Associated Spring Raymond 106-408 Die Spring Extra Heavy

Product Description

The ASSOCIATED SPRING RAYMOND 106-408 is an extra heavy-duty die spring designed for use in stamping dies, punch presses, and industrial tooling applications. Built from chromium alloy steel with a trapezoidal wire cross-section, it delivers a spring rate of 660 pounds per inch and a maximum deflection load of 340 pounds at 0.5 inches of travel. The free length is 2 inches, the hole diameter is 3/4 inches, and the rod diameter is 3/8 inches. The green color coding identifies this spring as extra heavy-duty per standard die spring color classification. Installation and maintenance are typically performed by tooling technicians and mechanical maintenance professionals.

This die spring is suited for high-cycle industrial tooling environments where consistent force and fatigue resistance are required. Typical applications include metal stamping dies, injection mold components, jigs, fixtures, and other precision tooling setups that demand repeatable spring performance under heavy loads. The compact 2-inch free length makes it appropriate for tooling assemblies with limited cavity depth.

Key Features

• Extra heavy-duty duty rating with 340-pound maximum deflection load
• Spring rate of 660 pounds per inch for consistent, predictable force output
• Trapezoidal wire cross-section for higher load capacity in a compact envelope
• Chromium alloy steel construction for durability and fatigue resistance
• Green color coding per standard die spring duty classification
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems

Compatibility

Designed as a standard-dimension die spring for use in industrial stamping dies and tooling assemblies requiring a 3/4-inch hole diameter, 3/8-inch rod diameter, and 2-inch free length with extra heavy-duty load characteristics.

Installation Notes

Die springs should be installed by qualified tooling or mechanical maintenance technicians familiar with press tooling safety procedures. Always de-energize and lock out the press before servicing any die components. Ensure the mating hole and rod diameters match the spring specifications to prevent lateral loading or binding during compression. Do not compress the spring beyond its rated maximum deflection of 0.5 inches, as exceeding this limit can cause premature fatigue failure.