Associated Spring Raymond 103-404 Die Spring Blue

Product Description

The ASSOCIATED SPRING RAYMOND 103-404 is a medium-duty die spring engineered for use in stamping dies, punch presses, and similar tooling applications. Built from chromium alloy steel with a trapezoidal wire cross-section, it delivers a spring rate of 320 pounds per inch and handles a maximum deflection load of 156 pounds at 0.5 inches of maximum deflection. The blue color coding identifies it as a medium-duty rating per standard die spring classification. Licensed HVAC techs, tool-and-die machinists, and industrial maintenance technicians working with press tooling or fixture applications install this spring type routinely.

This spring fits applications requiring a 0.75-inch hole diameter and a 0.375-inch rod diameter with a free length of 1 inch. It is suited for use in stamping dies, injection mold assemblies, jigs, and fixture tooling where consistent, repeatable spring force is required under cyclic compression loads. The medium-duty rating makes it appropriate for moderate-load cycling in production tooling environments.

Key Features

• Trapezoidal wire shape provides higher load capacity relative to round-wire springs of equivalent size
• Chromium alloy steel construction for durability under repeated compression cycles
• Blue color coding identifies medium-duty rating for fast visual identification at the tooling bench
• 320 pounds per inch spring rate with 156-pound maximum deflection load at 0.5 inches deflection
• ISO 9001:2008 and ISO/TS 16949:2009 certified manufacturing; TUV Rheinland registered

Compatibility

Designed as a standard medium-duty die spring replacement for tooling applications requiring a 0.75-inch hole diameter and 0.375-inch rod diameter with a 1-inch free length.

Installation Notes

Installation is performed by tooling technicians or maintenance machinists during die build or tooling maintenance. Ensure the mating die pocket diameter and guide rod diameter match the spring specifications before installation. Never exceed the published maximum deflection of 0.5 inches, as over-compression can cause permanent set or premature fatigue failure. Inspect the spring for cracking, set, or color fade at regular die maintenance intervals.