Dayton Lamina 9-1012-36 Die Spring Extra Heavy-duty Yellow

Product Description

The DAYTON LAMINA 9-1012-36 is an extra heavy-duty die spring designed for use in metal stamping dies, molds, and progressive tooling applications. Built from chromium-vanadium steel, this spring features a D-shaped wire cross-section and a yellow color coding that identifies its extra heavy-duty load rating. The spring has a 0.625-inch hole diameter, an 11/32-inch rod diameter, and a 3-inch free length. It delivers a maximum deflection load of 152 pounds at a maximum deflection of 0.75 inches, with a travel to solid load of 0.98 inches. The part weighs approximately 0.091 pounds.

This die spring is suited for toolroom and production die applications in automotive, aerospace, and general manufacturing environments. Extra heavy-duty springs in this color category are typically specified where high force output is needed in a compact spring cavity. The yellow designation follows ISO 10243 color coding conventions, making it straightforward to identify and cross-reference in die maintenance programs. Licensed toolmakers, die setters, and machine shop technicians are the primary installers.

Key Features

• Extra heavy-duty load rating with a maximum deflection load of 152 pounds
• Chromium-vanadium steel construction for high fatigue resistance in cycling applications
• D-shaped wire cross-section for consistent seating and reduced torsional stress
• Yellow color coding per ISO 10243 for fast field identification
• Maximum deflection of 0.75 inches with a 25 percent maximum operating deflection rating
• Meets ISO 10243, ISO 9001:2015, and NAAMS standards

Compatibility

Designed as an OEM-style replacement die spring for standard ISO 10243 and NAAMS-compliant die sets requiring a 0.625-inch hole diameter and 11/32-inch rod diameter in extra heavy-duty yellow-class applications.

Installation Notes

Die springs should be installed by qualified toolmakers or die maintenance technicians familiar with press tooling safety procedures. Always fully de-energize and lock out the press before removing or replacing die springs. Inspect the spring pocket and rod for wear, scoring, or misalignment before installing a replacement spring. Never compress a die spring beyond its rated maximum operating deflection, as exceeding this limit accelerates fatigue failure.