Gibraltar DCIL20-51 Die Spring 3/4 in Light Duty Green

Product Description

The GIBRALTAR DCIL20-51 is a light-duty die spring designed for use in die, mold, and stamping tooling applications. It features a trapezoidal wire cross-section wound from chromium alloy steel, which provides a higher load capacity in a compact envelope compared to round-wire springs of the same size. The spring has a 3/4 inch hole diameter, a 3/8 inch rod diameter, and a 2 inch free length. At maximum deflection of 0.93 inches, it delivers a load of 133 pounds. The spring rate is 142 pounds per inch. Color-coded green for light-duty identification, this spring is a standard catalog component for toolroom and press shop inventory.

This die spring is suited for light-duty cycles in stamping dies, injection molds, punch press tooling, and similar precision metal-forming fixtures. The 3/4 inch hole diameter accommodates standard die post and guide pin arrangements. With a compressed length at maximum load of 0.93 inches and a travel to solid of approximately 0.925 inches, it fits standard spring pocket depths used in production tooling. This spring is installed by toolmakers, die setters, and maintenance machinists in manufacturing and fabrication environments.

Key Features

• Trapezoidal wire cross-section for higher load density versus round-wire designs
• Chromium alloy steel construction for fatigue resistance in cyclic loading
• Light-duty rating with 133-pound maximum deflection load at 0.93 inches travel
• Spring rate of 142 pounds per inch for predictable, linear force output
• Green color coding for instant light-duty identification per standard die spring convention
• Meets NAAMS, ISO 10243, and ISO 9001:2015 standards

Compatibility

Designed as a standard replacement or new-build die spring for light-duty tooling applications conforming to NAAMS and ISO 10243 spring pocket and rod diameter standards.

Installation Notes

Die springs are installed and replaced by toolmakers or die maintenance technicians. Always de-energize the press and lock out the slide before accessing the die set. Springs should never be run to solid in normal operation — design the stroke so maximum working deflection stays within the rated travel to avoid premature fatigue failure. Inspect mating guide rods and spring pockets for wear or scoring before installing a replacement spring.