Our material size range for these coil springs is.00039-inches to 0.472-inches or 0.01-12 mm.

Rainbow Spring's production capabilities for these coil springs can fill almost any client need, from a simple straight leg or a close wound spring for a clothes pin to a unique example of a double torsion spring,where one right coil section and one left coil section are connected and work in parallel.

With new manufacturing techniques, torsion end positions can be held to surprisingly close tolerances. Older design free angle tolerances often do not apply. Our facilities' modern forming machinery and production techniques allow for an infinite variety of torsion spring end shapes. When specifications call for very long spring legs, we recommend discussing your requirements with a Rainbow sales engineer. Our staff can verify manufacturing capabilities and will work to keep your production costs as low as possible. Spring ends can be:

It is important to consider the direction of loading when designing bends or forms off a spring's body or in spring legs. Favorable residual stresses can be created when bends are loaded in a direction that reduces the radius or curvature.