OFFSHORE (PT 2) Ӏ SECTOR SNAPSHOT
The BOS 4200 has an outreach of up to 72 metres
The BOS 7500 is well-suited for service vessels used in installation and repair work
standard: a clear separation between the A-frame and the machinery house, replacing the earlier design where the slewing platform featured an integrated drive system and a top-mounted A-frame. The redesign enhanced serviceability
and created a solid foundation for future technological integration. In 2005 also the Litronic control system
was added – initially as a card-based setup, then in fully-enclosed shock- and water- resistant units.
The latest generation offers higher computing power, expanded functionality, and multiple confi guration options. The BOS series currently spans models from the compact BOS 2600 all the way up
The BOS 35000 is designed for heavy-duty lifting at great heights
to the heavy lift BOS 35000 and BOS 45000 at the upper end of the range, which are engineered to tackle the most demanding offshore applications. The BOS 35000 has a lifting capacity of 1,200 tonnes and is purpose-built for offshore wind-farm installation and large-scale oil and gas infrastructure. The BOS 45000 pushes these boundaries even further, offering up to 1,400 tonnes of lifting power and an outreach exceeding 100 metres. “The BOS series has proven itself over
decades of offshore use,” says Stefan Schneider, head of sales, general purpose offshore cranes and global project business. “We have refi ned the concept over the years, but the core strengths have remained.”
Sales of cranes in the range continue: In February Liebherr agreed delivery of a BOS 45000 to Eunsung O&C, headquartered in South Korea. The crane will be installed on the jack-up barge Vega for work on offshore wind turbines. Two Liebherr BOS 4200 cranes, of lifting capacity 44 tonnes and 64 metres outreach, were delivered in 2025 for a fl oating production unit [FPU] being built by HD Hyundai Heavy Industries in South Korea for eventual service in the Gulf of Mexico. One of the cranes is equipped with a tugger winch system, which allows optimisation of the minimum working radius. The cranes were built at Liebherr’s Rostock facility on the Baltic and left there fully assembled, which is a major advantage that streamlines the installation process. The fi nal destination for the BOS cranes is the Trion fi eld in the Gulf of Mexico. And Liebherr supplied two BOS 4200 board offshore cranes and one Mast Type Crane 78000 (MTC) for Petrodec’s jack-up vessel Obana, a vessel which represents a new benchmark in offshore decommissioning. The self-elevating heavy-lift jack-up is an innovative rebuilding of two existing platforms and a newly constructed mid-section. To support its complex lifting operations in the North Sea, Obana is equipped with two BOS cranes and an MTC 78000 offshore crane from Liebherr. The Obana project began in 2021. In November 2024 the mid-section arrived in the Netherlands, and the MTC crane, with a safe working load of 2,000 tonnes, was installed. Each of the BOS cranes has a safe working load of 60 tonnes and a boom length of 70 metres.
42 CRANES TODAY
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