Torsion

Torsion springs differ from both compression and extension springs in both application of load and method of operation. They are coil springs that exert a torque (or resist a torque) in an arc with the legs rotating around the axis and the body coils being stressed in bending. An infinite number of variations are possible for the leg formation but simplicity is often the best guide.

FIND OUT MORE

Wire Form

Almost the only limit when it comes to wire form manufacture is the imagination of the designer. Almost any conceivable 2D or 3D shape can be achieved although our early involvement in the design process can help to avoid the inclusion of potential failure points. Wire forms can be manufactured using materials from drawn carbon steel and stainless steel to exotic materials such as Inconel X750, 625, 718 and Nimonic 90.

FIND OUT MORE

Tension

Tension (or extension) springs work in the exact opposite manner to compression springs. They are close –coiled springs that extend under the application of a pulling force applied to a hook or loop at each end of the spring. These can be formed either from the first and last coils of the spring body or by the inclusion of a separate hook, necessitating that the ends of the spring body are "coned" down in diameter or by a screw insert.

FIND OUT MORE

Compression

Compression springs are open wound springs that exert a force when compressed with the coils being stressed in torsion. They are generally cylindrical but may be conical, barrel shaped or concave. They are the most common form of spring used in engineering, accounting for over 50% of all springs manufactured. The ends of a compression spring may be finished in several ways, left open, open and ground, closed or closed and ground. The two most common types of end are closed and closed and ground. The grinding allows the spring to stand upright but may be unnecessary for springs of a small diameter or a large index.

FIND OUT MORE

Pressings

Pressings are springs that are manufactured from sheet or strip. They may be flat, have bends, radii, have holes or cut out shapes or a combination of all of the above and can be made from a wide range of materials and are often made from pre-hardened material although sometimes it is necessary to manufacture from annealed material and apply a post forming harden and temper operation. Most pressings are loaded in bending with the cantilever spring being the most simple.

FIND OUT MORE