Gibraltar DCIB12.5-51 Die Spring Extra Heavy-duty Yellow

Product Description

The GIBRALTAR DCIB12.5-51 is an extra heavy-duty die spring designed for use in stamping dies, punch presses, and industrial tooling applications. Built from chromium alloy steel with a trapezoidal wire shape, it delivers a maximum deflection load of 107 pounds and a spring rate of 144 pounds per inch. The hole diameter is 0.5 inches, the rod diameter is 0.281 inches, and the free length is 2 inches. Maximum deflection reaches 0.74 inches. The yellow color coding indicates extra heavy-duty duty rating per industry standards, making it easy to identify in mixed-spring tooling setups. This part is installed by tool and die makers, press operators, and maintenance machinists in manufacturing environments.

The DCIB12.5-51 is suited for industrial die tooling where consistent, high-load spring return force is required. Typical applications include metal stamping dies, injection molds, stripper plates, and cam units in automated press tooling. The extra heavy-duty rating makes it appropriate for high-cycle or high-force applications where lighter springs would fatigue prematurely. Sold individually, this spring fits installations requiring precise load and deflection specifications.

Key Features

• Extra heavy-duty duty rating with yellow color coding per standard die spring conventions
• Trapezoidal wire shape for higher load capacity compared to round-wire springs of equivalent size
• Maximum deflection load of 107 pounds at 0.74 inches of travel
• Spring rate of 144 pounds per inch for predictable, consistent force output
• Meets NAAMS, ISO 10243, and ISO 9001:2015 standards
• Chromium alloy steel construction for durability in high-cycle tooling environments

Compatibility

Designed as a direct-fit replacement die spring for industrial stamping dies, punch press tooling, and mold assemblies requiring a 0.5-inch hole diameter, 0.281-inch rod diameter, and 2-inch free length with an extra heavy-duty load rating.

Installation Notes

Installation and replacement of die springs should be performed by qualified tool and die technicians or maintenance machinists with the press or tooling fully de-energized and all stored mechanical energy relieved before disassembly. Inspect the mating rod and bore dimensions to confirm fit before installing. Do not compress the spring beyond its rated maximum deflection of 0.74 inches, as over-compression accelerates fatigue and can cause premature failure. Follow applicable plant safety procedures and tooling manufacturer guidelines during service.