Dayton Lamina 9-1214-36 Die Spring Extra Heavy-duty Yellow

Product Description

The DAYTON LAMINA 9-1214-36 is an extra heavy-duty die spring designed for high-load tooling and stamping die applications. Built from chromium-vanadium steel, it delivers a maximum deflection load of 378 pounds at 0.88 inches of maximum deflection, with a free length of 3-1/2 inches. The 3/4-inch hole diameter accepts standard die spring pockets, and the 3/8-inch rod diameter suits common guided-rod setups. Color-coded yellow per ISO 10243 standards, this spring is easily identified during die maintenance and changeover. It is installed and serviced by tool and die makers, stamping press technicians, and precision machining professionals.

This die spring is suited for use in metal stamping dies, punching tools, stripping applications, and progressive die assemblies in both production and jobshop environments. The D-shaped wire cross-section maximizes load capacity within a compact envelope, making it a practical choice where space is constrained and high spring forces are required. Its yellow color coding denotes extra heavy-duty load class under the ISO 10243 international standard, allowing quick visual verification in multi-spring die setups.

Key Features

• Extra heavy-duty load rating with 378 pounds maximum deflection load
• Chromium-vanadium steel construction for fatigue resistance under cyclic loading
• D-shaped wire cross-section for increased load density in standard die spring pockets
• Yellow color coding per ISO 10243 for fast visual identification of load class
• Maximum operating deflection of 25 percent of free length (0.88 inches)
• Travel to solid load of 1.10 inches for defined solid-height reference
• Meets ISO 10243, ISO 9001:2015, and NAAMS dimensional standards

Compatibility

Designed as an ISO 10243 standard-compliant replacement die spring for extra heavy-duty applications requiring a 3/4-inch hole diameter, 3/8-inch rod diameter, and 3-1/2-inch free length in stamping dies, punching tools, and similar tooling assemblies.

Installation Notes

Die springs should be installed and replaced by qualified tool and die makers or press maintenance technicians. Always de-energize and lock out the press before accessing die components. Do not compress the spring beyond its rated maximum deflection or travel-to-solid dimension, as over-compression accelerates fatigue failure. Inspect springs for cracking, set, or discoloration at scheduled die maintenance intervals.