Boskalis’ Bokalift 2 conversion

Project 18062 Boskalis Bokalift 2 (6)

4000 ton crane vessel

To strengthen its position in the renewables market, Royal Boskalis Westminster N.V. decided to succeed the Bokalift 1 project with the conversion of its next crane vessel Bokalift 2. This vessel was originally build as drilling vessel and was found to be a perfect starting point for a crane vessel conversion.

The conversion scope includes the fabrication and installation of steel sponsons on both sides of the vessel to increase the stability. On top of that a new work deck is fitted, designed for high allowable deck loads from various cargo types. A 4000 ton crane was installed on the vessel, with the capacity of lifting structures more than 100 meters high.

The vessel is converted at the shipyard Drydocks World in Dubai. After that the Bokalift 2 will be deployed for the first time at the Changfang and Xidao offshore wind farm project in Taiwan. The project includes the transportation and installation of 62 three-legged jacket foundations and the accompanying 186 pin piles.

Design Scope

  • Basic design vessel conversion, including integration of the offshore mast crane
  • Yard assistance during the building stage