New Liebherr 350 tonne all terrain crane

By Alex Dahm31 March 2009

New from Liebherr is the 350 tonne capacity LTM 1350-6.1 all terrain crane on six axles.

New from Liebherr is the 350 tonne capacity LTM 1350-6.1 all terrain crane on six axles.

New from Liebherr is the 350 tonne capacity LTM 1350-6.1 telescopic boom wheeled mobile crane. The new six-axle has a 70 m telescopic boom - 10 m longer than its LTM 1300-6.1 predecessor. Maximum hoisting height, with the 78 m luffing fly jib, is 132 m, 16 m higher than its predecessor. Liebherr claims it is the strongest six axle crane on the market.

A typical target application is tower crane erection, largely due to high capacity at long boom extension. Additional capacity is available from a Y-suspension system, which doubles capacity "in many areas," according to Liebherr, which also claims it can do work of seven- or eight-axle models.

Power for the carrier is from a 450 kW Liebherr V8 diesel engine driving through a 12 speed ZF TC-Tronic automated manual gearbox. It has a torque converter and an Intarder wear-free hydraulic brake. Air-operated disc brakes are fitted for higher braking power, longer operating life and lower maintenance compared with conventional drum brakes.

In the crane superstructure is a 180 kW diesel engine, five variable axial-piston pumps, a servo control system and load sensing control. Four simultaneous functions are possible and, for maximum sensitivity, the winches and the slewing gear have closed circuits.

A feature of the LTM 1350-6.1 is the new LICCON2 crane control system (see IC December, page 44). The Bluetooth terminal (BTT) is a new mobile multifunctional control and display unit for crane erection. It can be used to position the crane on its supports. The crane driver can also attach and detach the hook block at the bumper by remote control of the hoist winch and the telescopic boom luffing ram using the Bluetooth connection. On the new LTM 1350-6.1 the BTT is also used for attaching the counterweight and for self-assembly of the Y-suspension capacity enhancement system.

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