Liebherr will showcase for the first time the new mobile crane LTM 1150-6.1 during the Smopyc 2008.

The 66-metre, six-axle all-terrain crane offers the longest telescopic boom in its class and thus sets a new benchmark. It reaches hook heights of up to 93 metres and radii up to 76 metres with the telescopic boom extensions and the double swing-away jib, said an official spokesman.

The new LTM 1150-6.1 can carry up to 15 tonnes of coun-terweight 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 six-axle mobile cranes and introduces the strongest crane of this design principle to the market.

The six-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 lift-ing of axles for crab steering is eliminated. Five different steering programs can comfortably be activated by push but-ton.

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 auto-matic gear change and dry clutch ensures an optimised 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.
 
The 66-metre 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 seven-metre long, for extending the telescopic boom provide an increased heel point for the 10.8 to 19 metres long swing-away jib, which can be hydraulically adjusted between 0 degree and 40 degerees under full load as an option.

The cabins for driving and crane operation offer the crane driver an ergonomic optimised, comfortable working environment.  For a convenient and safe access the crane cabin is equipped with a sidewise extendable footboard.

To improve the visibility the cabin can be tilted up to 20 degress 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. – TradeArabia News Service