Seajacks Announces Zaratan Construction Summary (UK)

Seajacks Announces Zaratan Construction Summary (UK)

In February 2010 Seajacks entered into a contract with GustoMSC to provide the Basic Design Package for two purpose built wind farm installation vessels.

In June 2010 Seajacks entered into a contract with Lamprell shipyard to build these new vessels and Seajacks will take delivery of the first new-build, Seajacks Zaratan, in May 2012, and the additional new-build shortly thereafter.

These self-propelled jack-ups have been designed specifically to service the wind farm installation market in the harsh operating environment of the North Sea, as well as to provide services to the oil and gas industry. The vessels will be a modified version of the MSC NG5500 design, which incorporates a fully redundant DP2 propulsion system, accommodations for 90 persons, and an 800T leg encircling crane designed by MSC.



  •  Completed
  • Paint system completed up to main deck level.

 Spud cans

  •  Completed.


  •  All 4 x starter leg sections installed on board – welding to spud cans completed
  • All leg sections are now complete and delivered to the yard
  • Welding of leg 4, (sections 2/3), and leg 2 (sections 2/3) now complete
  • Welding of leg 3 (section 2/3) now in progress

 Main deck

  •  Complete with exception of:-
  •  Secondary/ tertiary steel now being fabricated and installed
  • Main crane boom block pocket now being installed
  • Mooring equipment now being installed.


  •  Structure complete
  • Insulation, electrical, plumbing, HVAC, and outfitting works ongoing throughout, with 1st level now complete and furniture being installed
  • Helideck pancake – block 44 – installed onboard, awaiting technician to start installation of aluminium Helideck
  • Secondary/ tertiary steel continues being fabricated and installed.

 Machinery foundations

  •  Completed throughout.

 Cable trays

  •  Completed throughout

 Electric cable

  • Installation and termination of all cables ongoing throughout machinery spaces, public spaces and accommodation
  • Most work is now on control / automation cable.

 Machinery installation

  • Installation of all machinery complete with exception of:
  •  Main crane, 2 x auxiliary cranes, 2 x lifeboats, Fast Rescue Boat, emergency anchor winch and clump weight winches.

 Pipe work

  •  Complete with exception of installation of leg jetting system.

 Main 800T crane

  •  Tub collar installed and fully welded
  • All main components onsite except for main hoist wire
  • Currently installing bogies on slewing platform
  • Running in main electrical power cables.

 Jacking system

  •  System is now mechanically and hydraulically complete
  • Continue installing control / instrumentation
  • All 4 x legs have been “stroked”
  • Ready for 1st jacking operation on 27th January.

Electrical work

  •  N.E.S and Kongsberg on schedule
  • Kongsberg consoles installed in E.C.R and on bridge (suppliers service engineers on site)
  • Installing panels in bridge electrical room.

 Auxiliary cranes

  •  Both cranes on site
  • 2 x crane pedestals completed and both installed
  • Cranes to be fitted after load out.


Offshore WIND staff, January 25, 2012; Image: seajacks