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Liebherr Expands Telescopic Crawler Crane Line-Up

The new LTR 1150 joins Liebherr's portfolio of telescopic crawler cranes.
The new LTR 1150 joins Liebherr's portfolio of telescopic crawler cranes.
The LTR 1150 can be transported complete with crawler carriers on a low-loader with a total weight of only 66 tons and a width of 11.5 feet.
The LTR 1150 can be transported complete with crawler carriers on a low-loader with a total weight of only 66 tons and a width of 11.5 feet.
Liebherr has expanded its range of telescopic crawler cranes with a new 165-ton machine. The LTR 1150 is the first telescopic crawler crane equipped with the Liebherr VarioBase, which enables the crane control to determine the optimum load capacity depending on the track width and angle of rotation.

With the launch of the LTR 1150, Liebherr is responding to the requirements of crane operators faced with lifting jobs that are beyond the LTR 1100, but for which the LTR 1220 is overkill. In terms of lifting capacity, the new 165-ton crane falls exactly between these two models.

Compact and Strong, Transport in One
The highlight of the new LTR 1150 is its economical transport concept: no other telescopic crawler crane in this load class can be transported on low-loaders complete with crawler carriers with a width of just 11.5 feet, according to the manufacturer. The LTR 1150 not only makes this possible but also has a total weight of just 66 tons. For this reason, Liebherr coined the slogan “Compact and strong, transport in one” for the new crane.

Optionally, the new telescopic crawler crane can be transported with a width of 9.8 feet – the crawler carriers are removed to allow this, which reduces the crane’s transport weight to only 42 tons. This variant requires a jack-up erection support consisting of four swivelling cylinders, which support the crane on the ground while the tracks are removed and the low-loader positions itself under the crane. This principle has proven its worth with the 110-ton LTR 1100. New on the LTR 1150, an automatic support system assists the operator. This was developed to allow faster and easier (dis)assembly of the crawler carriers.

The two crawler carriers, each weighing 12 tons, can be transported together on a standard semi-trailer with an economical width of 8.3 feet. The integrated access steps are folded in during transport.

In terms of ballast distribution, a strong emphasis was also placed on ensuring economical transport worldwide. With only four lifts, the entire counterweight can be ballasted on the crane: two lifts for the two 12-ton central ballasts and two for the maximum slewing platform ballast of 45 tons. As with the Liebherr LTM cranes, this is attached to the slewing platform using a hydraulic ballasting device. Liebherr-AutoBallast supports the crane driver during this process. The support for the slewing platform ballast is integrated in the central ballast.

A First for Telescopic Crawler Cranes
The VarioBase variable supporting base not only provides greater safety for telescopic mobile cranes, but also allows significantly higher load capacities, especially for lifts directly over the supports. The LTR 1150 is the first telescopic crawler crane to be equipped with this system, which determines the optimum load capacity in real time depending on the fixed track width and the variable rotation angle. The greatest advantages in terms of load capacity are achieved when performing lifts over the corners of the tracks, especially with reduced track widths. The maximum track width of 19 feet, a reduced width of 16.4 feet, and a narrow 11.5-foot track width are available.
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As with the other Liebherr LTR cranes, the LTR 1150 is also equipped with load charts for slopes up to a maximum of 4 degrees – in gradations of 0.3 degrees, 0.7 degrees, 1.5 degrees, 2.5 degrees, and 4 degrees. For the first time for its telescopic crawler cranes, Liebherr also calculated “WindSpeed Load Charts” for the new LTR 1150, which make it possible to work safely and flexibly even at higher permissible wind speeds of up to 15.6 m/s – even with the full load capacity in many boom positions.

Many Lifts, Different Places
The unique features of the LTR 1150 make it appealing on construction sites where many lifts need to be carried out in different places. With the short, powerful erection jib and the additional hoist gear, the LTR 1150 can move loads of up to 38 tons into the desired position. The range of working equipment for the 170.6-foot telescopic boom also includes a hydraulically adjustable double folding jib and telescopic boom extensions that allow hoisting heights of up to 272 feet to be achieved.
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