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Damen unveils Multi Cat Water Injection Dredger

Damen Shipyards Group has recently unveiled a Water Injection Dredger (WID), courtesy of a plug & play system aboard a Damen Multi Cat. Such capabilities are typically found only on dedicated platforms, though Damen realised that the Multi Cats forward propulsion and manouevrability made it a suitable platform for this type of dredging.

Damen invented the Multi Cat as the ideal dredge support vessel what I like to think of as floating work bench for Cutter Suction Dredgers (CSD). This is a logical step forward for a platform that has dredging in its DNA, stated Damen Product Director Dredging Olivier Marcus.

The Multi Cat is typically used to assist CSDs on dredging projects, carrying out tasks such as anchor shifting and cutter teeth replacement. Damen realised that, with the addition of dredging components, the Multi Cat might actually be able to take on dredging functionality in a manner that proves the rule the whole is greater than the sum of its parts. In the words of Mr Marcus: This is not just the equipment, this is one plus one equals three.

This is not the first time the Multi Cat has demonstrated such versatility. In the past Damen has already fitted DOP pumps or a plough on the stern A-frame to carry out sand mining and maintenance dredging activities. The Multi Cat WID dredger will take a different approach. By injecting the silt with high volume, but low pressure water, the accumulated soil will become a density flow and by utilising the current and/ or gradient the silt will be removed from ports and waterways including rivers and channels, offering a cost effective, sustainable approach to dredging.

This very straightforward approach applies containers 2 x 40ft for a 500mm system and 3 x 40ft for a 600mm system on board a Multi Cat in a plug & play system that can be applied to an existing vessel for added versatility.

Mr Marcus explains: After foundations are installed, the modular WID system can be attached or removed without drydocking. Whats more, as the system can also be applied to a modular Multi Cat, the WID can be easily transported anywhere in the world even inaccessible, out of the way locations.

The Multi Cat WID Dredger will be fitted with a Damen Dredge Pump a wear resistant piece of equipment that is built to just keep going in the toughest of working environments. Its mechanical seal guaranteeing minimal maintenance requirements.

We have previously customised tugs, fitting them with water injection capabilities in order to carry out port maintenance capabilities. This type of dredging represents an effective solution that, for just a small investment, delivers really significant additional benefits to a platform already well-suited to a diverse range of tasks, Mr Marcus concludes.


2018-03-16

Please see Damen Shipyards Group company electronic office

Damen Shipyards Group operates 32 shipbuilding and repair yards, employing 9,000 people worldwide. Damen has delivered more than 6,000 vessels in more than 100 countries and delivers some 180 vessels annually to customers worldwide. Based on its unique, standardised ship-design concept Damen is able to guarantee consistent quality.
Damen’s focus on standardisation, modular construction and keeping vessels in stock leads to short delivery times, low ‘total cost of ownership’, high resale values and reliable performance. Furthermore, Damen vessels are based on thorough R&D and proven technology.

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