Marine aggregate dredger
Damen Shipyards Group
Between 35m and 60m
Damen Shipyards Group’s Marine Aggregate Dredger 5600 (MAD 5600) is a next-generation dredging vessel that can be used for mining sand and gravel in deep waters. The dredger is capable of extracting sand and gravel from the sea beds as deep as 60m.
Damen unveiled the design concept of MAD trailing suction hopper dredgers (TSHD) line, including MAD 4000 and 5600 vessels, in November 2016.
Cemex UK Marine placed the order for the first MAD vessel in March 2018. Construction on the vessel began at Damen Shipyards Galati in Romania in July 2018. Scheduled to be delivered in 2019, the vessel will have a life expectancy of up to 30 years.
MAD 5600 design and equipment
The optimised hull design of the dredger incorporates an enclosed bow shape to ensure it remains operational in harsh weather conditions. The industry-proven design delivers excellent seakeeping performance.
MAD 5600 is classified by Lloyd’s Register, which also supported Damen during the design concept stage. The design also complies with the Lloyd’s Register ECO notation regulations.
The vessel will have an overall length of 118m, a moulded beam of 22m, a draught of 6.95m and a moulded depth of 9.1m. The dredging deadweight of the vessel will be 9,850t and hopper volume will be 5,600m³.
MAD 5600’s deck will be fitted with two electrically driven anchor mooring winches with warping heads. An electric capstan with 5t pulling capacity and a 5t telescopic deck crane will also be installed.
The dredger can be optionally fitted with additional equipment and systems based on the requirements of customers. It can be installed with a self-emptying system and other types of dry unloader, bottom door system and spud poles.
Dredging system on board MAD 5600
The dredger will feature a trailing suction system integrating a 750mm trailing suction pipe, a 1,750kW submerged dredge pump, two telescopic overflow systems, and a dredge tracking and indication package.
The loading system on board the vessel will include a screening installation with two modular screen decks. The towers will ensure material classification with minimum wear.
The discharge system will contain one automatic grab dry unloading system with 1,500m³ mean discharge capacity per hour and a 27m boom conveyor at 270°.
It will also be installed with a jet water system, including an electrically driven pump with a transfer capacity of 2,500m³/h at 8bar pressure.
Accommodation and tank capacities
MAD 5600 will be able to accommodate 14 people in single cabins, which will comply with the Maritime Labour Convention (MLC) standards. All the cabins will be equipped with internet, telephone, and television systems.
The vessel will also feature other spaces, including an office room, meeting room, day room and a gymnasium.
MAD 5600 will have the capacity to carry 760m³ of fuel oil, 60m³ of potable water and 16m³ of sewage.
Navigation and communications
The dredger will be equipped with X-band navigation radar, S-band radar, electronic chart display and information system (ECDIS) and autopilot.
The communication will be complemented by the area A3 global maritime distress and safety system (GMDSS).
MAD 5600 propulsion
The propulsion system of the vessel will integrate two medium-speed main engines with a power rating of 3,300kW each.
MAD 5600 will also feature two 3,000mm controllable pitch propellers (CPPs) and a 700kW bow thruster.
The auxiliary equipment of the vessel will include two 2,200ekW generators and a 348ekW emergency / harbour set.
The propulsion system will ensure a speed of 13.7k at summer draught.