What a compression spring is

A compression spring is a mechanical component that is used to store mechanical energy in the form of elastic force. When compressed, the spring contracts and stores energy, which can be released later to generate an expanding force. Compression springs are used in a wide range of applications, including vehicle suspensions, closure systems, damping systems, and many others.

Compression springs typology

Cylindrical and conical compression springs, with constant or variable pitch, in round wire, in square or rectangular sections.


Compression springs in round wire from 0.08 mm to 20.00 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 SiCr according to norm EN 10270-2.
  • Inox steel wire of types 1.4310, 1.4310 HS, 1.4568, 1.4404 according to the EN 10270-3 and of types 1.4301, 1.4539 according to norm EN 10088-3.
  • Copper alloys: phosphorous brass and bronze according to norm EN 12166.

For all of our products, on demand from our clients, we are able to supply treatments for the protection of surfaces, as a result of 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: compression springs