LTM 1750-9.1 mobile crane completes wind farm lift

By Ian Vallely11 February 2016

A Liebherr LTM 1200/1 provided support services acting as an auxiliary crane

A Liebherr LTM 1200/1 provided support services acting as an auxiliary crane

Heavy load contractor Kran Saller GmbH based in Deggendorf in Bavaria has erected five wind turbines at a wind farm in Dagebüll, Germany, near the Danish border using a Liebherr LTM 1750-9.1 nine-axle mobile crane.

Each wind turbine, manufactured by Senvion, has a capacity of 3.4 Megawatts. Seven components had to be installed on each turbine. The heaviest component at 61 tonnes was the rotor star which had to be installed at a hub height of 80 metres.

The LTM 1750-9.1 hoisted this load to a hook height of 90 m with a radius of 20.5 m. To tackle this job, the 750 t mobile crane was equipped with telescopic boom guying, a 15 m V2 telescopic boom extension, a 35 m luffing jib and 144 t of ballast.

The crane is increasingly replacing the legendary Liebherr LG 1550 lattice boom mobile crane for such work which was (and sometimes still is) used to erect and dismantle turbines.

Saller operates 29 mobile cranes, mostly supplied by Liebherr.

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