Associated Spring Raymond 204-507 Die Spring Medium-duty

Product Description

The ASSOCIATED SPRING RAYMOND 204-507 is a medium-duty die spring designed for use in die sets, molds, and tooling fixtures that require reliable, consistent return force. Built from chromium alloy steel with a trapezoidal wire cross-section, this spring delivers higher load capacity relative to its size compared to round-wire designs. The blue color coding indicates medium-duty service per ISO 10243 classification. Free length is 1.75 inches (44 mm), with a maximum deflection of 16.50 mm and a maximum deflection load of 299.72 pounds (1333.20 N). Installation is straightforward in standard die sets using matching rod and hole diameters.

This die spring is suited for stamping dies, injection molds, punch and die assemblies, and industrial tooling applications where controlled compression and repeatable stroke are required. The 204-507 fits applications calling for a rod diameter of 12.50 mm and a hole diameter of 25.00 mm. Medium-duty blue springs are commonly used where moderate load and moderate deflection are balanced. This spring is appropriate for both OEM tooling builds and field replacement in production tooling maintenance.

Key Features

• Medium-duty blue classification per ISO 10243 for standardized load and deflection performance
• Trapezoidal wire cross-section increases load capacity and improves fatigue life versus round-wire springs
• Chromium alloy steel construction provides strength and wear resistance under cyclic loading
• Free length of 1.75 inches (44 mm) with 16.50 mm maximum deflection stroke
• Maximum deflection load of 299.72 pounds (1333.20 N) for predictable force output
• Fits standard 25.00 mm hole diameter and 12.50 mm rod diameter die set configurations

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for tooling assemblies requiring a 25.00 mm hole diameter, 12.50 mm rod diameter, medium-duty blue ISO 10243 spring with a 44 mm free length.

Installation Notes

Die springs are installed and serviced by tool and die makers, maintenance machinists, or press room technicians. Always de-energize and lock out the press or machine before removing or installing die springs. Ensure the rod and pocket diameters in the die set match the spring specifications to prevent buckling or improper seating. Do not compress the spring beyond its rated maximum deflection to avoid permanent set or premature failure.