Dayton Lamina 9-0807-21 Die Spring Blue Medium-duty

Product Description

The DAYTON LAMINA 9-0807-21 is a medium-duty die spring designed for use in stamping dies, punch press tooling, and precision industrial fixtures. Built from chromium-vanadium steel, it features a D-shaped wire cross-section and a blue color coding that identifies its medium-duty load range. The spring has a hole diameter of 0.5 inches, a rod diameter of 0.28125 inches (9/32 inches), and a free length of 1.75 inches. Maximum deflection load is 60 pounds at 0.65 inches of travel, with a maximum operating deflection of 37.50 percent. This spring meets ISO 10243 international standards and is suited for high-cycle tooling applications.

This die spring is used in metal stamping, forming, and progressive die tooling across manufacturing and fabrication environments. It is appropriate for medium-load applications where consistent force and repeatable deflection are required. The chromium-vanadium steel construction provides fatigue resistance in high-cycle press operations. Typical installers include tool and die makers, press maintenance technicians, and precision fabrication professionals working in both production and job-shop settings.

Key Features

• Chromium-vanadium steel construction for fatigue resistance in high-cycle tooling
• D-shaped wire cross-section for stable seating and reduced rotation
• Blue color coding identifies medium-duty load classification per ISO 10243
• Maximum deflection load of 60 pounds at 0.65 inches travel
• Travel to solid load of 0.91 inches for controlled bottoming behavior
• Compliant with ISO 10243, ISO 9001:2015, and NAAMS standards

Compatibility

Designed as an OEM-style replacement or direct-fit die spring for medium-duty stamping die and punch press tooling applications requiring a 0.5-inch hole diameter and 9/32-inch rod diameter.

Installation Notes

Die springs are installed by qualified tool and die makers or press maintenance technicians. Before servicing any die assembly, ensure the press is fully de-energized, locked out, and the ram is blocked in accordance with applicable machine safety standards. Verify that the spring seat and guide rod are free of burrs or contamination before installation. Do not compress the spring beyond its rated maximum deflection to avoid premature fatigue failure.