Associated Spring Raymond 203-104 Die Spring 1 in Green

Product Description

The ASSOCIATED SPRING RAYMOND 203-104 is a heavy-duty die spring engineered for use in stamping dies, molds, and press tooling where consistent return force and long cycle life are required. It features a trapezoidal wire cross-section, which allows more material per coil compared to round wire, resulting in higher load capacity within a compact envelope. With a free length of 1 inch (25.00 mm), a rod diameter of 5.00 mm, and a hole diameter of 10.00 mm, this green-coded spring falls in the heavy-load classification per ISO 10243. It is manufactured from chromium alloy steel for strength and fatigue resistance. Installation and selection are guided by the ISO 10243 standard, making it straightforward to cross-reference in engineering drawings.

This spring is intended for industrial tooling applications, primarily in metal stamping, injection mold tooling, and progressive die assemblies. The green color coding indicates a heavy-load series, allowing toolroom technicians and die makers to quickly identify and replace springs during maintenance. With a maximum deflection of 10.30 mm and a spring rate of 57.10 N/mm, it delivers controlled, repeatable force throughout its working stroke. It is suited for production environments where springs are cycled at high frequency and dimensional consistency between replacements is critical.

Key Features

• Trapezoidal wire cross-section delivers higher load density compared to round wire springs of the same envelope
• Green color coding per ISO 10243 heavy-load series for fast field identification
• 1 inch (25.00 mm) free length fits compact die sets with tight shut height constraints
• Maximum deflection load of 103.00 N at full 10.30 mm travel to solid
• Spring rate of 57.10 N/mm provides predictable, linear force progression
• Certified to ISO 9001:2008 and ISO/TS 16949:2009 with TUV Rheinland registration and ANAB accreditation

Compatibility

Designed as an ISO 10243 standard die spring replacement for heavy-load applications requiring a 10.00 mm hole diameter, 5.00 mm rod diameter, and 1 inch free length. Compatible with any tooling designed to ISO 10243 specifications in the green heavy-load series.

Installation Notes

Die spring replacement is performed by toolroom machinists or die maintenance technicians. Always relieve all press tonnage and de-energize the press or mold machine before accessing the die set. Verify rod and hole diameters match the application before installation, and never compress the spring beyond its rated maximum deflection of 10.30 mm to avoid permanent set or fatigue failure. Springs in high-cycle tooling should be inspected and replaced as a matched set to maintain consistent stripping or return forces across the die.