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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

Torsion springs

Precisely tailored to your requirements – for maximum efficiency and reliability.

Torsion and torsion springs: Perfectly matched for versatile applications

Wherever torsional or rotational force is needed, torsion springs can be applied. Torsion springs are part of levers, fulcrums, switches and hinges and thus play an important role in mechanical and engineering and plant construction, automotive and electronics industry as well as numerous consumer goods.

Basically, torsion springs are helical shaped with ends that rotate in angular deflection. Each end is attached to other components, and when the components rotate around the spring's center point, the spring will try to push them back to their original position.

Depending on the application, we wind single torsion springs to work in either a clockwise or counter-clockwise rotation as well as double torsion springs with one coil wound clockwise and another coil wound counter-clockwise. We configure leg shape and position to achieve optimum force transmission for your unique application.

We set the properties of the springs to their optimum values with deburring, defined heat treatment and comprehensive tests to ensure compliance with tolerances and test specifications required by you.

We configure torsion springs as regards material, inner and outer diameter, leg style and leg orientation after individual calculation. Please contact us!

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Technical details

Our torsion springs meet quality grades 1 and 2 in accordance with DIN 2094

Material

  • Patented drawn (EN 10270-1), oil tempered (EN 10270-2), stainless spring steel wire (EN 10270-3)
  • Wire thicknesses: 0.8 mm to 5.0 mm

Further information on our materials

Winding distance

  • Without
  • Constant
  • Variable

Winding direction

  • Right
  • Left-hand
  • Double leg springs with right-left coil

Shank shape

  • Single and double leg spring
  • Applied
  • Applied and ground
  • Open end

Thigh position

  • Straight tangential
  • Radial
  • Axial
  • Parallel axis
  • Single or multiple bends

Surface treatment

  • Galvanizing
  • Delta Tone / Delta Seal
  • Others on request

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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