Gibraltar DCIB20-51 Die Spring Extra Heavy-duty Yellow

Product Description

The GIBRALTAR DCIB20-51 is an extra heavy-duty die spring engineered for high-load tooling and stamping applications. It features a 3/4 inch hole diameter, a 3/8 inch rod diameter, and a 2 inch free length. Constructed from chromium alloy steel with a trapezoidal wire profile, it delivers a spring rate of 839 lb per inch and a maximum deflection load of 466 pounds over a maximum deflection of 0.56 inches. The yellow color coding identifies the extra heavy-duty load class at a glance. This spring is typically installed by tooling engineers, maintenance technicians, and die setters working in stamping, press, and industrial manufacturing environments.

The DCIB20-51 is suited for use in die sets, molds, and mechanical presses where consistent, high-force return action is required. Its trapezoidal wire cross-section maximizes load capacity within a compact envelope, making it a practical choice for tight-tolerance tooling applications. The yellow color designation follows the industry-standard duty classification system, allowing fast visual identification during die maintenance and changeover.

Key Features

• Extra heavy-duty load rating with a maximum deflection load of 466 pounds (2073.70 N)
• Spring rate of 839 lb per inch for consistent force output under compression
• Trapezoidal wire shape for higher load capacity relative to round-wire springs of the same envelope
• Chromium alloy steel construction for durability in repeated high-cycle press applications
• Yellow color coding for instant duty-class identification per industry convention
• Compliant with NAAMS, ISO 10243, and ISO 9001:2015 standards

Compatibility

Designed as a standard-dimension replacement die spring conforming to NAAMS and ISO 10243 specifications, suitable for use in compatible die sets and tooling systems requiring a 3/4 inch hole diameter, 3/8 inch rod diameter, and 2 inch free length extra heavy-duty spring.

Installation Notes

Installation is typically performed by tooling technicians or maintenance personnel during die assembly or preventive maintenance. Ensure the press or tooling is fully de-energized, depressurized, and mechanically blocked before removing or installing springs. Verify that the rod and hole clearances in the die set match the spring dimensions before seating. Do not compress the spring beyond the rated maximum deflection of 0.56 inches to avoid permanent set or premature failure.