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What is the difference between Raymond and ISO Die Springs and what are their colour codes?

  • Both types of indicated die springs are produced by Associated Spring Raymond with the highest quality standard
  • The ISO springs with the designation 0R... were defined subsequently by the ISO standardization organization and are intended for use with stamping and forming dies
  • Many dimensions of the two series of springs are absolutely identical in terms of external measurements; however, the series have different color coding systems
  • It should be kept in mind that the ISO has set such large tolerances that e.g. the rounding of the edges and the profile cross-sections can exhibit great variation with the resulting solid lengths
  • Our products traditionally have a demonstrably long service life, which is due to very good quality.


Colour code differences die springs

                                         Raymond                 ISO-10243

  • Leicht/light                        Blau/blue                        Grün/green
    Mittel/medium                   Rot/red                           Blau/blue
    Schwer/heavy                   Gelb/yellow                    Rot/red
    Extra Schwer/extra heavy Grün/green                 Gelb/yellow 

Additionally, we offer die springs according to the Japanese Industrial Standard JIS.