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Compression Springs | Produced In Spring Steel

Tech Drawing - Compression springs in piano wire, electrogalvanised wire and stainless steel wire

Range A&B. Compression springs are used in a large number of structures where compressed force is required.

Find the correct dimensions by using the filters underneath. Open the filters by clicking the downward arrow.
If you know the stock-number, please write it in the search box at the top of the page.

See quantity discount by clicking on the green basket next to the item.
We can deliver within 24 hours, if you order before 15:45 from Monday till Thursday and before 14:30 on Fridays, if the item is in stock. Orders placed Saturday and Sunday are being shipped the following Monday.

About the spring
The force acumilates through the spring being compressed, and the force is released again when the spring is allowed to return to its original length. A compression spring is basically an ingenious low-tech component that can accumulate force and operate at optimal levels for a very long time, provided it is used and dimensioned correctly. Here you have a large selection of different sizes. Most ready for quick delivery!

 

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Shop By
Shopping Options
d - Wire diameter (mm)
De - External diameter (mm)
Di - Internal diameter (mm)
L0 - Unloaded length (mm)
Ln - Max. loaded length (mm)
Sn - Maximum travel (mm)
Fn - Maximum load at Ln (N)
R - Spring constant (N/mm)
Range

Items 1-10 of 2642

Set Descending Direction
View prices - Add to Cart Material d
Wire diameter (mm)		 De
External diameter (mm)		 Di
Internal diameter (mm)		 L0
Unloaded length (mm)		 Ln
Max. loaded length (mm)		 Sn
Maximum travel (mm)		 Fn
Maximum load at Ln (N)		 R
Spring constant (N/mm)		 Range SKU Stock Tech Drawing Read More 3D CAD
Music wire 0.15 1.45 1.15 3.05 1.55 1.50 1.02 0.67 B C00570060120M C00570060120M
Music wire 0.15 1.45 1.15 4.83 2.29 2.54 1.02 0.39 B C00570060190M C00570060190M
Music wire 0.15 1.45 1.15 6.35 2.90 3.45 1.02 0.28 B C00570060250M C00570060250M
Music wire 0.15 1.45 1.15 7.87 3.51 4.36 1.02 0.23 B C00570060310M C00570060310M
Music wire 0.15 1.45 1.15 9.65 4.24 5.41 1.02 0.19 B C00570060380M C00570060380M
Music wire 0.15 1.45 1.15 11.18 4.90 6.28 1.02 0.16 B C00570060440M C00570060440M
Music wire 0.15 1.45 1.15 12.70 5.54 7.16 1.02 0.14 B C00570060500M C00570060500M
Music wire 0.15 1.45 1.15 14.22 6.58 7.64 1.02 0.14 B C00570060560M C00570060560M
Music wire 0.15 1.45 1.15 15.75 7.26 8.49 1.02 0.12 B C00570060620M C00570060620M
Music wire 0.18 1.45 1.09 3.05 1.70 1.35 1.69 1.23 B C00570070120M C00570070120M
  1. C00570060120M
    In stock: 784
    C00570060120M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 3.05
    Ln - Max. loaded length (mm) 1.55
    Sn - Maximum travel (mm) 1.50
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.67
    Range B
  2. C00570060190M
    In stock: 228
    C00570060190M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 4.83
    Ln - Max. loaded length (mm) 2.29
    Sn - Maximum travel (mm) 2.54
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.39
    Range B
  3. C00570060250M
    In stock: 163
    C00570060250M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 6.35
    Ln - Max. loaded length (mm) 2.90
    Sn - Maximum travel (mm) 3.45
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.28
    Range B
  4. C00570060310M
    In stock: 8,171
    C00570060310M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 7.87
    Ln - Max. loaded length (mm) 3.51
    Sn - Maximum travel (mm) 4.36
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.23
    Range B
  5. C00570060380M
    In stock: 555
    C00570060380M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 9.65
    Ln - Max. loaded length (mm) 4.24
    Sn - Maximum travel (mm) 5.41
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.19
    Range B
  6. C00570060440M
    In stock: 218
    C00570060440M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 11.18
    Ln - Max. loaded length (mm) 4.90
    Sn - Maximum travel (mm) 6.28
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.16
    Range B
  7. C00570060500M
    In stock: 385
    C00570060500M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 12.70
    Ln - Max. loaded length (mm) 5.54
    Sn - Maximum travel (mm) 7.16
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.14
    Range B
  8. C00570060560M
    In stock: 110
    C00570060560M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 14.22
    Ln - Max. loaded length (mm) 6.58
    Sn - Maximum travel (mm) 7.64
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.14
    Range B
  9. C00570060620M
    In stock: 266
    C00570060620M
    Material Music wire
    d - Wire diameter (mm) 0.15
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.15
    L0 - Unloaded length (mm) 15.75
    Ln - Max. loaded length (mm) 7.26
    Sn - Maximum travel (mm) 8.49
    Fn - Maximum load at Ln (N) 1.02
    R - Spring constant (N/mm) 0.12
    Range B
  10. C00570070120M
    In stock: 221
    C00570070120M
    Material Music wire
    d - Wire diameter (mm) 0.18
    De - External diameter (mm) 1.45
    Di - Internal diameter (mm) 1.09
    L0 - Unloaded length (mm) 3.05
    Ln - Max. loaded length (mm) 1.70
    Sn - Maximum travel (mm) 1.35
    Fn - Maximum load at Ln (N) 1.69
    R - Spring constant (N/mm) 1.23
    Range B
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Material

DIN 17223 C-Wire WERKSTOFF NO. 1200
Working temperature between -30 ºC and +120 ºC

Produced in spring steel for use in dry environment.
The spring steel is not rust-resistant. If needed for use in humid/wet environment, choose from our collection of models in stainless steel here.

Tolerances

Range A: (The A Range consists of springs with 5 digits, ie: "12200")

IN 2098 defines the spring's dimensions based on wire thickness. Contact Sodemann Industrial Springs for further information.

DIN 2095 defines the force as the determining parameter. The number of coils may therefore vary. L0 is for guidance only and may well be longer than stated in the tables. Deviations are usually observed in a large coil ratio (Dm/d), where the spring has a thin wire in relation to the diameter. Once loaded the spring will set itself and thus achieve the correct force at the correct travel. Contact Sodemann Industrifjedre A/S for further information.

Range B: (The B Range consists of springs with 11 digits and 2 letters, ie: "C07200853000M")

On this range, the number of coils is not shown, because the spring is produced after the force as the primary measurement. Therefore the variation in wire size, through tolerance or availability, will always have an effect on the number of coils.

Terminology
Tech Drawing - Compression springs in piano wire, electrogalvanised wire and stainless steel wire
d
=
Wire diameter in mm
De
=
External diameter (Di + (d*2))
Dm
=
Mean diameter in mm (De - d)
Di
=
Internal diameter in mm (De - (d*2))
n
=
Number of effective elastic coils
nt
=
Coils total (n+2)
L0
=
Free unloaded length. Lo is for guidance only. Lo can vary slightly.
L1
=
Loaded length in mm at F1
L2
=
Loaded length in mm at F2
Ln
=
Max. loaded length in mm (min. length/max. load)
F1
=
Partial load in N (Newtons) at L1
F2
=
Additional load in N (Newtons) at L2
Fn
=
Maximum load in N (Newtons) at Ln (should not be used)
sn
=
Maximum travel (compression) in mm (Lo-Ln) (should not be used)
R
=
Spring constant in N/mm
Dd
=
Arbor diameter over which the spring can work
Dh
=
Hole diameter in which the spring can work
1 N
=
0,10197 Kg
1 Kg
=
9,80665 N
Calculation of spring force

Fn for spring steel (music wire) is approx 12% stronger than Fn for the exact same model in stainless steel.

Calculation of spring force at a given length is travel s * R

For example:
A spring is compressed 16 mm and the spring constant is 3 N (16 mm * 3 N = 48 N)
A spring that travels 16 mm thus produces 48 N, which equates to approx. 4.8 kg.

If compression springs with a very high spring constant/carrying capacity are required, coloured die springs are recommended.

Configuration of ends

Range A: Wire up to and including 0.8 mm is closed, but unground. Wire from 1.0 mm is closed and ground.

Winding direction

Normally right-handed

Misc.

If the springs are compressed to Ln, the spring will set itself. It will then not return to its original length, L0.

Always dimension a spring so that it delivers the desired travel and force with as little exertion as possible. This prolongs the service life of the spring. Applying maximum load to the spring will shorten its service life and cause it to become permanently distorted.

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