Associated Spring Raymond 103-728 Die Spring Blue

Product Description

The ASSOCIATED SPRING RAYMOND 103-728 is a heavy-duty die spring designed for use in stamping dies, punch presses, and tooling fixtures where consistent, controlled compression force is required. Built from chromium alloy steel with a trapezoidal wire cross-section, this spring delivers a spring rate of 153.00 pounds per inch and a maximum deflection load of 507.5 pounds. The 7-inch free length and blue color coding indicate a heavy-duty load category, making it straightforward to identify and specify during tooling design or maintenance. Die and tooling technicians are the typical end users for this part.

This die spring is suited for industrial press tooling and stamping applications where repeatable load performance and dimensional consistency are critical. The 1-1/2-inch hole diameter and 3/4-inch rod diameter make it compatible with standard die set configurations. The trapezoidal wire form maximizes load capacity relative to the compressed height compared to round-wire alternatives, which is a practical advantage in space-constrained tooling assemblies.

Key Features

• Chromium alloy steel construction for high fatigue life under cyclic compression
• Trapezoidal wire cross-section increases load density compared to round wire
• Blue color coding denotes heavy-duty load category for fast visual identification
• 153.00 lb/inch spring rate for predictable, linear force output
• Maximum deflection of 3.5 inches at 507.5 pounds load
• Manufactured to ISO 9001:2008 and ISO/TS 16949:2009 certified standards

Compatibility

Designed for use in standard die sets and punch press tooling assemblies requiring a 1-1/2-inch hole diameter and 3/4-inch rod diameter die spring in the heavy-duty blue load category.

Installation Notes

Die springs should be installed by qualified tooling or maintenance technicians familiar with press tooling safety procedures. Always de-energize and lock out the press before accessing the die set. Do not compress beyond the rated maximum deflection of 3.5 inches, as over-compression will cause permanent set and reduce service life. Inspect the spring seat and guide rod for wear or misalignment before installation.