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Published: May 2004      

Ways to play the power game

More and more crane users and crane designers are willing to consider replacing the conventional festoon on a quayside crane with a cable or drag chain. Robert Slater from McKay International Engineers, for example, says that although he has not yet specified a chain in place of a festoon, he considers chains are now a proven alternative and would not dissuade a client from using one.

New chain solution

In the past few years the main thrust for energy chains on large port cranes has come from Igus.The Germany-based company has now developed a new “E4/4 Heavy Duty” energy chain for applications where chain weight is high. Compared to the Series 5050 chains the E4/4 is of a much larger construction. The support area at the stop dogs has been enlarged, sidewall thickness increased from 22mm to 29.5mm and the support area at the pin increased by 120 per cent....


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