Associated Spring Raymond 103-310 Die Spring Medium-duty

Product Description

The ASSOCIATED SPRING RAYMOND 103-310 is a medium-duty die spring designed for use in metal stamping dies, punch presses, and tooling fixtures. It features a 0.625-inch hole diameter, an 11/32-inch rod diameter, and a free length of 2.5 inches. The spring is wound from chromium alloy steel with a trapezoidal wire cross-section, which delivers higher load capacity in a compact envelope compared to round-wire designs. The blue color coding indicates medium-duty load class per standard die spring classification. Licensed toolmakers, die setters, and maintenance machinists are the primary installers of this component.

This die spring is suited for industrial tooling applications where consistent, repeatable spring force is required across high-cycle stamping, forming, and stripping operations. It fits standard die sets using a 0.625-inch bore and an 11/32-inch guide rod. The 2.5-inch free length and 1.25-inch maximum deflection make it appropriate for moderate-stroke tooling configurations in both production and prototype die assemblies.

Key Features

• Trapezoidal wire cross-section provides higher load density than standard round-wire springs
• Blue color code identifies medium-duty load class for quick visual identification during die setup
• Maximum deflection load of 75 pounds with a spring rate of 65 pounds per inch
• Maximum deflection of 1.25 inches within a 2.5-inch free length
• Chromium alloy steel construction for fatigue resistance under high-cycle tooling conditions
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems with TUV Rheinland registration

Compatibility

Designed as an OEM-style replacement or direct-fit component for standard die sets requiring a medium-duty die spring with a 0.625-inch hole diameter and 11/32-inch guide rod diameter.

Installation Notes

Die springs should be installed by qualified toolmakers or die maintenance technicians with the press de-energized and all stored energy released before service. Ensure the guide rod diameter matches the 11/32-inch specification and that the pocket bore is sized to the 0.625-inch hole diameter to prevent cocking or binding under load. Do not exceed the rated maximum deflection of 1.25 inches, as over-compression accelerates fatigue failure. Inspect springs periodically for set, cracking, or color-coat wear as part of scheduled die maintenance.