Associated Spring Raymond 104-740 Die Spring Red

Product Description

The ASSOCIATED SPRING RAYMOND 104-740 is a heavy-duty die spring engineered for use in stamping dies, punch presses, and precision tooling applications. It features a 1-1/2 inch hole diameter, a 3/4 inch rod diameter, and a 10 inch free length. The trapezoidal wire shape maximizes the load capacity within a compact cross-section, delivering a maximum deflection load of 651.2 pounds at 3.7 inches of maximum deflection. The spring rate is 176 pounds per inch. Built from chromium alloy steel, this spring is suited for high-cycle industrial environments where consistent force and fatigue resistance are required. Die maintenance technicians and toolroom machinists are the primary installers.

This die spring is designed for installation in standard die sets used in metal stamping, forming, and blanking operations. The red color coding indicates a heavy load classification per industry convention, making it straightforward to identify and source replacements during die rebuilds. The 10 inch free length accommodates deeper die cavities where longer spring travel is needed. It is packaged and sold individually, making it practical for single-spring replacement jobs as well as larger tooling builds.

Key Features

• 1-1/2 inch hole diameter with 3/4 inch rod diameter for precise guided installation
• 10 inch free length suited for deep die cavities requiring extended travel
• 651.2 pound maximum deflection load at 3.7 inches of deflection
• 176 pounds per inch spring rate for predictable, consistent force output
• Trapezoidal wire cross-section maximizes load density compared to round wire designs
• Chromium alloy steel construction for high-cycle fatigue resistance
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems

Compatibility

Designed as an OEM-style replacement or new-build component for standard guided die spring applications using a 1-1/2 inch bore and 3/4 inch guide rod.

Installation Notes

Die springs should be installed by qualified toolroom technicians or die maintenance personnel familiar with press tooling. Always relieve all stored energy and lock out the press before removing or installing die springs. Inspect the guide rod and bore for wear, scoring, or misalignment before seating the new spring. Do not exceed the rated maximum deflection during operation, as over-compression accelerates fatigue failure and creates a safety hazard.