The 100th 750 tonne LTM 1750-9.1 mobile crane left Liebherr’s plant in Ehingen in July. It was handed over by Belgian Liebherr dealer Van Der Spek to crane contractor Dufour Transports et Manutention SA based in Marquain, Belgium.
The key feature of Liebherr’s nine-axle machine is that the entire telescopic boom can be conveyed on public roads.
As well as hiring crawler and mobile cranes, Dufour also provides logistics, heavy haulage and construction engineering services. Orders from the wind power sector have increased enormously over the last few years. This led to the decision to invest in another large mobile crane.
For its first job, the LTM 1750-9.1 travelled to Aisne in France where it helped to erect a 2.75 Megawatt wind turbine. Its compact dimensions and massive hoisting capacity were major benefits for this job.
There are 59 units of the LTM 1750-9.1s in Europe, 22 in America, 16 in Asia, two in Africa and one in Australia. The machine features the latest mobile crane technology and includes Liebherr innovations such as VarioBase and Eco Mode.
With a maximum axle load of 12 tonnes, the LTM 1750-9.1 can carry its 52 metre telescopic boom, front support outriggers, an auxiliary support cylinder at the rear and a complete hoist winch.
With its Y-type boom guying system and a very wide range of lattice jibs, the LTM 1750-9.1 has a large number of boom systems. These enable it to achieve hoist heights of up to 154 m and radii of up to 112 m. The luffing lattice jib can be assembled in 3.5 m stages up to a total of 91 m.