Tension springs from RAICO

Properties of tension springs

Tension springs absorb energy when they are pulled apart, which is discharged when the tension is released.

Tension springs are produced with a wire diameter from 0.2 – 4.0 mm. From sample springs and individual springs in a pilot series to serial production with several million units per spring and year, we offer a wide range of different springs in our portfolio.

We are pleased to produce special solutions for our customers. These tension springs are specially adapted to the requirements of our customers.

Special features of RAICO tension springs.

  • We calculate and test the fatigue strength based on requirements (continuous running test).
  • If necessary, we carry out integrated 100% force tests.
  • With the help of laser technology, we monitor eyelet positions, eyelet placements and lengths.
  • We produce tension springs as well as double tension springs.

Areas of use of tension springs

Tension springs play an important role in almost every industrial area. For example, they are used as return springs in drum brakes in the automotive sector. The especially high quality and precision of RAICO springs guarantee smooth mechanical interaction and maximum reliability to our customers around the world.

Other areas of use

  • Automotive
  • Renewable energy
  • Electric motors
  • Control technology/ Switching elements
  • Measurement technology
  • Aerospace technology
  • Mechanical engineering
  • Medical technology

Are you looking for the tension springs in small or large series?
Let us provide you with an individual offer.

Contact us now

Production of tension springs

The latest CNC, winding, coiling and bending machines are used for the production of tension springs. Moreover, our services also include surface treatment. The careful processing of surfaces means our tension springs can be used in many different ways. Our logistics expertise and our individual packaging concepts round off our range of services.

Sizes and features of tension springs

  • Wire diameter 0.2 – 4.0 mm
  • Different eyelet shapes according to DIN EN 13906-2 (replaces DIN 2097):
    • German eyelet (half, whole, double, inclined)
    • English eyelet
    • Hook eyelet
    • Rolled hook
    • Threaded part
    • Screwed in screw tab
    • Individual eyelet shapes
    • hifo(R) hooks
  • Wire cross-section, round (others on request)
  • Eyelet position freely selectable within tolerance ranges

Would you like to know which manufacturing processes and production procedures we use when producing precision springs?

Contact us

Klaus Mann

T +49 9253 80-8310