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Liebherr lattice boom crane combines mobility with crawler crane capacity

A wheeled lattice boom crane with no boom attached sits in front of a sunset.
The Liebherr LG 1800-1.0 lattice boom crane has a unique chassis that allows it to drive on public roads. Liebherr

The new LG 1800-1.0 lattice boom crane from Liebherr combines high load capacities with the advantages of a mobile chassis. As one of the world's most powerful lattice boom cranes on wheels, the new crane can lift up to 800 tonnes, even more than its predecessor, the LG 1750, and matching its crawler crane counterpart, the LR 1800-1.0.

A special arrangement of this unique vehicle's nine axles makes it suitable for all markets worldwide. With an axle load of just ten tonnes, the crane can drive on public roads with all four supports and a total weight of 90 tonnes. Alternatively, transport is possible with only two supports and a total weight of 70 tonnes, as well as completely with supports at around 50 tonnes.

The folding beams on the new crane are not telescopic, in contrast to its predecessor. The required support base of 13 by 13 metres is sufficient for the LG 1800-1.0 to achieve its load capacities with the derrick system and good erectable lengths without the derrick system. This allows fixed supports to be more stable and saves weight. They are also easier to attach and detach, as Liebherr has installed a quick coupling system.

At a chassis width of 3.0 metres, the LG 1800-1.0 lattice boom crane can be moved easily and economically. It is also capable of handling gradients of up to 25 percent. It can adopt the familiar boom systems of the LR 1800-1.0. A main boom of up to 180 metres and a main boom luffing jib combination with up to 108 metres of main boom and 102 metres of luffing jib - offering a maximum hook height of 208 metres - are available.

Thanks to optimized wind power boom systems, for example, it is possible to work with a boom of 174 metres and an 18-metre-long lattice type fixed jib at hub heights of 180 metres. Liebherr WindSpeed Load Charts with different permissible wind speeds of up to 13.4 metres per second ensure increased flexibility and safety in gusty operating conditions.

All accessories from the head section to the lattice type fixed jibs and whip line are identical to the LR 1800-1.0. ten-tonne counterweight plates can be used on other Liebherr crawler cranes, saving costs and possibly reducing transport distances. The only difference from the LR 1800-1.0 is a modified slewing platform that allows longer boom systems to be erected without a derrick.

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