Associated Spring Raymond 204-420 Die Spring 5 in Blue

Product Description

The ASSOCIATED SPRING RAYMOND 204-420 is a heavy-duty die spring engineered for use in metal stamping dies, press tooling, and industrial machinery applications. It features a trapezoidal wire cross-section that maximizes surface contact and delivers consistent load performance over the full compression cycle. With a free length of 5 inches and a maximum deflection of 48 millimeters, this spring is rated for a maximum deflection load of 796.80 newtons and a spring rate of 94.79 N/mm. The blue color coding indicates its load classification within the ISO 10243 standard. Manufactured from chromium alloy steel, it is suited for demanding cyclic-load environments where dimensional consistency and fatigue life are critical.

This die spring is designed for use in stamping dies, injection molds, jigs, and fixture assemblies across light manufacturing and heavy industrial settings. Its 20 mm hole diameter and 10 mm rod diameter make it a direct fit for standard tooling bore and rod configurations. Die makers, tool-and-die technicians, and maintenance machinists typically specify this spring during die build or scheduled tooling maintenance. It performs in both vertical and horizontal orientations within the die set.

Key Features

• Trapezoidal wire shape increases load capacity and contact area versus round-wire springs of the same envelope
• Blue color code identifies light-to-medium load class per ISO 10243
• 5 inch free length with 48 mm maximum deflection supports a full working stroke in standard die sets
• Spring rate of 94.79 N/mm provides predictable, linear force progression through the stroke
• Chromium alloy steel construction resists fatigue and wear under high-cycle press conditions
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 quality systems with TUV Rheinland registration

Compatibility

Designed as an OEM-style replacement or direct-fit component for standard die sets and press tooling requiring a 20 mm hole diameter, 10 mm rod diameter, and 5 inch free length die spring per ISO 10243 specifications.

Installation Notes

Die springs of this type are installed and replaced by tool-and-die technicians or maintenance machinists with the press de-energized and all stored mechanical energy fully released before disassembly. Ensure the bore and rod dimensions of the tooling match the spring envelope before installation. Do not grind or modify the spring ends, as this compromises the trapezoidal wire geometry and load rating. Inspect the mating pocket and rod for wear or burrs that could cause uneven seating and premature fatigue.