Associated Spring Raymond 205-616 Die Spring 4 in Red

Product Description

The ASSOCIATED SPRING RAYMOND 205-616 is a heavy-duty die spring engineered for use in metal stamping, forming, and press tooling applications. It features a trapezoidal wire cross-section, which delivers higher load capacity and longer fatigue life compared to round-wire springs of the same envelope size. The spring is manufactured from chromium alloy steel and color-coded red to indicate its load rating within the ISO 10243 standard classification system. With a free length of 4 inches and a rod diameter of 16 millimeters, it is sized for mid-range die sets and press tool assemblies requiring consistent, repeatable force over high cycle counts.

This die spring is used in progressive dies, stamping presses, injection molds, and similar tooling where controlled compression force and precise travel are required. The red color designation corresponds to a medium-heavy load category under ISO 10243, making it appropriate for applications demanding greater force than light-duty springs while staying within the bounds of the tooling envelope. It is typically installed by tool and die makers, industrial maintenance technicians, or machine builders working on press tooling and mold assemblies.

Key Features

• Trapezoidal wire shape for higher load density and improved fatigue resistance over round-wire alternatives
• Red color coding identifies medium-heavy load class per ISO 10243
• Chromium alloy steel construction provides strength and wear resistance under repeated compression cycles
• 31 millimeter maximum deflection with a travel-to-solid load of 31 millimeters
• Spring rate of 696.64 newtons per millimeter for predictable, linear force delivery
• Manufactured under ISO 9001:2008, ISO/TS 16949:2009, and TUV Rheinland registered quality systems

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for press tooling, stamping dies, and mold assemblies specifying an ISO 10243 red-class spring with a 32 millimeter hole diameter and 16 millimeter rod diameter at 4 inches free length.

Installation Notes

Die springs are installed by qualified tool and die makers or industrial maintenance technicians during press tooling setup or die maintenance. Always de-energize and lock out the press before removing or installing springs. Confirm that the mounting hole diameter and guide rod diameter match the spring specifications before installation. Do not compress the spring beyond its rated maximum deflection to avoid permanent set or premature fatigue failure.