Mammoet has completed the assembly of its PTC210-DS ring crane in Rotterdam, which is one of the largest cranes in their fleet, adding a new giant to Rotterdam’s skyline. 

Weighing 210,000tm and with a maximum lift capacity of 3,200t, this crane will be used for a heavy-lift project by GustoMSC. It will specifically replace cranes on two offshore wind installation jack-up vessels, Wind Orca and Wind Osprey, for Cadeler.

Erected in Mammoet’s own yard in Schiedam, Netherlands, the Mammoet PTC210-DS is one of five 5,000t class ring cranes in its fleet, and the only one currently operating in Europe. One of the largest cranes in the world, the height and size of the PTC210-DS belie its greatest strengths – its versatility and ability to operate in areas where space is limited.

Dirk Knoester, Senior Adviser at Mammoet, said, “The PTC210-DS is the perfect crane for this job. It has a relatively small footprint combined with 360 degrees slewing, and the possibility to switch between fixed and luffing jib mode (as only the PTCs can) resulting in the largest possible working area.”

“These PTC cranes can also be assembled in numerous configurations and thus a tailor-made configuration is feasible for any job: different main boom and jib lengths, fixed or luffing jib, different amounts of counterweight and two ring diameters,” Knoester said.

The PTC210-DS will be used to remove the existing leg cranes from both jack-up vessels and replace them with new GustoMSC high-capacity ones. GustoMSC has been contracted by Cadeler to design, fabricate, deliver, and install the cranes.

The new leg cranes are fully electric driven and have a 1,600t lifting capacity, making them ready to install and service next-generation wind turbines with capacity ratings exceeding 14MW.

Remco Zandstra, Senior Commercial Manager at Mammoet, said, “The decision to have the PTC210-DS constructed in our own yard in Schiedam was driven by safety and optimizing the schedule for our client. Our yard has a unique location in the port of Rotterdam, and this gave us the possibility to position the crane between the two vessels and serve them at the same time.”

The replacement work on Wind Orca and Wind Osprey is scheduled to commence in the third quarter of 2023 and is expected to be completed by the first quarter of 2024.

With GustoMSC and Mammoet neighbours, this project marks a unique collaboration in Schiedam and a great opportunity for their engineers to witness it live from their offices.