The new LTM 1150-6.1 can carry up to 15 tonnes of counterweight with an axle load of 12 tonnes and a total GVW of 72 tonnes. With this configuration it can handle the majority of its crane jobs. Due to this the new 150-t-crane offers the advantage of a real taxi crane. By this Liebherr extends the concept of the “all-in cranes” up to the 6-axle mobile cranes and introduces the strongest crane of this design principle to the market.

Compact crane carrier and modern drive technology

The 6-axle carrier of the LTM 1150-6.1 has a length of only 13.5 m and its turning radius of 11 m is only slightly larger than those of the 5-axle cranes of the 150 to 160 tonne class. This results for once from the compact axle grouping and secondly the crane is equipped with the active rear axle steering which was developed by Liebherr and has proven its reliability on numerous other LTM models. The steering angle of the rear axles are actively controlled depending on the driving speed. All six axles are steered, thus the need for lifting of axles for crab steering is eliminated. Five different steering programs can comfortably be activated by push button. The width of the carrier with 14.00 and 16.00 tyres is only 2.75 m. Besides the maximum support base of 8.3 m  support widths of 6.8 m, 5.4 m and 2.75 m are available as standard.

The LTM 1150-6.1 is equipped with pneumatic disk brakes which Liebherr has introduced as the first manufacturer to mobile cranes and which offer remarkably higher breaking power in comparison to the drum brakes. A further advantage is the good control of the brake power which optimizes the track stability. Furthermore they offer longer service intervals as well as an easy and fast exchange of the brake pads, which are equipped with wear indicators.
The new LTM 1150-6.1 is driven by a Liebherr V 8-cylinder engine with turbo charger and proven databus control. This engine from the new Liebherr engine generation develops 400 KW / 544 HP at 1,900 rpm and a torque of 2.546 Nm at 1,500 rpm. The 12-speed ZF-TC-Tronic gearbox with automatic gear change and dry clutch ensures an optimized fuel consumption. As a constant brake an intarder is integrated in the gear box as standard. A torque converter allows for minimum crawler speeds during start of driving as well as for manoeuvring.

Long telescopic boom and variable lattice extensions

The 66 m long telescopic boom consists of the heel section and five telescopic sections and is extended and retracted comfortably by the fast cycle telescoping system TELEMATIK. Up to two lattice sections, each 7 m long, for extending the telescopic boom provide an increased heel point for the 10.8 to 19 m long swing-away jib, which can be hydraulically adjusted between 0° and 40° under full load as an option. At its telescopic boom of 60 m length the crane can lift up to 11 tonnes and is therefore ideally designed for the assembly of tower cranes. This capacity can be achieved also with only 15 tonnes of counterweight as a taxi crane.  At the 66 m boom the LTM 1150-6.1 offers a capacity of 7.7 tonnes. For comfortable assembly jobs a second winch and a 2.9 m long assembly jib can be offered. As an alternative a boom nose is available.

The tail swing amounts to only 4.3 m and the counterweight width is limited to only 2.75 m up to a counterweight of 30.8 tonnes. The maximum counterweight of 46.8 tonnes is provided by attaching two slabs of 8 tonnes each at the side.
The drive of the crane functions is diesel-hydraulic, whereas the electric “load sensing” control assures sensitive working motions. Up to four movements can be made simultaneously. The slewing gear is changeable from “open” to “hydraulically locked” as standard. Thus the movement can be optimal adjusted to the various working conditions, e. g. for sensitive assembly work or for fast lifting cycles.
The cabins for driving and crane operation offer the crane driver an ergonomic optimized, comfortable working environment.  For a convenient and safe access the crane cabin is equipped with a sidewise extendable foot board. To improve the visibility the cabin can be tilted up to 20° backwards. The well known options air condition, working range limiter, outrigger force monitoring device etc. are also available for the new LTM 1150-6.1.

Further information:

Wolfgang Beringer
Tel.:  +49 7391 502 3663
Fax:   +49 7391 502 3403
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Internet: www.liebherr.com