The BOS crane is a conventional slew bearing type, rope luffing crane with lattice boom. This type of crane is available in different sizes and lifting capacities of up to 1,200t. The maximum boom length for this crane is 102m, which is required for offshore wind park installation.
Since the beginning of offshore technology, Liebherr has been involved in the development of appropriate cranes for offshore applications and today is the technology leader in this segment.
Today, offshore is one of the most innovative and technologically demanding industry segments. The constant increase in worldwide energy demands and the development of ever more demanding sea beds go hand-in-hand with the advancement of crane technology. These demands have lead to considerable changes in the requirements and possibilities of our cranes.
Besides being used on oil and gas platforms, Liebherr cranes are also used in other applications, including subsea work and installation of offshore wind turbines, for handling remote controlled underwater vehicles, or for installing pipelines and telecommunication cables offshore.
Offshore deployment requires efficiency, reliability and a high degree of safety. Liebherr offers versatile offshore crane types in various sizes to achieve this. This embraced all series of board offshore cranes (BOS), mast-type cranes (MTC), crane around the leg (CAL), ram luffing (RL) cranes and ram luffing, knuckle boom (RL-K) cranes.
Liebherr’s range of crane technology includes diesel and electric drive units, explosion safe and suitable for use in temperatures to -50°C or special lifting heights to 2,000m under the sea. Liebherr has in its product palette rope luffing cranes and ram luffing cranes. Cranes with slew bearings or mast type cranes are also available.
Liebherr offshore cranes are user-friendly and offer easy maintenance, as well as reliability and quality standard.
Areas of application
The product range of offshore cranes from Liebherr is designed for a wide variety of deployment such as heavy lifts, oil and gas industry or pipe handling and subsea operations and designed for many different types of installation.
Heavy lift operations
Heavy lift deployment, such as operations involving the erection of wind parks or the assembly of oil rigs, require the highest level of precision and safety. Liebherr offshore cranes are designed especially for these challenging tasks.
With decades of experience in development and construction, Liebherr has designed a heavy-duty crane for a load bearing capacity of up to 2,000t.
For example, the CAL is designed in particular for jack-up vessels. These vessels can drive to their deployment site with their own drive system and support themselves there on the sea bed with the aid of four lowerable mainstays.
As its name suggests, the CAL is installed around one of the legs. Furthermore, the parallel jib can also be placed over one of the legs. In this way, the maximum loading area on deck is available despite the size of the crane.
Cranes for the oil and gas industry
Liebherr offshore cranes are deployed for the assembly, repair and supply of oil and gas extraction systems. The performance capacity, size and also the way the cranes are constructed varies according to the respective requirements profile.
The Liebherr RL crane is designed as a compact and weight-optimised crane for jack-up rigs or smaller and unmanned platforms and is used primarily for support or maintenance tasks.
Cranes of the BOS-series are mainly installed on floating installations where larger boom lengths and higher loads are needed.
Pipe handling and subsea operations
Setting-up oil and gas extraction systems underwater requires the use of specially equipped cranes. For this area, Liebherr offers the RL-K crane with special pipe handling and subsea equipment.
The subsea crane can be used to support all necessary tasks such as setting-up or dismantling conveying equipment, repairs or activities onboard.
Crane management systems
The one-of-a-kind crane management system, Litronic, developed by Liebherr, allows monitoring and controlling of all crane functions and supports an outlook on preventive maintenance strategies through recording load cycles and machine data.
Innovation and quality
Components for building a Liebherr offshore crane are only used after they have been installed in the field and have gone through an extensive qualification process. New developments concentrate on the advancement of existing systems and solutions considering market specific requirements and technological developments.
With this strategy, Liebherr will continue to strengthen and expand its position in the offshore sector.
The Liebherr offshore crane CAL is designed especially for installation as a crane around the leg on jack-up vessels and enables a rotation of at least 460°. It is deployed primarily for heavy lift construction and maintenance work
The MTC an offshore crane with rope luffing system and lattice boom, has a non-metallic slew bearing and is based on the kingpost principle. This type of crane is available in different sizes and lifting capacities up to 150t. The maximum boom length for this crane is 72m and is suitable for both floating and fixed applications offshore.
A weight-optimised and compact design with a load bearing capacity up to 100t make the ram luffing crane (RL) from Liebherr an ideal piece of equipment for small and unmanned platforms or floating storage vessels.
The ram luffing knuckle boom (RL-K) crane series from Liebherr was developed especially for the oil and gas industry. The unique design of the knuckle boom reduces the working radius and increases the flexibility of the crane. This type of crane is available in two different sizes and lifting capacities of up to 300t.
Liebherr offshore cranes are modern, sophisticated machines that benefit from the experience gained during many years of design, development and operation in the most severe environmental conditions.
Liebherr offshore’s crane division is pleased to announce the launch of its innovative new manipulator system, which features a safety working load of 100t.
Liebherr subsidiary Liebherr-Argentina S.A. is pleased to announce that its new office in the Argentinian capital Buenos Aires was successfully opened in March.
Liebherr's maritime manufacturing plant in Rostock, Germany has won a deal to supply a heavy-lift crane for the Orion, a wind farm installation and platform decommissioning vessel currently in development.
Yesterday, the US Ambassador to Germany, John B. Emerson, has visited Liebherr MCCtec Rostock. The visit centred around an exchange of information on the importance of the North American market for the maritime industry.
Liebherr Maritime Cranes offers a comprehensive range of innovative offshore cranes.
Liebherr Offshore Crane Division has almost completed another project with long-term partner TOTAL. Three state-of-the-art ram luffing knuckle-boom cranes of the type RL-K 4200 will be delivered for Total's Egina floating production storage and offloading (FPSO) vessel.
Liebherr Maritime Cranes is pleased to announce that Mr Gordon Clark has been appointed new sales director offshore cranes with the effect from 1 April 2015.
Last September, the test bed in Rostock was the stage of a spectacular single lift of the RL-K 7500 subsea crane. The same crane was now loaded and shipped to the South Korean customer.
Liebherr's offshore crane division recently has signed a ground-breaking contract with its long-time partner Dalian Shipyard (DSIC Offshore). Two state-of-the-art ram luffing knuckle boom cranes of the type RL-K 4200-100 LIT will be delivered for the new high-level semi-submersible 'BT 4000'.
Liebherr offshore cranes set a historical record in terms of annual deliveries, supplying as many cranes a year as never before.
On the premises of Liebherr in Rostock, Germany, a remarkable single lift of the new RL-K 7500 subsea crane recently took place in the course of its loading for shipment to Asia. The lift was executed by four Liebherr cranes.
The Liebherr heavy lift offshore crane series consists of machine types with lifting capacities from 300t to 3,000t. The machine types are BOS 7500, BOS 14000, BOS 35000, BOS 45000, MTC 78000, CAL 45000 and CAL 64000.
In June this year OOO Liebherr-Russland and OOO Lukoil-Kaliningradmorneft signed a contract for a new combined mobile harbour and offshore crane to be delivered by the end of 2012.
Liebherr-Werk Nenzing celebrated its 35th anniversary on 28 September - 1 October 2011.
At the beginning of September, Liebherr delivered the second heavy lift offshore crane type MTC 78000 straight from its manufacturing plant in Rostock. The MTC 78000 is one of the biggest offshore slewing cranes worldwide. With a maximum dynamic torque of 78,000mt, the MTC 78000 is the most power
Liebherr, the leading offshore crane company, is pleased to announce that they will be exhibiting at Offshore Europe 2009 in Aberdeen from 8-11 September 2009. Since the beginning of offshore technology, Liebherr has been involved in the development of appropriate cranes for offshore
At the end of June, Liebherr delivered the first heavy lift offshore crane type MTC 78000 straight from its manufacturing plant in Rostock. The MTC 78000 is one of the biggest offshore slewing cranes worldwide. With a maximum dynamic torque of 78,000mt, the MTC 78000 is the most powerful machine