Liebherr installs 3-MW wind power plant
Karl Hartinger Kranbetrieb GmbH & Co. KG in Warb u r g - Ri mbeck, North Rhine-Westphalia, Germany, relies on 1,200ton telescopic cranes from Liebherr. For lifting tasks that are usually carried out using lattice boom cranes, Hartinger uses the strong, flexible LTM 11200-9.1 and LTR 11200 telescopic cranes. In particular, in the installation of wind power plants, this has proved to be very practical.
Recently, Hartinger used the 9-axis LTM 11200-9.1 in Preussisch Oldendorf to install the 3MW Enercon E-101 wind energy plant. The heaviest part, the machine housing, had to be mounted at a hub height of 99m. The gross load including the lifting gear and hook block came to a total of 66.5 tons. The telescopic boom with Y-pattern guying was
extended out to 82m in length and a 31.6 m lattice jib mounted on it.
The hydraulically luffable top part, the 6.5m long luffing lattice jib, also came in handy for this job. Crane operator Tjerk Thomiczek enthused: “The hydraulically luffa-
ble lattice jib is unbeatable on this crane, because I can set up the entire E-101 from a single position. I never have to reposition – that's a huge advantage. Over the course of the installation, the extension was namely reduced from 19 m to about 10m.”
The hydraulic luffing jib also permits particularly fine changes in outreach. That's especially important when installing elements at extreme heights.
According to Liebherr, the LTM 11200-9.1 is the strongest telescopic crane on the market and has the longest telescopic boom in the world. The eight-part boom is fully automatically extended to and fixed at the desired length.
Various lattice extensions are available. The Yshaped telescopic-boom guying system offers remarkable increases in load capacity. The active, speed-dependent rearaxle steering developed by Liebherr is integrated into the nine-axle chassis. Disc brakes ensure greater safety and econ.
Liebherr's mobile cranes division includes over 30 different types of telescopic and lattice boom cranes on wheeled and crawler chassis.