Tension Spring

Tension Spring

Tension Spring

Tension springs are also called extension springs. A tension spring in action is comparable with a trampoline. The spring uses the tension created by an outside force to pull the components back together, components to which the spring is attached.

The tightly wound coils of the tension spring operate with the force. Tension springs have helical wound coils with a hook, loop, and end coil at its one or both the ends. Based on its end design, the tension springs can be classified in many types.

This spring can be attached from both the ends to the other components creating the tension in the spring which in turn attempts to bring the components back together when they try to move further apart.

The coils of the spring touch and are tightly bound until a force is applied to them. When force is applied, the spring coils are pulled apart as the components are moved in the outward direction.

The process of spring making involves hot and cold coiling procedures.

Types Of Tension Springs
Spring Steel with wire diameter 0.15 to 60 mm.

Square wire with wire diameter up to 20 mm.

Stainless Steel with wire diameter 0.15 to 60 mm.

The distance between the end design and spring body can be adjusted to get the desired spring design and thus a variety of spring designs can be created in this way. We offer customized material as per the need of the client.

Hook Types:
One more design customization is done by hook type’s variations of the tension springs.

The variations based on spring hook types are –

Double Twisted Full-Loop over the center.

Long Round End hook over the center.

Hand Loop & Hook at right angles.

Machine Loop and Machine Hook.

Different materials can be used to make tension springs – stainless steel, music steel (spring steel), hard drawn, beryllium copper, oil tempered, and phosphor bronze. At Khodiyar Spring Industries, we make stainless steel tension springs.

Uses Of Tension Springs
Tension springs absorb and then store energy. They resist the pulling force and the tension applied to them. With the load, the tension spring gets stretched and tries to get back in its shape by pulling the components back.

Tension springs are fit for lever-based mechanisms. As they absorb energy and create resistance towards the pulling force.

Applications Of Tension Springs
There are many uses of tension springs that rely on their unique properties of absorbing, storing energy, and pulling back to regain the normal shape. These versatile springs are used across different industries.

Tension springs are mostly used in –

Automotive interiors and exteriors.

Washing devices.



Garage door assemblies.


Vise-grip pliers.

Small medical devices.

Machine’s brake springs.

Farm machinery.



Construction components.

Benefits Of Using Tension Springs
They differ from other springs in the tightness of their coils. This tightly wound coil design of tension springs is an essential feature helping the spring in stretching more.

These springs undergo a series of tests to check its reliability and based on that the spring seller lists the properties of the spring. Features like – seat pressure and coil bind height need to be mentioned.