Springs

Compression, extension, torsion springs

Flat springs and spring blades

SFAM offers all types of metal wire technical springs from the conception to the production.

 

Compression, extension, torsion or double torsion, we are wired to your ideas!

 

Our know-how and high technology machinery enables us to bend and coil spring metal (such as piano wire) in different diameters ranging from Ø 0.2mm to 18 mm and for flat springs, a thickness of 0.2 mm to 10 mm.
SFAM manufactures to your requirements convex, bended, folded, profiled wires.
Our diversified high performance machines allow the production of all kinds of springs “small, medium or large”.

Field applications:

Springs have different functions:

  • Trailing arm springs
  • Anti-vibration springs
  • Damping springs
  • Return springs
  • Link-type coil springs
  • Windscreen wiper springs
  • Cable return springs
  • Clothes pins springs
  • Torsion-bar springs
  • Snap rings
  • Pins
  • Sheaths
  • Coils
  • Custom made springs

 

Tip: by our experience and high performance computing, SFAM is capable of manufacturing springs to meet your unique specifications.

Forming processes:

The forming of a spring is a process that combines coiling, folding and cold working. All these operations make it possible to adapt to the different shapes required for custom-made springs.
The stabilization operation consists in fixing the final form of the spring and in giving it its elasticity by the means of a heat treatment specific to each use.

Spring types:

Compression springs
Laid together and ground open ends
Extension springs
Half hook over center, single full loop over center, long round end hook over center, custom made loops
Torsion springs
Loop ends, custom made loops
Flat springs
Cutting, folding, press forming, punching

Wire section and materials used:

We can use round, half-round, square, flattened, flat, rectangular and special profiled metal wire sections:

 

Coil springs
Diameter Ø 0.2 to 18 mm

Flat springs
Thickness 0.2 to 10 mm

Materials used include: stainless spring steel (301 stainless steel, 302 stainless steel, 316 food grade stainless steel) – B1 galvanized spring steel – C1 spring steel – titanium wire – piano wire – beryllium bronze – Inconel …
Hardened steel strip, flat wire, flattened wire, tempered steel strip, stainless steel AISI 301 strain hardened strip …
Other possibilities on demand…

Finishing and painting of metal parts:

We can ensure the finishing and painting of metal parts by our integrated epoxy and rilsan paint line : white zinc plating or zinc flake coating, powder coating, hot-dip galvanizing, chrome, electrolytic polishing, passivation…

Associated services:

  • Grinding
  • Shot peening
  • Design and creation of tools + checking fixtures
  • Unit quality control