Suction mooring rises to the challenge

Cavotec adapted its MoorMaster system to deal with variations of up to 14 metres.
Industry Database

Two special versions of the MoorMaster suction anchoring system have been designed by Cavotec, one that has to deal with a massive 14 metre drop on an inland waterway, and another which deals with repetitive flooding.

Cavotec's Canadian version - adapted to cope with a 14 metre drop rather than the usual four metre surge limit - has won a second order from the St Lawrence Seaway Management Corporation (SLSMC). This design uses rails to run the suction head up and down the side of the quay.

The SLSMC, which runs the trade link between the Great Lakes and the Atlantic Ocean originally ordered two MoorMaster units which underwent testing in 2007 and 2008. This new order will see Cavotec deliver two new systems and retrofit the two existing units.

The Australian version is destined for the typhoon ridden, iron-ore handling Port Hedland. These units will be embedded into the quayside rather than positioned on the dock in contrast to most other existing installations, and will be able to remain effective even when flooded. Further, the vacuum pads are designed to cope with the especially abrasive nature of iron-ore dust.

Under the contract, Cavotec will supply 14 MoorMaster units for the PHPA's iron ore facility. The systems will service vessels at the port's Utah Point berth. Cavotec will also provide commissioning and on-site training support. If the initial 14 units prove successful, additional MoorMaster systems could be installed in PHPA's No. 1 berth.

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