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Tension Springs

 

Tension springs are produced without winding distance and tested on tension. We produce tension springs of stainless steel and spring steel wire (round wire) on tension spring machines. The design of the spring is exclusively cylindrical. Another distinguishing feature, which can be seen at first glance, is the eye shape.We produce tension springs with the following eyelet designs: german eyelet design, english eyelet design, ….

Tension springs with a wire diameter from 0.50 mm to 1.60 mm are produced on our fully automated machines, whereas our tension springs in semi-automatic production have a diameter of up to 4.50 mm. We manufacture from batch size 1 to large scale.

We use the following materials:

Materials for technical springs made of wire

  • DIN EN 1652 | material no: 2.0065, 2.0060
    • EU-standard:DIN EN 1652
    • DIN-standard:DIN EN 13601
    • title (old):Cu-ETP (E-Cu)
    • material no:2.0065, 2.0060
    • title:CW004A
    • use / remarks:Kupfer copper
  • EN 10270-1 DH | material no: 1.1211
    • EU-standard:EN 10270-1 DH
    • DIN-standard:DIN 17223-1
    • title (old):(Typ / Sorte D)
    • Standard:patented drawn spring steel wire diameter of 0.07 to 20.00 mm
    • material no:1.1211
    • title:High tensile strength (dynamic)
    • use / remarks:Tension and compression springs with high static and medium dynamic stress, as well as with torsion and form springs with high static and high dynamic stress
  • EN 10270-1 SH | material no: 1.1200
    • EU-standard:EN 10270-1 SH
    • DIN-standard:DIN 17223-1
    • title (old):(Typ / Sorte C)
    • Standard:patented drawn spring steel wire diameter from 2.00 to 20.00 mm
    • material no:1.1200
    • title:High tensile strength
    • use / remarks:Tension, torsion and form springs with high static and low dynamic stress
  • EN 10270-1 SL | material no: 1.0500
    • EU-standard:EN 10270-1 SL
    • DIN-standard:DIN 17223-1
    • title (old):(Typ / Sorte A) (type A)
    • Standard:patented drawn spring steel wire diameter from 1.00 to 10.00 mm
    • material no:1.0500
    • title:Low tensile strength
    • use / remarks:Tension, torsion and form springs with low static or rarely dynamic stress
  • EN 10270-1 SM | material no: 1.0600
    • EU-standard:EN 10270-1 SM
    • DIN-standard:DIN 17223-1
    • title (old):(Typ / Sorte B) / (type B)
    • Standard:patented drawn spring steel wire from 0.30 to 20.00 mm
    • material no:1.0600
    • title:Average tensile strength
    • use / remarks:Tension, torsion and form springs with medium static and low dynamic stress
  • EN 10270-2 FDC | material no: 1.1230
    • EU-standard:EN 10270-2 FDC
    • DIN-standard:DIN 17223-2 FD
    • Standard:Hardened spring steel wire unalloyed diameter from 0.50 to 10.00 mm
    • material no:1.1230
    • use / remarks:Static load
  • EN 10270-2 FDCrV | material no:
    • EU-standard:EN 10270-2 FDCrV
    • DIN-standard:DIN 17223-2 FDCrV
    • Standard:Hardened spring steel wire alloy diameter from 0.50 to 10.00 mm
    • use / remarks:static load
  • EN 10270-2 FDSiCr | material no:
    • EU-standard:EN 10270-2 FDSiCr
    • DIN-standard:DIN 17223-2 FDSiCr
    • Standard:Hardened spring steel wire alloy diameter from 0.50 to 10.00 mm
    • use / remarks:Static load
  • EN 10270-2 VDC | material no: 1.1250
    • EU-standard:EN 10270-2 VDC
    • DIN-standard:DIN 17223-2 VD
    • Standard:hardened valve spring wire unalloyed from 0.50 to 17.00 mm
    • material no:1.1250
    • use / remarks:high dynamic torsion load at room temperature
  • EN 10270-2 VDSiCr | material no:
    • EU-standard:EN 10270-2 VDSiCr
    • DIN-standard:DIN 17223-2 VDSiCr
    • Standard:hardened valve spring wire alloyed diameter from 0.50 to 17.00 mm
    • use / remarks:very high dynamic torsion load up to 100°C operating temperature
  • EN 10270-3-1.4301 | material no: 1.4301
    • EU-standard:EN 10270-3-1.4301
    • Standard:stainless spring steel wire
    • material no:1.4301
    • title:X5CrNi18-8
  • EN 10270-3-1.4310 | material no: 1.4310
    • EU-standard:EN 10270-3-1.4310
    • DIN-standard:DIN 17224 1.4310
    • Standard:stainless spring steel wire
    • material no:1.4310
    • title:X10CrNi18-8 (X12CrNi17-7)
  • EN 10270-3-1.4401 | material no: 1.4401
    • EU-standard:EN 10270-3-1.4401
    • DIN-standard:DIN 17224 1.4401
    • Standard:stainless spring steel wire
    • material no:1.4401
    • title:X5CrNiMo17-12-2
  • EN 10270-3-1.4568 | material no: 1.4568
    • EU-standard:EN 10270-3-1.4568
    • DIN-standard:DIN 17224 1.4568
    • Standard:stainless spring steel wire
    • material no:1.4568
    • title:X7CrNiAl17-7
  • EN 10270-3-1.4571 | material no: 1.4571
    • EU-standard:EN 10270-3-1.4571
    • Standard:stainless spring steel wire
    • material no:1.4571
    • title:X6CrNiMoTi17-12-2
  • EN 1652 / 1654 CuSn6 | material no: 2.1020.39
    • EU-standard:EN 1652 / 1654 CuSn6
    • DIN-standard:DIN EN 12166 2.1020.39
    • Standard:Welding wires made of copper wrought alloys
    • material no:2.1020.39
    • title:CuSn 6
    • use / remarks:Brass
  • EN 1652 / 1654 CuBe2 | material no: 2.1247.97
    • EU-standard:EN 1652 / 1654 CuBe2
    • DIN-standard:DIN EN 12166 2.1247.97
    • Standard:Welding wires made of copper wrought alloys
    • material no:2.1247.97
    • title:CuBe2 / EN CW101 C
    • use / remarks:Beryllium copper
  • EN 1652 / 1654 CuZn36 | material no: 2.0335.39
    • EU-standard:EN 1652 / 1654 CuZn36
    • DIN-standard:DIN EN 12166 2.0335.39
    • Standard:Welding wires made of copper wrought alloys
    • material no:2.0335.39
    • title:CuZn36
    • use / remarks:Tin bronze

Special materials for technical springs made of strip material

Due to construction further processing is limited. We can apply sandblasting and electroplating to a certain extent.

Tension springs can be used and applied in a variety of branches:

  • Automobile industry
  • Automobile supplier industry
  • Construction industry
  • Chemical industry
  • Electronic industry
  • Household appliance industry
  • IT
  • Plastic industry
  • Aviation
  • Furniture industry
  • Fittings
  • Mechanical engineering
  • Plant construction
  • Measurement technology / control technology
  • Environmental engineering
  • Textile industry