Associated Spring Raymond 106-407 Die Spring Extra Heavy-duty

Product Description

The ASSOCIATED SPRING RAYMOND 106-407 is an extra heavy-duty die spring designed for use in stamping dies, punch presses, and tooling fixtures that demand consistent, high-cycle force. Built from chromium alloy steel with a trapezoidal wire cross-section, it delivers a spring rate of 750 pounds per inch and a maximum deflection load of 328.1 pounds at 0.44 inches of travel. The green color coding identifies it as an extra heavy-duty grade per standard die spring classifications. This spring suits tooling applications where precise load control and long fatigue life are required under repeated compression cycles.

This die spring is used in metal stamping, forming, and injection mold tooling across manufacturing and fabrication environments. It fits rod diameters up to 0.375 inches and seats inside a 0.75-inch bore. Typical installations include stripper plates, lifters, and pressure pads in progressive dies and single-station tooling. It is appropriate for both light production shops and high-volume automated press lines where reliable spring return force is critical to part quality and die longevity.

Key Features

• Extra heavy-duty duty rating with 328.1 lb maximum deflection load
• 750 pounds per inch spring rate for consistent, predictable force output
• Trapezoidal wire cross-section maximizes coil density and fatigue life
• Chromium alloy steel construction resists wear and deformation under high-cycle use
• Green color coding provides quick visual identification of duty rating at the press
• 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 die spring for tooling applications requiring a 0.75-inch hole diameter, 0.375-inch rod diameter, and 1.75-inch free length in an extra heavy-duty green-grade application.

Installation Notes

Die springs are installed and serviced by tool and die makers or press maintenance technicians. Always de-energize and lock out the press before accessing the die set. Ensure the spring seats fully and squarely in the pocket without side-loading the rod. Do not compress beyond the rated maximum deflection of 0.44 inches, as over-compression accelerates fatigue failure and can cause catastrophic spring breakage inside the die.