known, the better a sealing system can be adapted to a specific application. To choose the right profile and the optimal material, the following criteria are vital:

    • installation space
    • double or single-acting
    • pressure range
    • temperature range
    • medium
    • lifting speed
    • counter surface
    • installation option
    • friction behaviour
    • stick-slip behaviour
    • tightness
    • service life expectancy
    • price and availability

    Lip seals and chevron set

    Lip seals

    Application
    • for all areas of hydraulics
    • single direction sealing element
    • high tightness
    • assembly in closed grooves possible
    • many sizes available as moulded parts
    • profiles also for pneumatics use

    Chevron set

    Application
    • mining, presses, special machinery
    • single direction sealing element
    • high tightness
    • adjustable
    • available in slotted version
    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 lip seals for higher pressures up to 700 bar are possible

    Compact piston seals

    Application

    • universal use for standard cylinders
    • cost-effective for 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

    Application

    • double-sided and single direction sealing elements
    • universal use
    • low friction
    • high sliding speeds
    • small installation space
    • high service life
    Pressure range:

    up to 600 bar

    Sliding speeds:

    up to 15 m/s

    Temperature range:

    -55 to +280 °C (depending on material)