Tratos has won what it claims is the largest order in the world for reeling cable for high speed cranes. The Tratosflex-ESDB cable is to be used for 38 ZPMC cranes at the latest Busan New Port terminal in Korea.
The cable manufacturer said the Tratosflex-ESDB is ideal for container cranes operating at speeds up to 300 metres/min because it has been designed to combat the common problem of twisting that affects cables reeling at high speed. Twisting makes cable cores elongate unevenly which in turn leads to conductors on the outer layer of a strand facing a greater risk of being broken. A broken cable reeling at high speed is dangerous and can cause extensive and costly damage to equipment.
Tratos said the internal cable design of Tratosflex-ESDB differs from other reeling cables because its structure has been tightened against the internal relative movement to accommodate high speed applications. A medium voltage rubber insulated and sheathed drum reeling cable, Tratosflex-ESDB can operate in temperatures from -20C to +60C.
The company added that Tratosflex-ESDB has undergone extensive research both in laboratory and simulated working conditions and has been used in many high speed container cranes across the world.
