Associated Spring Raymond 203-148 Die Spring 12 in Green

Product Description

The ASSOCIATED SPRING RAYMOND 203-148 is a heavy-duty die spring designed for use in stamping dies, injection molds, and precision tooling applications. It features a trapezoidal wire shape that delivers higher load capacity per unit of travel compared to round wire springs of the same size. With a 12-inch free length and a spring rate of 6.28 N/mm, this green-coded spring falls in the light-load classification within the standard die spring color coding system. It is installed by toolmakers, die setters, and maintenance technicians working on production tooling in industrial and manufacturing environments.

This spring is suited for use as a return spring, stripper spring, or pressure spring in progressive dies, compound dies, and injection mold tooling. The green color code indicates a light load rating appropriate for applications requiring controlled, consistent force over a travel range of up to 125 mm. It fits into a 10 mm hole diameter and accepts a 5 mm guide rod, making it compatible with standard ISO 10243 die spring configurations used across a broad range of tooling platforms.

Key Features

• Trapezoidal wire cross-section provides greater load density versus round wire springs of equivalent envelope size
• 12-inch (305 mm) free length suits deep die sets and long-stroke tooling applications
• Maximum deflection of 125 mm with a maximum deflection load of 137.50 N at full travel to solid
• Chromium alloy steel construction for fatigue resistance under high-cycle tooling conditions
• Green color code identifies light-load classification per ISO 10243 die spring standards
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems with TUV Rheinland registration

Compatibility

Conforms to ISO 10243 die spring standards. Designed to fit a 10 mm hole diameter with a 5 mm guide rod, making it a direct fit for ISO-standard die spring pockets in compatible tooling assemblies.

Installation Notes

Die spring installation and replacement is performed by qualified toolmakers or die maintenance technicians. Ensure the guide rod and spring pocket dimensions match the rod diameter and hole diameter specifications before installation. Never compress a die spring beyond its rated maximum deflection, as coil bind can cause premature fatigue failure or tooling damage. Power down and de-energize all press and tooling equipment fully before servicing any die components.