Extension springs

Unlike a compression spring, whose function is to keep two components apart, an extension spring applies a force that pulls two components together.
Extension springs are close-coiled so that only a limited force is required to begin extending them.
Based on customer requirements such as initial tension, spring-rate consistency and end attachment systems, we design an optimized spring by selecting the material, coil diameter and number of coils.
Although extension springs are commonly associated with trampolines, they are used across many industries including automotive, aerospace, space, defence and medical applications, for example in door mechanisms and braking systems.