How To Achieve Dual-point Crimping On Cable Terminals Effectively？

Achieving a secure electrical connection requires precision, especially when utilizing dual-point crimping methods on heavy-duty cable terminals. This mechanical jointing technique ensures long-term conductivity and mechanical strength, preventing localized overheating under high-current loads. While many technicians assume there is only one standard procedure, several distinct configurations exist to accomplish this specific mechanical bond.

Multiple Forms of Dual-Point Crimping

A double-point compression does not follow a single formula. Depending on the tooling and the design of the cable terminals, professionals use different geometric deformations to secure the conductor.

Inline Double Indent Crimping

This form utilizes a standard hydraulic tool to press two distinct indents sequentially along the barrel axis. It optimizes contact resistance inside cable lugs, ensuring no air gaps remain between the stranded copper wires.

Hexagonal and Indent Combination

Some industrial applications require a hexagonal compression combined with a central point indent. This dual-action method provides excellent pull-out resistance for wire lugs while maintaining a compact outer profile suitable for tight distribution boards.

Technical Specifications for Optimal Compression

Executing a Flawless Two-Point Mechanical Joint

To ensure maximum conductivity and structural integrity, specific execution steps must be followed precisely during installation.

1. Select Correct Tooling Dies: Match the die set exactly to the cross-sectional area of the electrical lugs being installed.

2. Execute First Compression: Position the tool closest to the inspection window of the terminal lugs, leaving a slight clearance from the transition zone.

3. Apply Second Pressure Point: Perform the second compression nearer to the barrel entry to seal the wire jacket against moisture ingress.