Associated Spring Raymond 103-618 Die Spring Blue Medium-duty

Product Description

The ASSOCIATED SPRING RAYMOND 103-618 is a medium-duty die spring engineered for use in stamping dies, punch presses, and other industrial tooling applications. It features a 1-1/4 inch hole diameter, a 5/8 inch rod diameter, and a 4-1/2 inch free length. Constructed from chromium alloy steel with a trapezoidal wire profile, this spring delivers consistent force output and extended fatigue life compared to standard round-wire springs. A blue color code identifies its medium-duty rating. The 103-618 handles a maximum deflection load of 360 pounds over a maximum deflection of 2.25 inches, with a spring rate of 160 pounds per inch.

This die spring is suited for use in metal stamping, forming, and die-set assemblies in both production and toolroom environments. Its trapezoidal wire cross-section maximizes the amount of material in each coil, allowing higher load capacity within a compact envelope. Tool and die makers, press maintenance technicians, and industrial maintenance professionals are the typical installers. The 103-618 is appropriate for applications requiring repeatable, predictable spring force in confined die spaces where rod guidance is provided.

Key Features

• Medium-duty rating color-coded blue for quick identification during die assembly
• Trapezoidal wire shape increases load density compared to round-wire designs
• Chromium alloy steel construction for high fatigue resistance and durability
• Spring rate of 160 pounds per inch with a maximum deflection of 2.25 inches
• Maximum deflection load of 360 pounds suits a wide range of stamping and forming dies
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for medium-duty stamping die sets and punch press tooling requiring a 1-1/4 inch hole diameter and 5/8 inch rod diameter with a 4-1/2 inch free length.

Installation Notes

Die springs should be installed by qualified tool and die makers or industrial maintenance technicians. Always de-energize and lock out the press before servicing any die components. The spring must be guided on a rod or inside a bore - never run unguided under load. Do not compress the spring beyond its rated maximum deflection of 2.25 inches, as exceeding this limit reduces fatigue life and risks permanent set.