How do I determine which gas spring I need?
Selecting the right gas spring involves more than simply copying a gas spring from a catalogue. The gas spring must suit your application, operation and mounting position. A poorly chosen gas spring can lead to reduced performance, unsafe situations or accelerated wear of materials.
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Key parameters for selection
When investigating which gas spring is suitable, the force (or pressure), the length and the mounting points are of decisive importance first and foremost. Manufacturers often refer to these as stroke length, extended length, spring force and mounting angle. For example, determine the load (weight) that the gas spring must support, the distance from the pivot point to the centre of gravity, and the location where the spring is mounted. You then need to map out the mounting angle and movement: does the flap open to 90° or more, for instance? Is the cylinder mounted vertically or horizontally? These factors influence the required force and the behaviour of the spring.
Step-by-step guide to selecting the right gas spring
To determine which gas spring is suitable for you, start by establishing the weight of the components you wish to support, such as a flap or a hatch. Next, measure the distance from the pivot point to the centre of gravity and the mounting points of the gas spring. You use this data to calculate the required force and length. It is important that the gas spring fits within the available space in both the retracted and extended position, and that the stroke length is sufficient for the desired opening angle.
Normally, this requires precise measuring and calculation. But it can also be made a great deal simpler. At T-Technics, you only need to enter the correct values into our online configurator, after which you can immediately see which gas spring best suits your application. This way, you are assured of a fitting solution.
Why is an exact calculation important?
A gas spring that is too light provides insufficient support, causing components to sag or not stay in position properly. A gas spring that is too strong makes opening or closing unnecessarily heavy or may come into mechanical conflict with other components. That is why a proper calculation is essential. The mounting position and the angle at which the spring operates also play a role — many applications require a bespoke solution.
Practical advice when choosing a gas spring
Measure the weight and mounting distances carefully before ordering. Allow for a margin to account for wear, temperature fluctuations and variations in mounting. Manufacturers often recommend calculating 10–15% additional force above the computed value. Ensure that in many applications the gas spring cylinder is mounted with the piston rod pointing downwards or at an upward angle, so that the seal remains lubricated and the lifespan is extended.
Buying the right gas spring from T‑Technics
Have you gathered the correct data and do you know which gas spring you are looking for? With us, you will find a wide range of high-quality gas springs to help you make the right choice. Every model meets strict quality requirements and we are happy to assist you in selecting the right force, length and mounting. If you need help determining the right gas spring, please feel free to get in touch — we are happy to help. We are also glad to explain how a gas spring works and how to mount a gas spring, so you can get started straight away.