Extension springs are designed to absorb and store energy and create a resistance to a pulling force. It is initial tension that determines how tightly together an extension spring is coiled. This initial tension can be manipulated to achieve the load requirements of your particular application.

End loops or hook designs vary widely. Many different configurations are normally used such as machine hooks, cross-over center loops, hooks or loops extended away from the body, centered hooks or eyes, swivel hooks, but any design that fits your application can be used.

Our state-of-the-art CNC spring forming equipment is able to complete many of the designs straight off the machine. This eliminates the more costly secondary operations and gives us the capability of holding much tighter tolerances.

We are equipped to produce extension springs from .010 to .250 wire diameter

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