Energy chains have been gaining momentum in the past 3-4 years as alternatives to festoon systems, originally on yard cranes but increasingly on ship-to-shore container cranes as well. Igus, for example, states that there are now 125 ship-to-shore cranes and 1200 RTGs/RMGs with its chains installed or on order worldwide.
Nearly all these quay cranes have rope drive trollies, with resulting light cable packets, but last year Igus introduced the HD (heavy duty) version of its Rol-E-Chain design for full machinery trolley cranes. The architecture is the same but it has larger support areas at the stop dogs, thicker side walls and bigger pin support areas. Other developments from Igus include a new fibre optic cable with thinner overall diameter and a new jacket material....
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This complete item is approximately 3205 words in length, and appeared in the January 2005 issue of WorldCargo News, on page 25.
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