Liebherr has unveiled its new LG 1800-1 lattice boom crane for global markets. It is scheduled to be launched in the first half of 2024, replacing the current LG 1750 model.
The LG 1800-1.0 combines the high load capacities of a lattice boom crane with the advantages of a mobile chassis. This new crane can lift up to 800 t – more than its predecessor, the LG 1750, and just as much as its crawler crane counterpart, the LR 1800-1.0. The LG 1800-1.0 also features advanced technologies such as V-Frame, VarioTray, ZF Traxon Torque transmission with ECOdrive, and WindSpeed load charts.
A highlight of the nine-axle LG 1800-1.0 is its chassis. Thanks to the special arrangement of its axles, the crane is suitable for all markets worldwide. With an axle load of just 10 t, the crane can drive on public roads with all four supports and a total weight of 90 t. Alternatively, transport is possible with only two supports and a total weight of 70 t, as well as completely without supports at around 50 t.
In contrast to its predecessor, the eight-axle LG 1750, the folding beams on the new LG 1800-1.0 are not telescopic. The required support base of 13 x 13 m is sufficient for the LG 1800-1.0 to achieve enormous load capacities with the derrick system and good erectable lengths without the derrick system. The fixed supports are easy to attach and detach as Liebherr has installed a quick coupling system. The new crane has one more axle than its predecessor and Liebherr uses the standard axles from the LTM crane product portfolio.
Ideal for wind projects
With a chassis width of just 3.0 m, the LG 1800-1.0 can move easily both on the road and on construction sites and can even cope with gradients of up to 25%. These features are particularly useful when working in wind farms.
The LG 1800-1.0 can adopt the familiar boom systems of the LR 1800-1.0. There is a main boom up to 180 m long as well as a main boom luffing jib combination with up to 108 m of main boom and 102 m of luffing jib, with which a maximum hook height of 208 m can be achieved.
Thanks to optimised wind power boom systems, it is possible to work with a boom of 174 m and an 18-m-long lattice type fixed jib at hub heights of 180 m. The WindSpeed load charts with different permissible wind speeds of up to 13.4 m/s also ensure increased flexibility and safety in gusty operating conditions.
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. The boom systems have the same designation as the LR 1800-1.0.
The 10-t 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.