Associated Spring Raymond 104-304 Die Spring Red Medium Heavy-duty

Product Description

The ASSOCIATED SPRING RAYMOND 104-304 is a medium heavy-duty die spring designed for use in stamping dies, punch presses, and tooling applications where consistent, reliable spring force is required. Built from chromium alloy steel with a trapezoidal wire cross-section, this spring delivers a rated spring rate of 300 pounds per inch and a maximum deflection load of 111 pounds at 0.37 inches of travel. The red color coding identifies it as a medium heavy-duty grade per standard die spring classification. It is installed and replaced by tool and die makers, maintenance machinists, and industrial equipment technicians.

This spring is suited for use in compression applications within metal stamping dies, injection mold tooling, and industrial press assemblies. With a 0.625 inch hole diameter, an 11/32 inch rod diameter, and a 1 inch free length, it fits compact tooling cavities where space is limited but load capacity remains critical. Its trapezoidal wire profile provides higher load capacity relative to its physical size compared to round-wire springs of equivalent dimensions.

Key Features

• Medium heavy-duty duty rating with 111 pound maximum deflection load
• Spring rate of 300 pounds per inch for predictable, linear force output
• Trapezoidal wire cross-section maximizes load capacity within a compact envelope
• Red color coding for quick duty-grade identification in the field
• Chromium alloy steel construction for fatigue resistance under cyclic loading
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for standard-cavity compression spring applications in stamping dies and industrial tooling requiring a 0.625 inch hole diameter and 11/32 inch rod diameter.

Installation Notes

Die springs of this type are installed and serviced by qualified tool and die technicians or maintenance machinists. Always de-energize and mechanically lock the press or tooling before removing or installing die springs. Inspect the mating bore and rod for wear or misalignment prior to installation, as side loading will reduce service life. Do not compress beyond the rated maximum deflection of 0.37 inches.