Dayton Lamina 9-1618-21 Die Spring Blue Medium-duty

Product Description

The DAYTON LAMINA 9-1618-21 is a medium-duty die spring designed for use in metal stamping dies, punch presses, and related tooling applications. Built from chromium-vanadium steel, it features a D-shaped wire cross-section that increases contact area and load consistency compared to round-wire designs. The spring has a 1 inch hole diameter, a 1/2 inch rod diameter, and a free length of 4-1/2 inches. It delivers a maximum deflection load of 284 pounds at a maximum operating deflection of 1.7 inches, representing 37.50 percent of free length. This part is sold individually and is appropriate for tool room, maintenance, and production tooling environments.

This die spring is suited for medium-duty stamping and forming die applications in both production and maintenance tooling settings. The blue color designation indicates medium-duty rating under the ISO 10243 international standard color-coding system, allowing quick visual identification of spring duty when working with mixed tooling inventories. It is typically installed by tool and die makers, press operators, and industrial maintenance technicians working on metal forming equipment.

Key Features

• Medium-duty rating with blue color coding per ISO 10243
• Chromium-vanadium steel construction for strength and fatigue resistance
• D-shaped wire profile for improved load distribution and stability on the rod
• Maximum deflection load of 284 pounds at 1.7 inches of travel
• Maximum operating deflection of 37.50 percent of free length
• Travel to solid load of 1.92 inches
• Meets ISO 10243, ISO 9001:2015, and NAAMS standards

Compatibility

Designed as an OEM-style replacement or direct-fit component for medium-duty die spring positions requiring a 1 inch hole diameter, 1/2 inch rod diameter, and 4-1/2 inch free length in standard stamping and forming die assemblies.

Installation Notes

Installation should be performed by qualified tool and die makers or industrial maintenance technicians familiar with press tooling and die assembly. Always relieve all press pressure and lock out the press before servicing or replacing die springs. Inspect the mating rod and bore for wear or damage before installing a new spring. Do not compress the spring beyond its rated maximum operating deflection during setup or production runs.