Copper Lug and Its Crimping

Copper lug plays the role of connection and protection of copper wire and the required connection items. And it is a connector used to connect a wire to an electrical device which is widely used in the electrical industry, mechanical equipment factory, shipyard, power distribution cabinet, etc..

The connection between copper lug and the wire is of vital importance regarding its wide range of applications. In order to ensure its connection performance, the crimping connection method is generally used. The most frequently used method is of course the hexagonal crimping--most wiring harness factories are accustomed to using this crimping method. But with the development of new energy charging piles, the requirements of wire harness connection are increasingly high. The use of hexagonal crimping began to decrease because of some of its shortcomings. Meanwhile, the use of four-indent crimping is rising, and is widely acclaimed.

The four-indent crimping technology is originally used in the field of military and aviation, but due to various reasons, this technology has been gradually applied to civilian and industrial fields. The thermal shock resistance of four-indent crimping is better than that of the hexagonal crimping. Because the material of terminal and wire is different which resulting in different thermal expansion and contraction ratio. The life of four-indent crimping is longer than the hexagonal crimping, so does the using times and durability.

The tensile strength of four-indent crimping is higher than the hexagon crimping (at least 30% in the same compression ratio) which resulting in a significant increase in anti-vibration and other performances. It is more obvious in the car. For example, BYD is now using Precisetool TS series four-indent crimping tools. TS series four-indent crimping exerts a lasting contact force to ensure direct tension force between wires and terminals and then to ensure the normal use of the power system in different environments.

Precisetool TS, TSL series four-indent pneumatic crimping machine is in small size, suitable for production-oriented line operation. In addition, there is no load-bearing requirements on the ground. It features energy-saving, long life and totally safe operation of the staff. Because of its adjustable design , it can solve a variety of terminals and wire crimping in a single machine which greatly reduces the management pressure and cost.