Extension springs
Types:
German hooks
English hooks
Double German hook
Aside hook
Raw materials:
Range of wire springs: from ø 0.2mm to ø 4mm
Steel for springs – Norm EN10270-1 Classes: SM- SH- DM – DH (also prezinked or Bezinal coated)
Pre-tempered steel for spring- Norm EN 10270-2 Classes: FD – TD –VD – FDCrV – TDCrV –VDCrV – FDSiCr – TDSiCr – VDSiCr
Stainless steel for spring- Norm EN 10270-3 Classes: X10CrNi18-8 (1.4310) – X5CrNiMo17-12-2 (1.4401) – X7CrNiAl17-7 (1.4568)- Norm AISI Classes: 302 – 304 -316 -631
Surface coatings:
Phosphating
Zink plating white
Zink plating black
Chromiting
Geomet
Geoblack
Deltatone
Painting
Cataphoresis
Blackening
Nichel plating
Chrome plating
Gold plating
Any type of spring can be submitted to process of setting, shoot peening, tumbling, washing, oiling upon customer request.
Examples of applications
