Die Springs

Davies Springs can supply your die spring requirements - we offer the full range from light green to black.

If you are not aware die springs are colour coded to show their characteristics - not to look colourful! Our die springs are coated using electrophoretic deposition (EPD)  which provides 100% coverage. Coating thickness 10 < 30 um. This makes the springs highly resistant to corrosion and chips.  

When enquiring the questions we will ask are which: -

  • Rod
  • Hole
  • Free Length
  • Force
  • Colour

Choose from rectangular or round wire. Orders from 1 to 1000 welcome. 



extra light duty die springs

Extra Light Duty



Extra Light Duty Die Springs

Extra light duty die springs are light green and have a variety of uses beyond dies. These are heavy duty compression springs. For a list of our extra light duty die springs...



light duty die springs

Light Duty



Light Duty Die Springs

Extra light duty die springs are light green and have a variety of uses beyond dies. These are heavy duty compression springs. For a list of our light duty die springs...



medium duty die springs

Medium Load



Medium Load Die Springs

Extra light duty die springs are light green and have a variety of uses beyond dies. These are heavy duty compression springs. For a list of our medium load die springs...



strong die springs

Strong



Strong Die Springs

Extra light duty die springs are light green and have a variety of uses beyond dies. These are heavy duty compression springs. For a list of our strong die springs...



extra strong die springs

Extra Strong



Extra Strong Die Springs

Extra light duty die springs are light green and have a variety of uses beyond dies. These are heavy duty compression springs. For a list of our extra strong die springs...


10 Tips For Die Spring Success

  1. Consider the spring design options at an early stage.
  2. Ensure to work within the physical limits of the springs before the die is built
  3. Preload each spring when assembling to avoid shock loading, to avoid spring failure.
  4. Do not overlook possible damage from, heat, corrosion, metal chips.
  5. Consider if buckling maybe a problem
  6. Ensure the spring is kept square.
  7. Preventative maintenance should be scheduled.
  8. Replace all spring units at the same time.
  9. If a die spring does fit – avoid modifying but instead get a correct size replacement.
  10. Do not over stress / overload this will reduce the springs life considerably.

For help and guidance contact Davies Springs at an early stage.

Q. Why are the springs coloured: A: If they have to be replaced - it is easier to know what to replace the old ones with.

Die Springs

Die Spring Definitions

Hole Diameter: The OD = Outside Diameter

Rod Diameter: Springs are made to fit over the rod

Free Length: Length of Die Spring before any load

Preload: = Free Length of the Die Spring reduced by the assembled tool.

Operating Travel: = The distance from the spring length after the operating force was applied.

Deflection: = Change in spring length when force is applied.

Compressed Length: = Computed by subtracting the initial compression operating travel from the free length.

Solid Height: = Height when all the coils are compressed.

Remove Set: = Manufacturing process of closing a compression spring to solid to eliminate load loss in operation.

Permanent Set: = When the spring has load limit has been exceeded.

Elastic Limit: = Maximum compression stress that a die spring can endure without taking permanent set.

Load: = The force built up by compressing the spring.

Stress: = The internal force that resits defection under load.

For quality die springs which you can depend upon for consistency and a long spring life please call Davies Springs tel: 01527 500 710 for a quote

ISO Standard - 10243:2010 - All our die springs meet the highest standards

Choose from:-

  • European ISO
  • JIS - the Japanese Standard,
  • Oval - USA.
All our die springs are shot peened. This greatly enhances the strength of the spring and extends its service life.