Associated Spring Raymond 103-820 Die Spring Blue Medium-duty

Product Description

The ASSOCIATED SPRING RAYMOND 103-820 is a medium-duty die spring engineered for use in metal stamping dies, punch presses, and industrial tooling applications. It features a trapezoidal wire profile and is manufactured from chromium alloy steel, which provides consistent load performance and resistance to fatigue over repeated compression cycles. With a 2-inch hole diameter, a 1-inch rod diameter, and a 5-inch free length, this spring is sized for mid-range tooling cavities. Maximum deflection load is 1,175 pounds at a maximum deflection of 2.5 inches, yielding a spring rate of 470 pounds per inch. The blue color designation corresponds to the medium-duty load classification standard used across the die spring industry.

This die spring is suited for use in progressive dies, forming dies, and stripper plate assemblies in both production stamping and fabrication environments. The trapezoidal wire cross-section allows for higher load capacity within a given outer diameter compared to round wire designs. Installation is typically performed by toolmakers, die setters, and maintenance technicians working on mechanical or hydraulic press tooling. The spring mounts over a guide rod with the rod diameter and hole diameter providing the correct fit for this size class.

Key Features

• Medium-duty load rating with a spring rate of 470 pounds per inch
• Maximum deflection load of 1,175 pounds at 2.5 inches of travel
• Trapezoidal wire cross-section for higher load density versus round wire
• Chromium alloy steel construction for fatigue resistance in cyclic applications
• Blue color coding for fast visual identification of medium-duty rating
• Certified to ISO 9001:2008 and ISO/TS 16949:2009 quality standards; TUV Rheinland Registered; ANAB Accredited

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for industrial tooling applications requiring a 2-inch hole diameter, 1-inch rod diameter, and 5-inch free length in the medium-duty load class.

Installation Notes

Die spring installation and replacement should be performed by qualified toolmakers or die maintenance technicians. Before servicing, ensure the press is locked out and all stored energy in the tooling is fully released. The spring must be seated squarely against the die block or stripper plate with the guide rod centered through the bore. Do not compress the spring beyond its rated maximum deflection of 2.5 inches, as over-compression will permanently damage the spring and reduce service life.