Dayton Lamina 9-0604-21 Die Spring 1 in Blue Medium-duty

Product Description

The DAYTON LAMINA 9-0604-21 is a medium-duty die spring designed for use in stamping dies, molds, and tooling fixtures that require consistent, reliable return force. Built from chromium-vanadium steel with a D-shaped wire profile, it delivers a maximum deflection load of 36 pounds at 0.37 inches of travel. The free length is 1 inch, the hole diameter is 3/8 inch, and the rod diameter is 3/16 inch. This spring meets ISO 10243 international standards and is color-coded blue to identify its medium-duty load class at a glance. Licensed toolmakers and die maintenance technicians are the primary installers.

This die spring is suited for precision tooling applications in stamping, injection molding, and progressive die operations. It is commonly installed in commercial and industrial press tooling where controlled deflection and repeatable load characteristics are required. The ISO 9001:2015 registration and NAAMS compliance make it a fit for automotive supplier tooling environments where dimensional and quality standards are strictly enforced.

Key Features

• Chromium-vanadium steel construction for fatigue resistance under cyclic loading
• D-shaped wire cross-section for higher load capacity relative to round-wire springs of the same envelope
• Blue color coding identifies medium-duty load class per ISO 10243
• Maximum deflection load of 36 pounds at 0.37 inches travel
• Travel to solid of 0.46 inches provides a defined compression limit
• Compliant with ISO 10243, ISO 9001:2015, and NAAMS standards

Compatibility

Designed as an ISO 10243-compliant medium-duty die spring for use in stamping dies, molds, and tooling fixtures requiring a 3/8 inch hole diameter and 3/16 inch rod diameter with a 1 inch free length.

Installation Notes

Die springs are installed by toolmakers and die maintenance technicians with the press or machine de-energized and all stored energy released before service. The spring must be seated squarely on the rod or in the pocket to prevent side loading, which accelerates fatigue failure. Do not compress beyond the rated travel-to-solid dimension during setup. Inspect for cracking or set at each die service interval and replace springs in matched sets when possible.