Free online tools
Spring calculators and configurators
Size the right spring in a few minutes. Our tools calculate with the same data as our product range and suggest matching springs you can order directly.
01EN 13906-1Compression spring calculator
Find a stock compression spring from your installation space and forces, or design your own spring and check it against EN 13906-1.
- Search by operating point: lengths and forces
- Design mode with stress and buckling check
- Compare up to 3 springs side by side
02EN 13906-2Extension spring calculator
Find a stock extension spring from your working length and force, or design your own spring with German loops and check it against EN 13906-2.
- Force from initial tension, rate and test length
- Optional second working point
- Design mode with initial tension and stress check
03Gas spring configurator
Set length, stroke and force, choose end fittings and see the gas spring to scale before you order.
- Push, traction and lockable gas springs
- Matching end fittings added in the same step
- Scale drawing and force chart
04Gas spring calculator for lids and flaps
Enter the size and weight of the lid and where the hinge is. We calculate the force and mounting points and find matching gas springs.
- Lids, hanging flaps, inclined and floor hatches
- Mounting positions and hand force
- Worst case at the lowest and highest temperature
05Disc spring stack calculator
Find a disc spring stack for your force and travel, or calculate your own stack with springs in parallel and in series.
- Parallel and series stacking
- Best match for your force and travel
- Order the whole stack in one go
In every tool
Can't find the right spring?
We are happy to help you choose. For sizes outside the standard range we deliver springs made to your specification.