Dayton Lamina 9-1222-26 Die Spring Heavy-duty Red

Product Description

The DAYTON LAMINA 9-1222-26 is a heavy-duty die spring designed for use in metal stamping dies, punch presses, and industrial tooling applications. It features a 0.75-inch hole diameter, a 0.375-inch rod diameter, and a 5.5-inch free length. Manufactured from chromium-vanadium steel, the spring delivers a maximum deflection load of 319 pounds at 1.65 inches of travel, with a travel-to-solid load of 1.84 inches. The red color coding follows ISO 10243 designation for heavy-duty duty rating, making identification straightforward during tool setup and maintenance. This spring is installed by tool-and-die technicians and industrial maintenance professionals in precision press tooling.

This spring is suited for heavy-duty die and mold tooling in manufacturing environments where consistent, repeatable spring force is required. Typical applications include stripper plates, pressure pads, and ejector mechanisms in metal stamping dies. The D-shaped wire cross-section and chromium-vanadium steel construction support high-cycle fatigue resistance in production tooling. Maximum operating deflection is rated at 30 percent of free length, which governs working travel limits in die design.

Key Features

• Heavy-duty duty rating with red color coding per ISO 10243 international standard
• 319 pounds maximum deflection load at 1.65 inches of deflection
• D-shaped wire cross-section for increased load capacity in a compact envelope
• Chromium-vanadium steel construction for fatigue resistance under high-cycle conditions
• Compliant with ISO 10243, ISO 9001:2015, and NAAMS standards
• 30 percent maximum operating deflection of free length for controlled working travel

Compatibility

Designed as an ISO 10243 heavy-duty die spring replacement for standard 0.75-inch bore die spring pockets accepting a 0.375-inch guide rod, compatible with tooling built to NAAMS dimensional standards.

Installation Notes

Die springs of this type are installed and replaced by tool-and-die technicians during die maintenance or rebuild. Always relieve all press pressure and lock out the press ram before servicing die components. Do not compress the spring beyond its rated maximum operating deflection of 30 percent during tool design or setup, as exceeding this limit accelerates fatigue failure. Inspect guide rods for wear and alignment before installing replacement springs.