Cutter Suction Dredger 500 "Conchas" In the last week of 2011, Damen Dredging Equipment delivered the Cutter Suction Dredger 500 'Conchas' to its new owner, the UK-based company Marina and Ports Services. Ordered in mid-October, it took just two months for the standard dredger to be taken from Damen’s stock and customised with a large number of options including a spud carriage pontoon, anchor booms, day accommodation, a harbour generator set, jib crane, stern swivel and more. View the CSD 500 Virtual Tour Download Product SheetSee all deliveries