Locking gas springs with special functions

With the Varilock lockable gas springs, the SUSPA expertise is in particular distinguished by the finely mechanical valve design, which allows for a variety of special functions to be realized. The user thus not only receives a gas spring, but rather an intelligent system that adds indispensable added value to the application.

  • EasySwitch ES: Locking that can be switched on and off

    Lockable gas spring with EasySwitch function

    The "EasySwitch" module gives the user the opportunity to control the valve "digitally," namely alternating from the closed to the permanently opened position and back.

    The change between the two states is controlled by actuating the control element. With a chair, the EasySwitch keeps the valve open (oscillating feature) or closed (locked backrest) after actuation.

  • OverRide OR: Convenient extension without actuation

    Lockable gas strut with OverRide function

    The "OverRide" module makes it possible to release the locking in the extension direction without actuating the release. For table applications, the height is adjusted by applying a slight pulling force on the tabletop. Once reaching the desired position, the locking is rigid in the pressing direction.

    OverRide causes an extremely convenient operation that was originally designed for use in hospital beds and side tables. OverRide in particular allows for the single-handed actuation of the application.

  • TimeReset TR: Automatic reset

    Lockable gas spring with TimeReset function

    The "TimeReset" module automatically detects whether the application is loaded with a user weight or not. Under load, the lockable gas spring works conventionally and allows for variable locking. When the application is not loaded, the lockable gas spring returns to its starting position (vertical backrest) within a defined time period.  

    TimeReset is particularly suitable for passenger seats, cinema and theatre seating or conference chairs.

  • ComfortReleaseLow CL: Extremely easy operation of gas springs

    Lockable gas spring with ComfortReleaseLow function

    Using the "ComfortReleaseLow" module can adjust the lockable gas spring to the requirements of any release system in order to achieve maximum operating comfort. Conventional valve designs (standard release) cannot be conveniently triggered in the event of high extension forces. SUSPA ensures a convenient release through the lowest possible manual force on the actuating element (knob, lever). We are happy to advise you in the optimization of your application.

  • Lightweight lockable gas spring

    Lockable lightweight gas spring

    Lockable gas springs for aviation are ideal for the comfortable and safe adjustment of the sitting and lying position of passenger and pilot seats.


    Special features

    • Optimized weight due to the aluminum piston rod (60% weight savings compared to a conventional piston rod made of steel with the same performance)
    • High strength
    • Low release force
    • High spring stiffness


    Application Examples

    • Backrest adjustment in passenger and pilot seats
    • Leg rest for business and first class seats
  • OverloadProtection OP: Comfortable adjustment in extension direction

    Lockable gas struts with the special function OverloadProtection

    The special function OverloadProtection OP for the lockable gas struts HY3 and HY4 is used for the safe adjustment of the application in the extension direction without release. Thus, for example, massage couches, armrests and footrests can be adjusted comfortably and intuitively with one hand.


    Operating mode

    Upon exceeding a defined force in the extension direction, a valve opens and an adjustment in the extension direction is possible without using the release lever. Until this limited force is reached, the gas strut locks on extension as well as on compression load according to the selected types HY3 or HY4.



    • Adjustment in extension direction without using the release lever
    • Infinitely lockable
    • Intuitive adjustment
    • Long lifetime
    • Installation independent on position in case of HY3
    • Enables use with one hand

Are you already familiar with our gas spring CAD configurator?

CAD Configurator Easily, quickly and conveniently configure your custom lockable gas spring from various versions and connections with the CAD configurator.

Sector finder

SUSPA locking gas struts offer comfort and safety in many applications.