Hexagonal crimping is among the conventional crimp profiles. It is the most frequently used in practice, as it is suitable for both copper and aluminium conductors. In this crimp profile, the individual strands are deformed over a large horizontal area.
Hexagonal crimping is typically used for copper compression cable lugs to DIN 46235 and aluminium compression cable lugs to DIN 46329. This crimp profile can also be used to crimp solid cables.
The clear benefit of hexagonal crimping is in the central force application during the crimping process, which occurs uniformly from all sides and hence acts on a large contact surface. At the same time, the individual strands of the conductor as a whole are uniformly deformed without being damaged.
The result is good mechanical stability and a reliable connection. Thanks to the uniform crimping, hexagonal crimping is also suitable for the medium and high voltage sector.
In addition to standardised hexagonal crimping, so called manufacturer-dependent hexagonal crimps are also permissible for copper applications in conductor classes to DIN 60228 Class 2. They are developed specifically for the tubular cable lugs offered. Therefore, it is very important that one manufacturer-specific system is always used.
You can use narrow or wide crimping, depending on the tool. This depends largely on cross-section and the tool force. Narrow crimping, for example, is suitable for a 300 mm² tubular cable lug with a six tonne battery-powered hydraulic tool. However, this requires multiple crimps, which of course involves additional time. The purchase of a tool must therefore be carefully selected and matched to the range of applications.