Kudas Parts · Gas Springs

Fixed Force Gas Struts.

A straightforward solution for replacement and repeat applications where the required force, extended length and end fittings are already known.

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Fixed force · replacement focused

Selecting a replacement

Match the key details.

Fixed-force gas struts are supplied at a predetermined force. For a like-for-like replacement, the most useful starting information is the force rating on the existing strut, its fully extended centre-to-centre length and the type of end fittings used.

Check the force

Look for the force rating marked on the body of the existing gas strut. It is normally shown in Newtons (N).

Measure the length

Measure the gas strut fully extended, from the centre of one end fitting to the centre of the other.

Identify the fittings

Match the connection style at each end so the replacement can interface correctly with the existing mounting points.

Good replacement data: force in N + extended centre-to-centre length + end fitting details + application information.

Measurement guide

Measure from centre to centre.

Using a consistent measurement method helps avoid choosing a strut that is too long or too short. Measure the existing unit in its fully extended position and use the centres of the mounting points as your reference.

Extended length

Measure between the centres of the two end fittings rather than measuring the overall tip-to-tip length.

Tip: If the existing strut is still installed, make sure the application is safely supported before removing or measuring components.

What to send Kudas Parts

If you are unsure which replacement is suitable, send as much of the following information as possible:

Force rating shown on the strut
Fully extended centre-to-centre length
Photos or details of both end fittings
Where the strut is used
Any existing part number or markings

Force not known?

Use an adjustable strut when the force needs to be established.

If the original force rating is unavailable, or the gas strut is for a new application, an adjustable-force solution can be a better starting point because the force can be fine-tuned around the application.

Explore Adjustable Struts →

Fixed-force guidance

Common questions.

These are the main checks to make before replacing an existing fixed-force gas spring or gas strut.

What is a fixed-force gas strut?

It is a gas strut supplied with a predetermined force rating. It is well suited to applications where the required force is already known.

Can I use one as a direct replacement?

Potentially, yes. The important details are force, extended length, stroke or geometry where relevant, and compatible mounting/end fittings.

Where do I find the force rating?

Check the body of the original strut for markings that include a Newton value, such as a number followed by “N”.

What if I cannot identify the old strut?

Send Kudas Parts the dimensions, markings, fitting details and photos of the application. We can use that information to help identify a suitable route.

Kudas Parts support

Need help matching a fixed-force strut?

Send us the force, dimensions, fitting details and application information you have, and we’ll help you work through the replacement requirements.