Extension spring
When you need to create a pulling force in a compact design, the extension spring is a simple and reliable solution. You will find it as a counterbalance in everything from adjustable lamps and soft-close drawers to locks and other mechanisms where the pulling function is critical.
At EWES, you get extension springs where the physical product, the drawing documentation and the calculated force all match. That gives you a solution you can rely on, both in design and in operation.
Manufacturing in unique machines – developed for the purpose and in many cases the only ones of their kind – ensures even force development, high precision and long service life. Together with Northern Europe's most modern machine park, this creates the conditions for stable performance over time in your application.
Extension springs for counterbalance and balance
When force needs to be absorbed during extension and components need to return to their starting position, the extension spring is a crucial part of the design. It is loaded in the direction of pull and dimensioned according to the right load, spring rate and working length.
At EWES, we take force requirements, movement and attachment geometry into account. Particular attention is paid to the design of the hooks, which is critical to avoid local stress concentrations and premature failure.
The result is an extension spring that delivers even and controlled force throughout its entire service life.

Build your extension spring based on real-world conditions
Enter your parameters and get a solution dimensioned for the right force, the right movement and the right service life.
Extension spring products
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