Associated Spring Raymond 106-305 Die Spring Extra Heavy-duty

Product Description

The ASSOCIATED SPRING RAYMOND 106-305 is an extra heavy-duty die spring engineered for high-load tooling and stamping die applications. It features a trapezoidal wire cross-section that delivers higher load capacity and longer service life compared to round-wire springs of the same envelope size. With a free length of 1.25 inches, a hole diameter of 0.625 inches, and a rod diameter of 0.344 inches, this spring fits standard die sets used in metal fabrication and press tooling. The green color coding identifies it as an extra heavy-duty rating per ISO die spring standards. A spring rate of 438 pounds per inch and a maximum deflection load of 146.9 pounds make it suited for demanding cycle applications.

This die spring is used in punch and die tooling, stripper plates, and component ejection mechanisms in metal stamping and forming operations. It is installed by toolmakers, die setters, and press technicians working in production stamping, sheet metal fabrication, and precision machining environments. The compact 1.25-inch free length suits confined die spaces where consistent, repeatable spring force is required across high production cycles.

Key Features

• Extra heavy-duty duty rating with green color coding per ISO die spring standard
• Trapezoidal wire shape provides higher load density than equivalent round-wire springs
• Spring rate of 438 pounds per inch for consistent, predictable deflection force
• Maximum deflection load of 146.9 pounds with maximum deflection of 0.31 inches
• Chromium alloy steel construction for fatigue resistance under repeated cycling
• ISO 9001:2008 and ISO/TS 16949:2009 certified manufacturing; TUV Rheinland Registered

Compatibility

Designed as a direct-fit replacement die spring for standard 0.625-inch hole diameter die spring pockets requiring an extra heavy-duty green-coded spring with a 1.25-inch free length and 0.344-inch rod diameter.

Installation Notes

Die springs are installed by qualified toolmakers or die setters during die maintenance or build. Always relieve all press pressure and lock out the ram before removing or replacing die springs. Do not compress this spring beyond its rated maximum deflection of 0.31 inches, as over-compression accelerates fatigue failure. Inspect the spring pocket bore and rod for wear or misalignment before installation to ensure proper seating and prevent side loading.