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Tim Reiber

tim.reiber@reiber.de

Managing Director

Andreas Geßner

andreas.gessner@reiber.de

Authorized Officer
Commercial Manager

Oliver Schmidl

oliver.schmidl@reiber.de

Technical management

Alexander Michalke

alexander.michalke@reiber.de

Order processing

Armin Schmidt

armin.schmidt@reiber.de

Quality control

Leaf springs, Flat springs, Shaped springs

Leaf, flat and shaped springs are versatile construction elements due to their functionality. They absorb vibrations in vehicles, serve as contacts in electronic devices or as retaining springs in household appliances.

We process spring steel strip from 0.1 to 1.0 mm thickness.

Since leaf, flat and shaped springs can have various forms, our small-volume production bases on your requirements, CAD data, drawings or samples.

We build prototypes prior to serial production on request. Our machinery allows us to produce for a multitude of applications.

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Technical details

Material

  • Spring steel strip
  • Material widths: 10 to 100 mm
  • Material thicknesses: 0.1 to 1 mm

Quantities

  • Sample and one-off production, small series
  • Production: according to specifications, drawings, samples

Surface treatment

  • vibratory grinding
  • shot peening
  • Phosphating
  • Burnishing
  • Galvanizing
  • Painting
  • Others on request

Additional procedures

  • Spot welding

Production processes

Our materials are carefully selected to ensure maximum durability, elasticity and corrosion resistance.

Coiling

The spring wire is wound through a cold coiling process. It is pushed forward to coiling pins, which, in accordance with their settings and positions, define the spring's outer diameter. Meanwhile the pitch (distance between successive coils) is formed by the pitch wedge, a guiding mechanism. Finally, the wire is cut in the predefined length.

Heat treatment

Coiling creates stress within the material. To relieve this stress and allow the steel to maintain its characteristic resilience, springs must be tempered by heat treatment. Depending on spring shape and material we use different ovens to achieve the best possible product quality.

Setting

When material is subjected to stress above its elastic limit, the spring can be deformed plastically without getting back to the initial length after being released. This leads to a decrease in strength. To permanently fix the desired length and pitch of the spring, it is compressed over a defined period of time. This helps to avoid loss of length and strength when the spring is exposed to stress above its elastic limit in later operation.

Grinding

Compression spring ends must be on axis with adjacent parts to ensure optimum power transmission. Ground ends and closed coils as ends (i.e. reduced end coils' pitch) provide greater contact area in right angle to spring axis.

We use different grinding machines for varying spring shapes and wire diameters.

Shot peening

This surface treatment strengthens springs, especially dynamically stressed compression springs, to resist metal fatigue and cracking in order to significantly extend lifetime. To achieve an extra high surface finish, we use different shot peening facilities. They not only compress the steel but also deburr compression springs.

Do you have any questions or would you like to learn more about our products?

Our team is happy to assist you with a non-binding consultation.

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