Associated Spring Raymond 103-518 Die Spring Blue

Product Description

The ASSOCIATED SPRING RAYMOND 103-518 is a medium-duty die spring designed for use in stamping dies, press tooling, and industrial machinery where consistent, repeatable spring force is required. Built from chromium alloy steel with a trapezoidal wire profile, this spring delivers a spring rate of 110 pounds per inch and handles a maximum deflection load of 234 pounds at 2.25 inches of travel. The blue color coding identifies its medium-duty rating at a glance, following the ISO standard color classification for die springs. Machinists, tool-and-die makers, and maintenance technicians install this spring in new die builds and as a direct replacement in existing tooling.

This spring fits applications requiring a 1 inch hole diameter and 0.5 inch rod diameter, with a free length of 4.5 inches. It is well suited for use in metal stamping dies, injection mold tooling, hydraulic press fixtures, and general industrial spring-return mechanisms. Its medium-duty classification makes it appropriate for moderate cycle-count applications where controlled deflection and predictable load characteristics are critical to die performance and part consistency.

Key Features

• 1 inch hole diameter and 0.5 inch rod diameter for standard die set fitment
• 4.5 inch free length with 2.25 inches of maximum deflection travel
• 234 pound maximum deflection load capacity
• 110 pound-per-inch spring rate for consistent, predictable force output
• Trapezoidal wire shape in chromium alloy steel for high fatigue resistance
• Blue color coding denotes medium-duty rating per ISO die spring classification

Compatibility

Designed as a standard medium-duty die spring for use in press tooling and stamping die assemblies requiring a 1 inch hole diameter, 0.5 inch rod diameter, and 4.5 inch free length.

Installation Notes

Die springs are installed by tool-and-die makers and maintenance technicians working on stamping and forming equipment. Always de-energize and lock out the press before servicing die components. Ensure the spring seat bore and rod clearances match the specified hole and rod diameters to prevent side loading. Do not compress this spring beyond its rated maximum deflection of 2.25 inches, as exceeding this limit accelerates fatigue and can cause premature failure.