The telescopic boom can be extended with a swing-away jib measuring between 10.8m and 19m. Two lattice sections measuring 7m each are also available, and can be fitted between the telescopic boom and the swing-away jib in order to increase the pining point of the jib, which can be luffed at up to 40 degrees. The swing-away jib is also optionally available with hydraulics. The jib can be luffed between 0 and 40 degrees under a full load.
Liebherr added: “The LTR 1100 offers the additional benefit that high loads can be telescoped using the boom, a task that is not possible in principle with lattice booms.”
A primary application of the LTR 1100 telescopic crawler crane is the erection of pre-assembled units.
Liebherr again: “Erection tasks in two-hook operation can be carried out using the 2.9m erection jib and a second hoist gear. Loads can be removed from a low loader, swivelled into the correct position and then moved to the site using the crawler.”
The crane is driven by a Liebherr four-cylinder diesel engine, which has an output of 149kW/202hp at 1,800 rpm and a torque of 891 Nm at 1150 rpm. The winches afford a high rope tension of 88kN, thereby ensuring fast work cycles.
The crawler chassis is telescoped hydraulically to a width of 5.05m for crane work. The crawler tracks are 900mm wide, and are fitted as standard with triple grouser track pads. Flat track pads are also available as an option.
Two suspended blocks weighing 7.5t each are secured to the crawler centre section as a central ballast. The maximum ballast on the superstructure is 32.3t.
The crane cabin can be tilted backwards up to 20 degrees to give the operator a better view to the load. The LICCON monitor in the dashboard is the visible module of the LICCON computer system, which, as in Liebherr’s LTM cranes, is responsible for control, information and monitoring functions. Options include air conditioning, CD/radio, and lights for illumination of the working area.
