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Compression Springs - Galvanized Spring Steel

Technical drawing - Compression spring - Range ABC
Range C. This Range is a small run we have designed ourselves. These are the only compression springs we stock in galvanised spring steel.

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.

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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)

10 Items

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
Zinc Plated 0.80 10.00 8.40 50.00 16.30 33.70 13.80 0.41 C 512 512
Zinc Plated 0.90 9.00 7.20 25.00 16.09 8.91 8.62 0.97 C 513 513
Zinc Plated 1.00 16.00 14.00 75.00 16.37 58.63 17.70 0.30 C 520 520
Zinc Plated 1.25 14.00 11.50 75.00 27.62 47.38 35.53 0.75 C 515 515
Zinc Plated 1.50 12.00 9.00 22.00 11.80 10.20 90.87 8.91 C 514 514
Zinc Plated 1.50 14.50 11.50 17.00 7.55 9.45 88.76 9.39 C 511 511
Zinc Plated 1.70 14.70 11.30 27.00 14.51 12.49 87.98 7.04 C 518 518
Zinc Plated 2.00 16.00 12.00 80.00 34.51 45.49 207.86 4.57 C 517 517
Zinc Plated 2.00 20.00 16.00 85.00 36.98 48.02 99.42 2.07 C 519 519
Zinc Plated 2.50 17.30 12.30 20.00 12.92 7.08 315.87 44.64 C 516 516
  1. 512
    In stock: 558
    512
    Material Zinc Plated
    d - Wire diameter (mm) 0.80
    De - External diameter (mm) 10.00
    Di - Internal diameter (mm) 8.40
    L0 - Unloaded length (mm) 50.00
    Ln - Max. loaded length (mm) 16.30
    Sn - Maximum travel (mm) 33.70
    Fn - Maximum load at Ln (N) 13.80
    R - Spring constant (N/mm) 0.41
    Range C
  2. 513
    In stock: 1,034
    513
    Material Zinc Plated
    d - Wire diameter (mm) 0.90
    De - External diameter (mm) 9.00
    Di - Internal diameter (mm) 7.20
    L0 - Unloaded length (mm) 25.00
    Ln - Max. loaded length (mm) 16.09
    Sn - Maximum travel (mm) 8.91
    Fn - Maximum load at Ln (N) 8.62
    R - Spring constant (N/mm) 0.97
    Range C
  3. 520
    In stock: 1,523
    520
    Material Zinc Plated
    d - Wire diameter (mm) 1.00
    De - External diameter (mm) 16.00
    Di - Internal diameter (mm) 14.00
    L0 - Unloaded length (mm) 75.00
    Ln - Max. loaded length (mm) 16.37
    Sn - Maximum travel (mm) 58.63
    Fn - Maximum load at Ln (N) 17.70
    R - Spring constant (N/mm) 0.30
    Range C
  4. 515
    In stock: 2,496
    515
    Material Zinc Plated
    d - Wire diameter (mm) 1.25
    De - External diameter (mm) 14.00
    Di - Internal diameter (mm) 11.50
    L0 - Unloaded length (mm) 75.00
    Ln - Max. loaded length (mm) 27.62
    Sn - Maximum travel (mm) 47.38
    Fn - Maximum load at Ln (N) 35.53
    R - Spring constant (N/mm) 0.75
    Range C
  5. 514
    In stock: 2,696
    514
    Material Zinc Plated
    d - Wire diameter (mm) 1.50
    De - External diameter (mm) 12.00
    Di - Internal diameter (mm) 9.00
    L0 - Unloaded length (mm) 22.00
    Ln - Max. loaded length (mm) 11.80
    Sn - Maximum travel (mm) 10.20
    Fn - Maximum load at Ln (N) 90.87
    R - Spring constant (N/mm) 8.91
    Range C
  6. 511
    In stock: 3,126
    511
    Material Zinc Plated
    d - Wire diameter (mm) 1.50
    De - External diameter (mm) 14.50
    Di - Internal diameter (mm) 11.50
    L0 - Unloaded length (mm) 17.00
    Ln - Max. loaded length (mm) 7.55
    Sn - Maximum travel (mm) 9.45
    Fn - Maximum load at Ln (N) 88.76
    R - Spring constant (N/mm) 9.39
    Range C
  7. 518
    In stock: 1,003
    518
    Material Zinc Plated
    d - Wire diameter (mm) 1.70
    De - External diameter (mm) 14.70
    Di - Internal diameter (mm) 11.30
    L0 - Unloaded length (mm) 27.00
    Ln - Max. loaded length (mm) 14.51
    Sn - Maximum travel (mm) 12.49
    Fn - Maximum load at Ln (N) 87.98
    R - Spring constant (N/mm) 7.04
    Range C
  8. 517
    In stock: 505
    517
    Material Zinc Plated
    d - Wire diameter (mm) 2.00
    De - External diameter (mm) 16.00
    Di - Internal diameter (mm) 12.00
    L0 - Unloaded length (mm) 80.00
    Ln - Max. loaded length (mm) 34.51
    Sn - Maximum travel (mm) 45.49
    Fn - Maximum load at Ln (N) 207.86
    R - Spring constant (N/mm) 4.57
    Range C
  9. 519
    In stock: 491
    519
    Material Zinc Plated
    d - Wire diameter (mm) 2.00
    De - External diameter (mm) 20.00
    Di - Internal diameter (mm) 16.00
    L0 - Unloaded length (mm) 85.00
    Ln - Max. loaded length (mm) 36.98
    Sn - Maximum travel (mm) 48.02
    Fn - Maximum load at Ln (N) 99.42
    R - Spring constant (N/mm) 2.07
    Range C
  10. 516
    In stock: 3,061
    516
    Material Zinc Plated
    d - Wire diameter (mm) 2.50
    De - External diameter (mm) 17.30
    Di - Internal diameter (mm) 12.30
    L0 - Unloaded length (mm) 20.00
    Ln - Max. loaded length (mm) 12.92
    Sn - Maximum travel (mm) 7.08
    Fn - Maximum load at Ln (N) 315.87
    R - Spring constant (N/mm) 44.64
    Range C
per page
Material

DIN 17223 C-Wire WERKSTOFF NO. 1.200
Working temperature between -30 ºC and +120 ºC

Galvanization

The galvanised range is manufactured of electro-galvanised music wire. Electro-galvanisation means that the spring gets a blank and more corrosion resistant surface.

Terminology
Technical information - compression springs
d
=
Wire diameter in mm
De
=
External diameter (D+d)
Dm
=
Mean diameter in mm (De minus d)
Di
=
Internal diameter in mm (De minus 2xd)
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 stainless steel spring steel is approx. 0.88 x Fn for music wire.

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

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

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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