Liebherr-Werk Ehingen has launched a successor to its LG 1750 lattice boom crane: the LG 1800-1.0. Like its predecessor the new model is designed to combine the mobility of a mobile crane with the load capacity of a crawler, comprising a lattice boom mounted on a wheeled crane chassis.

The crane can now lift up to 800 tonnes. This is more than its predecessor and just as much as its crawler crane counterpart: the LR 1800-1.0.

Part of this capacity increase is due to the folding beams it uses. In contract to the crane’s previous model these are not telescopic; this is because the required support base (13 x 13 metres) is sufficient for the LG 1800-1.0 to achieve its load capacities.

The new crane does, however, have one more axle than its previous version, making a total of nine. For these Liebherr is using its standard LTM crane axles.

As a result the crane has an individual axle load of just ten tonnes – making it suitable for use on public roads worldwide.

In situations where even lighter road weights are required the crane has a flexible system enabling the removal of crane support sections.

Carrying just two supports the total transport weight goes down to 70 t; without any supports transport weight is around 50 t. Liebherr has developed a quick coupling system for attaching and removing the supports.

Liebherr hopes the new crane will appeal to those working in the wind sector. For this it has designed the chassis to have a width of just 3.0 metres for greater manoeuvrability and the crane can also tackle slopes with gradients of up to 25 percent.

It also comes with Liebherr’s V-Frame, VarioTray, ZF Traxon Torque transmission with ECOdrive, and WindSpeed load chart technology.  

The LG 1800-1.0 uses a similar boom system to that of the LR 1800-1.0 and can be used with and without a derrick.

There is a main boom up to 180 metres long and a main boom luffing jib combination with up to 108 metres of main boom and 102 metres of luffing jib, with which a maximum hook height of 208 metres can be achieved. Thanks to optimised 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.

The WindSpeed Load Charts, with different permissible wind speeds of up to 13.4 m/s, are designed to provide increased flexibility and safety in gusty operating conditions.

Much of the equipment of the LG 1800-1.0 is compatible with the equipment of the LR 1800-1.0. All accessories from the head section to the lattice type fixed jibs and whip line are identical. All boom systems have the same designation as the LR 1800-1.0. The ten-tonne counterweight plates can also be used for other Liebherr crawler cranes – saving costs and possibly reducing transport distances. The only difference compared to the LR 1800-1.0 is a modified slewing platform that allows longer boom systems to be erected without a derrick.

The new LG 1800-1.0 will be launched in the first half of 2024 with the slogan ‘The legend grows’.