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New 4000t vessel for Scaldis

4C Offshore | Lewis Holdsworth
By: Lewis Holdsworth 19/02/2015 Scaldis
The shareholders of the Antwerp-based specialist in  marine heavy lift  operations,  Scaldis Salvage & Marine Contractors NV,  have ordered an extremely powerful,  self-propelled  DP2  crane  ship  from  Royal  IHC.  The  vessel  will  be  operated  by Scaldis.

The contract  for the construction and delivery of the ship was signed on  29th January 2015. The design was drawn up in-house in cooperation with Vuyk Engineering Rotterdam, part of Royal IHC  on the basis of the extensive experience that Scaldis has accumulated hoisting heavy  objects  in  challenging  offshore  conditions.  Delivery  is  scheduled  for  spring  2017  in Europe.  
The  vessel  will  be  built  under  full  responsibility  and  coordination  of  Royal  IHC  in Qidong and finished in Xiamen, both of which are located in the People’s Republic of China.

The ship is ordered  to further  support and  expand  the  services, including the installation of offshore  infrastructures  and  decommissioning-deconstruction  activities  for  the  oil  and  gas industry as well as  the installation of offshore wind farms.  The  ship can also be used for any type of marine related heavy lifting work in challenging situations, such as the construction of bridge components and clearing subsea obstacles.

The provision of a helipad in combination with accommodation for 78 people means Scaldis is capable of providing a varied range of additional services.

A few specific characteristics make this new crane ship unique in its field. It has two Huisman cranes each with a lifting capacity of 2,000 tons, based on a design by Vuyk. The ship also has extra carrying capacity of 3,000 tons. The cranes can be moved by 25m on the ship. This allows the deck to be used to transport and then relocate cargo at a later stage.

The  ship  and  the  cranes  are  an  integrated  design  which  allows  the  maximum  load  to  be hoisted in significant wave heights  of up to 1.5m. In these circumstances, the freeboard is not less than 3 m anywhere on the vessel. In standby or transport modes, significant wave height can be as much as 7.0m.

It is also worth noting that the maximum load can be lifted in water depths of around 5.0m.

The four azimuth thrusters and the DP2 system allow installation  work to be conducted in deeper water without the use of anchors. This guarantees flexibility and efficiency and also means that work can be carried out in zones where many pipelines and cables already lie on the  bed,  for  example.  The  crane  ship  is  also  equipped  with  4  main  working  anchors  and winches and 4 secondary devices.

The powerful and rapid ballast system can follow the hoisting operation exactly, allowing jobs to be completed quickly and continuously. The  ship  will  be  equipped  with  a  so-called  'moonpool'  for  the  purposes  of  operating  a separate ROV (Remotely Operated Vehicle) for inspecting and supervising installation work on  the  seabed.  Finally,  the  presence  of  heavy  fenders  allows  containers  to  be loaded/unloaded at sea.

Supplementary information :
Main characteristics
Provisional name    Rambiz 4000
Type        Self-propelled crane ship
Principal      SCALDIS Salvage & Marine Contractors N.V.
Shipyard      Royal IHC
Length        108.00 m
Beam        50.90 m
Depth        8.00 m
Draught      4.90 m
Speed        7 knots
Hoisting capacity    4.000 Ton
Total installed capacity  10,450 kW
Accommodation    78 people
Special feature    DP2

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