What a traction spring is

A traction spring is a type of spring that is designed to resist stretching forces. When a force is applied to stretch the spring, it will try to return to its original length and exert a force in the opposite direction. These springs are commonly used in various mechanical devices to provide a restoring force or load, such as in drive mechanisms, automobiles, suspension systems, and many others.

Traction springs Typology

Tractions springs with all types of eyelets (English, German, embossed, single, double, extended, inserted) in round wire, in square or rectangular section.


Tractions springs in round wire from 0.15 mm to 6.00 mm (small and medium series till 20 mm).


Currently the following materials are being used:

  • Carbon steel wire of classification: SL, SM, SH, DH according to norm EN 10270-1, also in pregalvanised and Bezinal®
  • Oil pretempered steel wire FD, TD, VD Cr-Si according to norm EN 10270-2.
  • Inox steel wire of types 1.4310, 1.4310 H, 1.4568, 1.4404 according to the norm EN 10270-3 and of types 1.4301, 1.4539 according to the norm EN 10088-3.
  • Copper alloys: phosphorous brass and bronze according to norm EN 12166

60 million pieces.

For all of our products, on demand from our clients, we are able to supply treatments for the protection of surfaces, thanks to our vast network of reliable suppliers such as:

  • Epoxide coatings.
  • Cataphorised coatings.
  • Zintek® coatings.
  • Geomet 320®, Magni 565® and all products by Magni, Deltatone®.
  • White and yellow trivalent galvanisation (free from Cr VI)
  • Phosphated to zinc, to calcium.
  • Passivation.
  • Aesthetic nickel and chrome platings, thick chrome, hard chrome, chemical nickel, gold, silver, brass, copper.
  • Teflon coating.

We are also able to carry out internally thermal stress relieving treatments, shot-peening, oiling and washing (both on inox and on carbon with autopassive liquids).

Product data sheet: tractions springs