Associated Spring Raymond 204-305 Die Spring 1-1/4 in Blue

Product Description

The ASSOCIATED SPRING RAYMOND 204-305 is a heavy-duty die spring designed for use in stamping dies, molds, and tooling fixtures where consistent, repeatable force is required. Built from chromium alloy steel with a trapezoidal wire cross-section, this spring delivers a spring rate of 211.85 N/mm and a maximum deflection load of 452.60 N over a maximum deflection of 12.20 mm. The blue color coding indicates its load classification within the ISO 10243 standard series. It is installed by tool and die makers, mold builders, and maintenance technicians working on press tooling and injection mold assemblies.

This die spring is suited for industrial tooling applications in both light manufacturing and heavy stamping environments. The 1-1/4 inch (32.00 mm) free length and 8.00 mm rod diameter make it a compact option for confined die cavities. The 16.00 mm hole diameter allows straightforward installation over standard guide rods. Typical applications include stripper plate actuation, knockout mechanisms, and component ejection systems in stamping and forming dies.

Key Features

• Trapezoidal wire cross-section provides higher load capacity per unit length compared to round wire designs
• Chromium alloy steel construction for durability under cyclic loading conditions
• Blue color coding per ISO 10243 for quick visual identification of load class
• Free length of 1-1/4 inches (32.00 mm) with a travel to solid load of 12.20 mm
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 quality management systems, TUV Rheinland registered
• ANAB accredited production for consistent dimensional and performance compliance

Compatibility

Designed as an ISO 10243-compliant die spring replacement for stamping dies, progressive dies, and injection molds that accept an 8.00 mm rod diameter and 16.00 mm hole diameter with a 32.00 mm free length in the blue load class.

Installation Notes

Die springs of this type are installed by qualified tool and die makers or maintenance personnel with the press or machine fully de-energized and all stored mechanical energy released. Ensure the guide rod and pocket bore are within specified tolerances before seating the spring to avoid side loading. Do not compress the spring beyond its rated maximum deflection of 12.20 mm, as exceeding travel-to-solid limits accelerates fatigue failure. Inspect for coil cracking or set during scheduled die maintenance intervals.