Associated Spring Raymond 204-616 Die Spring 4 in Blue

Product Description

The ASSOCIATED SPRING RAYMOND 204-616 is a heavy-duty die spring engineered for use in metal stamping dies, punch presses, and mold assemblies. It features a trapezoidal wire cross-section that delivers higher load capacity per unit length compared to round-wire springs, making it well-suited for demanding cyclic compression applications. With a free length of 4 inches (102 mm), a rod diameter of 16 mm, and a hole diameter of 32 mm, this blue-coded spring falls within the medium-load color classification. The chromium alloy steel construction provides strong fatigue resistance and dimensional stability under repeated deflection. It is typically installed and specified by tool-and-die makers, mold builders, and precision machine technicians.

This die spring is designed for industrial tooling environments where consistent spring force and long service life are critical. The blue color coding identifies it as a medium-load spring under the ISO 10243 standard, which governs die spring specifications used across stamping, forming, and injection mold tooling worldwide. It fits standard die sets with a 32 mm hole diameter and accepts a 16 mm guide rod. Maximum deflection is 38 mm with a maximum deflection load of 2234.40 N and a spring rate of 335.76 N/mm. This makes it a direct-specification part for toolrooms operating to ISO or equivalent die spring standards.

Key Features

• Trapezoidal wire shape delivers higher load density than round-wire die springs of the same envelope size
• Blue color coding indicates medium load per ISO 10243 die spring classification
• Chromium alloy steel construction for fatigue resistance under high-cycle compression
• Free length of 4 inches (102 mm) with 38 mm maximum deflection travel to solid
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 quality management systems
• TUV Rheinland registered and ANAB accredited production

Compatibility

Designed as a direct-specification die spring for standard tooling applications requiring a 32 mm hole diameter, 16 mm guide rod, and 4-inch free length per ISO 10243 medium-load (blue) classification.

Installation Notes

Die springs are installed by tool-and-die technicians and mold builders. Ensure all press or mold energy is fully released and the tooling is locked out before removing or installing springs. Guide rods and holes should be checked for burrs or wear that could cause side-loading, which reduces spring fatigue life. Do not compress this spring beyond its rated maximum deflection of 38 mm.