1000 EC-B 125 Litronic enables a completely pre-assembled rotor to be installed

The largest Liebherr tower crane model the 1000 EC-B 125 Litronic made it possible to lift a completely pre-assembled rotor, with a diameter of 113m, for a new wind turbine in Deining, Bavaria. The flat-top crane with a hook height of 155.5 m hoisted the assembly weighing almost 70 tonnes to a height of 142.5 m.

World premiere: 1000 EC-B 125 Litronic

Liebherr tower crane enables a completely pre-assembled rotor to be installed

Liebherr tower crane enables a completely pre-assembled rotor to be installed

Liebherr tower crane enables a completely pre-assembled rotor to be installed

The wind farm in Deining in the Rural District of Neumarkt in Upper Palatinate is one of the leading producers of wind energy in Bavaria. The hybrid tower at the Deining wind farm was fitted with a new turbine wheel. The job was carried out using a Liebherr 1000 EC-B 125 Litronic tower crane (load capacity:125 tonnes) the most powerful tower crane that Liebherr has in its portfolio.

The 1000 EC-B 125 Litronic, was specially designed for the erection of wind turbines. Even with strong winds the performance of the Liebherr crane allowed for the safe, fast and precise installation of the pre-assembled rotor. One of the advantages was that the Liebherr EC-B 125 Litronic with its variable crane drive and with the MICROMOVE function allowed for the precise and pin point positioning of the heavy load.

Challenge and Solution

To minimise the required crane surface at the construction site, the flat-top crane was integrated in the foundation of the wind turbine. As a result less forest area had to be cleared.

To achieve the required maximum lifting height of 155.5 meters, simple bracing of the crane to the tower of the wind turbine was all that was required. The installed foundation can also be used for future service and maintenance work by smaller cranes.

Transport and assembly

Precise lift of a pre-assembled rotor weighing 70 t to a height of 142.5 m

Precise lift of a pre-assembled rotor weighing 70 t to a height of 142.5 m

As the machine does not require oversize hauling equipment, transport is comparatively easy, which represents an additional key advantage of this huge crane. In project discussions this advantage played a key role in the decision, as the Deining wind farm is located in a difficult-to-access section of the forest.

Close cooperation and individual customer solutions

“The wind energy experts at Max Bögl Wind AG worked closely with our expert 'Tower Crane Solutions' team on this project", said Thorsten Hesselbein, Manager of Tower Crane Solutions at Liebherr-Werk Biberach GmbH. "It is particularly important for new challenges like this unique installation job that customers can rely on the wide-ranging expertise at Liebherr”.

EC-B Flat-Top cranes at a glance

The Flat-Top EC-B cranes feature simple, practical erection. Fitted with powerful drive units, these Flat-Top cranes deliver bespoke solutions. Product overview of Flat-Top cranes

Video

A tricky crane job in detail: Set-up work in a constricted space, a suspended erection of the lattice jib and crane movements with millimetre precision. An LTM 1750-9.1 dismantles a suspended scaffold on Cologne Cathedral.
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A Liebherr tower crane recently erected a wind turbine in the Prechtaler Schanze Wind Farm in the Black Forest. With a hub height of 149m and a blade diameter of 115m, it is the largest turbine ever to be erected using this crane. Open video
A tricky crane job in detail: Set-up work in a constricted space, a suspended erection of the lattice jib and crane movements with millimetre precision. An LTM 1750-9.1 dismantles a suspended scaffold on Cologne Cathedral.
We need your consent This YouTube video is provided by Google*. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google. By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time expressly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide suitable safeguards to protect your data and offset this shortcoming. Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, criminal prosecution or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective means of redress being available to you. You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy. *Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Irland; Mutterunternehmen: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA

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