Extension springs

Tension springs enable optimum force storage and release, which are actuated via the eyelets at the ends. We supply customised tension springs according to your requirements such as installation space, force, dynamic behaviour and influences such as corrosion protection, temperature resistance and other factors. Our company supports you in the design of the tension springs in consideration of service life, optimum properties and economical manufacture.

Manufacturing programme:
– From 0.10mm to 9mm wire diameter

Series size:
– From quantity of 1pc to 1 million pcs.

– Patented drawn spring steel wire according to EN 10270-1
– Oil tempered spring steel wire according to EN 10270-2
– Stainless steel according to EN 10270-3
– Non-ferrous metals (copper and copper alloys) according to EN 12166
– High temperature superalloys (Nimonic, Inconel) UNS N07090 /
1UNS N07718
– Gold/platinum alloys
– Customised alloys

End finishes:
– German (half, whole, double)
– English (half, whole, double)
– Hook eye
– Rolled hook eye
– Screw eye
– Screw eye

Special treatments:
– Shot peened
– Quenched and tempered (hardening and tempering)
– Austempered
– Coated