Die Springs

Die Springs are used as standardised compression springs for mechanical engineering, for example in presses and similar industrial applications, and comply with ISO and DIN standards.

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Detailed description

  • also known as high-performance compression springs, mould springs, stamp springs, punch springs or system springs
  • Cylindrical design made from profile/square wire
  • Powder-coated as standard
  • divided into 4 different load classes according to colour:
    • Group 1: Green for light loads
    • Group 2: Blue for medium loads
    • Group 3: Red for heavy loads
    • Group 4: Yellow for particularly heavy loads
  • Produced according to ISO standard - larger tolerances apply compared to our stock items and the stock range

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Note:
So that you can enter the dimensions and characteristics of your spring correctly in the form, you will find an overview of the abbreviations used below.

Technical drawing with dimensions

The required dimensions can be found here.

Possible shapes of the spring ends

Mould 1 (left): Ends laid out and ground flat

Mould 2 (right): Ends laid out and unfinished

Spring details
22.09.2025
Options
Material
Surface protection

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Legend

SignUnitNaming
dmmWire gauge
DemmOuter diameter
DmmmMedium winding diameter
DimmInner diameter
DdmmGuide arbour diameter
DhmmDiameter of guide sleeve
L0mmSpring length unloaded
L1mm1st approach length
L2mm2. approach length
LnmmSmallest permissible approach length
Lc theor.mmBlock length theor.
FNSpring force
F1NForce at 1st approach length
F2NForce at 2nd approach length
FnNMaximum spring force
Fc theor.Ntheor. spring force to block length Lctheor.
e1mmDeviation from the lateral line (skew)
e2mmDeviation of the parallelism of the two contact surfaces
nEffective number of turns
nttotal number of turns
mmmGradient
MgMass of the spring
RN/mmSpring rate
smmSpring travel
shmmHub, commute
snmmSpring travel to shortest approach length
scmmSpring travel up to the theoretical block length
s1mmSpring travel to 1st approach length
s2mmSpring travel to 2nd approach length
LkmmBuckling length
skmmSpring travel up to buckling force
FkNBuckling force
SammSum of the minimum clearances between the windings
fe1/sNatural frequency of the spring
GN/mm2Shear modulus
kVoltage coefficient
WN/mmSuspension work
w=D/dWinding ratio
vStorage coefficient
pkg/dm3Density
τN/mm2Shear stress, without consideration of the wire curvature
τcN/mm2Shear stress, assigned to the block length Lc
τkN/mm2Corrected shear stress with consideration of the influence of the wire curvature
τnN/mm2Shear stress, assigned to the spring force Fn
τzulN/mm2Permissible shear stress
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