There is a substantial market for fixed frame spreaders, particularly in lower volume terminals and those that rely on geared vessels or deal with a high proportion of either 20ft or 40ft containers. Several engineering companies are active in this "niche" area of the market.
Celtec Engineering of Australia produces the "Seaport" spreader, a lightweight fixed frame that features a mechanical locking system that, unlike most fixed frames, operates off the slings and not a centre-pull cord. Celtec's target market is ports with limited cargo handling facilities for which cost and tare weight are prime considerations....
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Approx 450 words from WorldCargo News, February 2001,
page 28.