National Springs and Wire Products design, develop and manufacture Compression, Tension and Torsion coil spring and Wire Forms.
A wire form is essentially a shape formed from wire. Wire forms range from the most simple such as a straight piece of wire to a highly complex 3D shape. Common examples are bungy cord end hooks, sinker wires and “R-clips” but the range is only limited by one’s imagination.
The Compression Spring is designed to operate with a compression load, so the spring gets shorter as the load is applied to it.
We can help you design your spring to suit its application and decide your required end type, from having the wind open to having the end accurately closed and ground on our CNC grinding machine, we can fulfill your needs.
Our up to date design technology can design the compression spring to suit your requirements.
Tension/extension spring – this spring is designed to operate with a tension load, so the spring stretches as the load is applied to it.
Some of the examples of the range that we currently supply are garage door springs, horse float tailgate springs through to very small delicate computer tray return springs.
We can assist you by advising on what type of spring and end formation will best suit your requirements , from single/double/triple loops to extended hooks with the opening best suited to your needs. What you require we can make.
A torsion spring is a spring that works by torsion or twisting; that is, a flexible elastic object that stores mechanical energy when it is twisted. When it is twisted, it exerts a force (torque) In the opposite direction, proportional to the amount (angle) it is twisted. There are two types. A torsion bar is a straight bar of metal that is subjected to twisting (shear stress) about its axis by torque applied at its ends. The other type, a helical torsion spring, is a metal rod or wire in the shape of a coil that is subjected to twisting about the axis of the coil by sideways forces (bending movements) applied to its ends, twisting the coil tighter. This terminology can be confusing because in a helical torsion spring the forces acting on the wire are actually bending stresses, not torsional or shear stresses.
Some of the examples of the range that we currently supply are large horse float tailgate torsion springs through to very small over head lighting retaining springs.
With the latest spring design software we can put your idea or design through its paces: applying working loads and manipulating material, size and configuration to deliver exactly what your spring or wire form is required to achieve.
Our capabilities range from single units through to 100,000+ production runs
We can supply product with a wide range of coatings, from zinc plating, powder coating, painting, hot dip galvanising and more.