Associated Spring Raymond 204-848 Die Spring 12 in Blue

Product Description

The ASSOCIATED SPRING RAYMOND 204-848 is a heavy-duty die spring engineered for use in metal stamping dies, punch press tooling, and industrial mold assemblies. Constructed from chromium alloy steel, this spring features a trapezoidal wire cross-section that delivers a higher load capacity relative to its solid height compared to round-wire springs. It has a free length of 12 inches (305 mm) and a hole diameter of 50 mm, accepting a 25 mm rod diameter. The maximum deflection reaches 114 mm, with a spring rate of 220.41 N/mm. The blue color designation indicates the heavy load classification under ISO 10243 standards. Installation and specification compliance are backed by ISO 9001:2008 and ISO/TS 16949:2009 certifications.

This die spring is suited for industrial tooling applications requiring consistent, repeatable force across high-cycle press operations. The 204-848 is commonly installed in stamping dies, forming tools, and injection mold assemblies where controlled spring return force is critical. The blue color classification under ISO 10243 places this spring in the heavy load category, making it appropriate for applications demanding higher force output within a compact axial envelope. Tooling engineers and die maintenance technicians are the primary users of this component in both OEM die builds and tooling repair scenarios.

Key Features

• Trapezoidal wire cross-section provides higher load density compared to round-wire die springs at equivalent free length
• 12 inches (305 mm) free length with 114 mm maximum deflection travel to solid load
• 50 mm hole diameter and 25 mm rod diameter for direct drop-in fit in standard ISO 10243 die sets
• Spring rate of 220.41 N/mm for predictable, linear force delivery across the deflection range
• Chromium alloy steel construction for fatigue resistance in high-cycle tooling environments
• Manufactured to ISO 10243 and produced under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems

Compatibility

Designed as a standard ISO 10243 heavy-load (blue) die spring for use in stamping dies, punch tooling, and mold assemblies requiring a 50 mm hole diameter and 25 mm rod diameter with a 12-inch free length.

Installation Notes

Die springs are installed and serviced by toolroom technicians and die maintenance personnel. Always de-energize and lock out the press before accessing die assemblies. Ensure the pocket bore and rod dimensions match the spring specifications before installation to prevent buckling or uneven loading. Inspect springs for visible fatigue cracking or set at regular maintenance intervals, and replace springs in matched sets when possible to maintain balanced die function.