Associated Spring Raymond 105-305 Heavy-duty Die Spring

Product Description

The ASSOCIATED SPRING RAYMOND 105-305 is a heavy-duty die spring engineered for use in stamping, forming, and tooling die assemblies. It features a trapezoidal wire shape that delivers higher load capacity and greater energy storage compared to round-wire springs of the same envelope size. The spring carries a maximum deflection load of 111 pounds and a spring rate of 325 pounds per inch, making it well suited for high-cycle press tooling applications. The gold color coding identifies the heavy-duty load classification at a glance. Manufactured from chromium alloy steel for fatigue resistance and long service life in industrial press environments.

This die spring is designed for installation in standard die sets and progressive tooling used in metal stamping, blanking, forming, and drawing operations. The 0.625-inch hole diameter accommodates standard tooling bores, while the 0.344-inch rod diameter suits common guide rod sizes. With a free length of 1.25 inches and a maximum deflection of 0.38 inches, this spring fits compact die spaces where controlled load and consistent return force are required. Toolmakers, die setters, and maintenance technicians working on mechanical and hydraulic press tooling are the primary installers.

Key Features

• Heavy-duty load rating with 111-pound maximum deflection load
• Spring rate of 325 pounds per inch for predictable, consistent force
• Trapezoidal wire shape for increased load capacity in a compact envelope
• Chromium alloy steel construction for fatigue resistance in high-cycle applications
• Gold color coding provides instant visual identification of duty class
• Manufactured to ISO 9001:2008 and ISO/TS 16949:2009 certified quality standards

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for standard heavy-duty die sets and press tooling assemblies requiring a 0.625-inch hole diameter and 0.344-inch rod diameter with a 1.25-inch free length.

Installation Notes

Die spring installation and replacement should be performed by qualified toolmakers or die maintenance technicians with the press locked out and all stored energy released before disassembly. Inspect the mating bore and guide rod for wear or damage before installing a replacement spring. Never stack die springs to achieve additional travel unless the tooling design explicitly calls for it, as this can create uneven load distribution and accelerated fatigue. Follow applicable shop safety procedures and press lockout/tagout protocols throughout the service process.