Associated Spring Raymond 206-404 Die Spring 1 in Yellow

Product Description

The ASSOCIATED SPRING RAYMOND 206-404 is a heavy-duty die spring designed for use in stamping dies, punch presses, and tooling fixtures. It features a trapezoidal wire shape and is manufactured from chromium alloy steel, which provides high load capacity and fatigue resistance relative to round-wire springs of comparable size. The spring has a free length of 1 inch (25 millimeters), a hole diameter of 20 millimeters, and a rod diameter of 10 millimeters. The yellow color coding indicates load class per ISO 10243 standards. This part is installed by tool and die makers, machine builders, and industrial maintenance technicians working with precision stamping or forming tooling.

This die spring is suited for light-duty to medium-duty stamping and forming applications where consistent spring rate and reliable cycle life are required. It fits standard 20-millimeter die sets and tooling bores. Typical install scenarios include punch and die assemblies, strippers, pressure pads, and ejector mechanisms in production stamping operations. It is also used in jigs, fixtures, and automation tooling where repeatable force output is critical.

Key Features

• Trapezoidal wire shape provides higher load capacity per unit length compared to round-wire alternatives
• Chromium alloy steel construction for fatigue resistance in high-cycle tooling applications
• Yellow color code denotes load class per ISO 10243 for quick visual identification
• Maximum deflection of 6.20 millimeters with a spring rate of 1673.07 N/mm
• Maximum deflection load of 1816.60 N at full travel to solid
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems

Compatibility

Designed as a standard replacement or new-build die spring for tooling bores with a 20-millimeter hole diameter and 10-millimeter rod diameter, conforming to ISO 10243 dimensional standards for yellow-class die springs.

Installation Notes

Installation is typically performed by tool and die makers or maintenance machinists during die build or rebuild. Before servicing any press tooling, disengage the press, lock out all stored energy, and confirm the ram is fully supported. Seat the spring squarely on the rod and within the pocket bore to prevent lateral loading, which accelerates fatigue failure. Never compress a die spring beyond its rated maximum deflection, as overtravel causes rapid loss of load capacity and premature fracture.