Associated Spring Raymond 203-740 Die Spring 10 in Green

Product Description

The ASSOCIATED SPRING RAYMOND 203-740 is a heavy-duty die spring engineered for use in stamping dies, molds, and press tooling applications. It features a trapezoidal wire cross-section that provides a higher load capacity per unit of length compared to round-wire springs. With a free length of 10 inches (254 mm), a hole diameter of 40 mm, and a rod diameter of 20 mm, this green-coded spring delivers a spring rate of 97.07 N/mm and a maximum deflection load of 1734 N over 102 mm of travel to solid. Licensed toolroom professionals and die maintenance technicians are the primary installers.

This die spring is suited for industrial press and stamping tooling where consistent, repeatable force is required over high cycle counts. The green color code identifies its load classification, allowing technicians to quickly confirm the correct spring is seated in a die set during setup or maintenance. Typical installation scenarios include stripper plates, knockout mechanisms, and pressure pads in progressive, compound, and transfer dies used in metal fabrication and automotive stamping operations.

Key Features

• Trapezoidal wire shape delivers higher load density than round-wire die springs of equivalent envelope size
• Green color code for straightforward load-class identification at the die
• 102 mm maximum deflection with a linear spring rate of 97.07 N/mm for predictable force curves
• Chromium alloy steel construction for fatigue resistance under repetitive press cycling
• Manufactured to ISO 10243 die spring standards
• Produced under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems, TUV Rheinland registered

Compatibility

Designed as an OEM-style replacement or direct-fit component for die sets requiring an ISO 10243 green-series die spring with a 40 mm hole diameter, 20 mm rod diameter, and 10 inch free length.

Installation Notes

Die springs are installed by toolroom machinists or die maintenance technicians with the press fully de-energized, ram blocked, and all stored energy released before any work begins. Verify that the bore and rod dimensions of the die set match the spring envelope before seating the spring. Do not exceed the specified maximum deflection of 102 mm; operating beyond travel-to-solid will accelerate fatigue failure. Inspect seating surfaces for burrs or damage that could cause uneven loading across the spring coils.