World’s largest reeling cable order for cranes goes to Tratos

Cable manufacturer and supplier Tratos Ltd. has won the largest order in the world for reeling cable for high speed cranes. The Tratosflex-ESDB cable is being used in 38 ZPMC cranes at the latest Busan Port terminal in Korea.

Busan Port is the world’s fifth busiest container port and largest trans shipment port in North East Asia. The Port uses state-of-the-art facilities to enable it to handle more than 13 million TEU annually through active exchange with 500 ports in 100 countries, including the latest generation high speed container cranes.

Tratosflex-ESDB is ideal for container cranes such as these, which operate at speeds up to 300m/m, as 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 face a greater risk of being broken. A broken cable reeling at high speed is dangerous and can cause extensive and costly damage to equipment.

Tratosflex-ESDB is different from other reeling cables available in that Tratos engineers have modified the internal cable design, tightening the structure against the internal relative movement to accommodate high speed applications. A medium voltage rubber insulated and sheathed drum reeling cable, Tratosflex-ESDB operates in temperatures from -30ºC to +60ºC.

As you would expect from one of the world leaders in cable manufacture, Tratosflex-ESDB has undergone extensive research both in laboratory and simulated working conditions.

Tratosflex-ESDB has been used in many high speed container cranes across the world, but Korea’s Busan Port is not only the largest contract for this cable type for Tratos, but is believed to be the largest single order in the world today for reeling cable for cranes.

Tratosflex-ESDB is one of the range of cables for moving applications from Tratos, which include mono-spiral and multi-spiral reeling, basket reeling, festoons and spreaders. The cables can supply power, control and signalling functions including fibre-optic cables and components.

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