Associated Spring Raymond 105-306 Heavy-duty Die Spring

Product Description

The ASSOCIATED SPRING RAYMOND 105-306 is a heavy-duty die spring designed for use in stamping dies, punch presses, and other high-cycle tooling applications. It features a trapezoidal wire shape that delivers higher load capacity and longer fatigue life compared to round-wire springs of the same envelope size. With a free length of 1.5 inches, a hole diameter of 0.625 inches, and a rod diameter of 0.34375 inches, this spring fits standard die set configurations. It is manufactured from chromium alloy steel and finished in gold to indicate its heavy-duty load classification. The 105-306 is suited for tool and die shops, metal fabrication facilities, and production stamping operations.

This die spring is used in compression spring applications inside stamping dies, injection molds, and fixture assemblies where consistent, repeatable force is required over high cycle counts. The gold color coding follows the industry-standard load classification system, identifying this unit as a heavy-duty spring. It is appropriate for both new die builds and replacement of worn or fatigued springs in existing tooling. Toolmakers, die setters, and maintenance machinists are the primary installers.

Key Features

• Heavy-duty load rating with a maximum deflection load of 122.4 pounds
• Maximum deflection of 0.45 inches for controlled compression travel
• Spring rate of 280 pounds per inch for predictable force output
• Trapezoidal wire cross-section provides higher load density in a compact envelope
• Chromium alloy steel construction for durability in high-cycle tooling environments
• Gold color code identifies heavy-duty classification per industry convention

Compatibility

Designed as an OEM-style replacement or new-build component for heavy-duty die spring applications requiring a 0.625-inch hole diameter, 0.34375-inch rod diameter, and 1.5-inch free length.

Installation Notes

Die springs should be installed by qualified toolmakers or die maintenance personnel familiar with press tooling safety procedures. Always de-energize and lock out the press before removing or replacing die springs. Do not exceed the rated maximum deflection of 0.45 inches, as over-compression accelerates fatigue and can cause premature failure. Inspect the mating rod and bore dimensions for proper clearance before installation to prevent binding.