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Die Spring | Heavy load | 32.0×254.0mm | ISO 10243
Part No.: AXS-DI-10287
Image for illustration purposes only
Dimensions
Die springs (DIN & ISO) are arranged in groups according to diameter. Springs with the same mounting dimensions can be selected across different load classes, which increases the durability of stamping, bending and other dies. Each group is arranged by a colour code system in order of increasing load.
Materials & Heat Resistance
Chromium alloys for highly dynamic applications at high temperatures. Original Raymond® die springs use high-quality chrome-vanadium steel according to ISO 10243. Maximum operating temperature is 240°C — the identification colour remains intact at these temperatures. At average material strengths of ~600 N/mm², the force loss at this temperature is approximately 10%.
Maximum Force
Die springs are designed for situations where considerable loads are applied in a very confined space, particularly in the case of press dies. The use of chrome alloys permits maximum loads to be combined with a long service life.
Raymond® and ISO Die Springs
Both types of die spring are produced by Raymond® to the highest quality standard. ISO springs with the designation 0R... were defined by the ISO standardization organization and are intended for use with stamping and forming dies. Many dimensions of the two series are identical in terms of external measurements; however, the series use different colour coding systems. Note that ISO sets wide tolerances — edge rounding and profile cross-sections can vary significantly, affecting solid lengths. Raymond® products traditionally deliver demonstrably long service life due to consistently high quality.
Colour Code Differences
Colour codes differ between Raymond® and ISO 10243:
| Load class | Raymond® | ISO 10243 |
|---|---|---|
| Light | Blue | Green |
| Medium | Red | Blue |
| Heavy | Bronze | Red |
| Extra heavy | Green | Yellow |
ISO 10243 — Compression Guidelines
The solid length (Ln) is where maximum forces are achieved. For frequencies greater than 1000 strokes/minute, the following maximum compressions apply for springs with the designation 0R...:
🟢 Green: 25–30% compression 🔵 Blue: 20–25% compression 🔴 Red: 15–20% compression 🟡 Yellow: max. 15% compression
Springs with the designation 0ST... use a different colour system: Medium load = Blue, Medium-heavy load = Red, Heavy load = Bronze, Extra heavy load = Green.