The BOS series – Unmatched quality in offshore cranes
Our Liebherr BOS offshore crane series stands out for its exceptional quality, flexible deployment, and compact, function-oriented design. Featuring Liebherr’s in-house Litronic crane control system, the BOS is a top choice among operators and a global leader in the offshore crane market. This state-of-the-art slewing bearing crane with a wire luffing mechanism offers a versatile drive train, available in all-electric, electro-hydraulic, or diesel-hydraulic configurations.
The BOS 2600 in a nutshell
Designed for applications requiring high lifting capacities at medium or long outreach, the BOS is the ideal choice. Take a look at the BOS 2600 together with our colleague on the test stand in Rostock.
Various crane sizes depending on customer needs
| Crane type | BOS 2600 | BOS 4600 | BOS 4600 E | BOS 7500 | BOS 14000 | BOS 35000 | BOS 45000 |
| Max. lifting capacity | 75 t | 140 t | 100 t | 300 t | 600 t | 1,250 t | 1,400 t |
| Boom length | 57 m | 69 m | 69 m | 84 m | 102 m | 102 m | 102 m |
| Slewing radius | 360° unlimited | 360° unlimited | 360° unlimited | 360° unlimited | 360° unlimited | 360° unlimited | 360° unlimited |
| Overturning moment | 2,600 tm | 4,600 tm | 4,600 tm | 7,500 tm | 14,000 tm | 35,000 tm | 45,000 tm |
Key elements of the BOS
Get in touch
Offshore crane performance put to the test
Before our cranes are put into action, they go to the ultimate test: a full-scale performance check. Project manager Raik Wichmann gives a behind-the scenes look at the cranes’ key features, while the team puts them through their paces with precision and power.
Our drive systems for BOS cranes
Liebherr’s electro-hydraulic drive system for the BOS-series, featuring compact closed-loop technology, guarantees proven efficiency and precision. Closed-loop hydraulics minimise energy losses and deliver consistent actuator performance. This enables a very high degree of simultaneous operation of the luffing, slewing and hoisting drives. Seamlessly integrated into our advanced crane control and management systems, the drive offers a powerful, responsive and reliable solution for contemporary handling applications in the offshore sector.
The BOS-series’ hydrostatic drive system is specially designed for operation with low oil volumes, thereby reducing environmental impact and maintenance requirements. This reliability also sets the benchmark for the highest industrial standards in Europe and ensures long-term performance and confidence in demanding offshore environments.
The all-electric BOS offshore cranes are designed to transfer supplies, spares and personnel efficiently from one offshore asset to another. The electric drive system allows smooth operation, precise load control and reduced maintenance requirements, whilst optimising energy consumption. Developed for demanding offshore conditions, they offer consistent performance and long-term operational value. Seamless integration into the energy management system of platforms and ships is possible, ensuring optimal coordination and energy efficiency across all on-board operations.
Our BOS giants
Meet our BOS giants, the BOS 35000 and BOS 45000, engineered to tackle the most demanding heavy-duty applications. With their impressive lifting capacities and exceptional outreach, these cranes are perfect for large-scale offshore projects, ensuring efficiency, reliability, and flexibility. Whether you're installing offshore wind parks or handling massive components for oil and gas platforms, our BOS giants are ready to elevate your operations to new heights.
Areas of application
