Associated Spring Raymond 203-505 Die Spring 1-1/4 in

Product Description

The ASSOCIATED SPRING RAYMOND 203-505 is a heavy-duty die spring engineered for use in stamping dies, punch presses, and industrial tooling applications. Built from chromium alloy steel with a trapezoidal wire cross-section, this spring delivers consistent force and extended cycle life compared to standard round-wire springs. It carries a free length of 1-1/4 inches (32 mm), a rod diameter of 12.50 mm, and a hole diameter of 25.00 mm. The green color code identifies it within the ISO 10243 classification system, indicating its load range. Toolmakers, die setters, and maintenance technicians are the primary installers of this component.

This die spring is suited for light-to-medium load tooling setups in both production stamping operations and custom fabrication environments. It is designed to fit standard die sets where a 25 mm hole diameter and 12.50 mm rod diameter are specified. The trapezoidal wire profile increases the active material cross-section, allowing greater energy storage within the same envelope compared to conventional round-wire springs. It is appropriate for applications requiring repeatable deflection performance under cyclic loading conditions.

Key Features

• Chromium alloy steel construction for high fatigue resistance and durability in cyclic tooling applications
• Trapezoidal wire cross-section maximizes energy storage within the standard die spring envelope
• Green color code per ISO 10243 standard for straightforward load-range identification and replacement sourcing
• Maximum deflection of 12.50 mm with a spring rate of 458.53 N/mm for predictable, repeatable force output
• Maximum deflection load of 1003.80 N supports consistent clamping and stripping force in stamping dies
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems with TUV Rheinland registration

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for tooling applications specifying a 25 mm hole diameter, 12.50 mm rod diameter, and 32 mm free length in accordance with ISO 10243 green-series standards.

Installation Notes

Die spring installation and replacement should be performed by qualified toolmakers or die maintenance technicians with the press powered down and all stored energy fully released before disassembly. Inspect the mating rod and hole bores for wear or out-of-round conditions before seating the new spring, as oversized or undersized fits accelerate fatigue failure. Never use a spring that shows visible cracking, coil set, or a free length shorter than specification. Consult applicable workplace safety standards and machinery safety codes during press die service.