Associated Spring Raymond 105-404 Heavy-duty Die Spring

Product Description

The ASSOCIATED SPRING RAYMOND 105-404 is a heavy-duty die spring designed for use in stamping dies, punch presses, and tooling fixtures where consistent, high-load compression force is required. Built from chromium alloy steel with a trapezoidal wire profile, this spring delivers a spring rate of 1080 pounds per inch and a maximum deflection load of 324 pounds at 0.3 inches of travel. The gold color coding follows the ISO standard die spring duty rating system, identifying this unit as a heavy-duty grade. Machinists, toolmakers, and die maintenance technicians are the primary installers and end users of this component.

This spring is suited for industrial tooling applications including stamping dies, injection mold components, stripper plates, and mechanical press fixtures. With a 3/4-inch hole diameter and 3/8-inch rod diameter, it fits standard die set hardware without modification. The 1-inch free length makes it appropriate for compact die sections where travel distance is limited. It is used across metal fabrication, automotive tooling, and precision manufacturing environments where repeatable force output and long cycle life are critical.

Key Features

• Heavy-duty duty rating with gold color coding per ISO die spring classification standards
• Trapezoidal wire cross-section for higher load capacity relative to round-wire springs of equivalent size
• 1080 pounds per inch spring rate for consistent, predictable force output across the deflection range
• Maximum deflection load of 324 pounds at 0.3 inches travel
• 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 and tooling fixtures requiring a heavy-duty die spring with a 3/4-inch hole diameter, 3/8-inch rod diameter, and 1-inch free length.

Installation Notes

Die springs should be installed by qualified toolmakers or die maintenance personnel familiar with press tooling safety procedures. Before servicing any die set, confirm the press is locked out and tagged out per applicable OSHA lockout/tagout procedures. Never compress a die spring beyond its rated maximum deflection, as exceeding the 0.3-inch travel limit can cause permanent set or premature failure. Inspect the mating rod and bore for proper clearance and alignment before pressing the spring into service.