Custom Extension Spring Manufacturing

Extension Springs work by resisting the pulling or tensile force to which their ends are attached. Extension springs use various types of ends including machine hooks, crossover loops, side loops, and others. It is important to have a well-designed extension spring to achieve the desired spring rate and avoid fatigue failure.

Extension springs are typically designed with closed coils which then open upon application of tensile force. Extension springs are designed with a variety of hook styles depending on the application, such as cross-center, extended, and side hooks. The most common extension spring material is round wire. We can manufacture extension springs as small as 0.012” wire diameter and as large as 0.148” wire diameter.

Prototype to low volume production

Simple to complex parts

Quick production turnaround 

Spherical, conical and pointed ends

Plating, Cleaning, Electropolishing, & Painting Services

Available in a wide variety of materials 


Parts shipped in 2-4 weeks standard

Custom Spring Manufacturing Services

Compression Springs

Types of custom precision compression springs we manufacture include conical, hourglass, barrel, constant pitch, variable pitch, and more. Gifford manufactures both prototype and large-volume production runs of custom compression springs.

Wire Forms

Wire Forms range from simple handle constructions to complex parts with multiple bends. Gifford Spring specializes in both. We manufacture complex wire forms, hooks, rings, frames, and clips. Wire forms typically contain a combination of bends to suit the customer’s application.

Torsion Springs

Types of custom precision torsion springs we manufacture include double torsion, hinge ends, short hook, straight offset, and more. Gifford manufactures both prototype and large-volume production runs of custom torsion springs.

Prototype Springs

We love quantity 1 and we are experts in manufacturing prototype springs. Types of custom precision springs we manufacture include compression springs, extension springs, torsion springs, and more.