10/05/2006 - 05:00 am

Liebherr Launches New All-Terrain Crane Models

At Intermat, Liebherr introduced the LTM 1160-5.1 and LTM 1040-2.1 all-terrain cranes. The 176-ton LTM 1160-5.1 is the successor to the LTM 1150-5.1, featuring a 206-foot-long, five-section telescopic boom that is 19 feet longer than the boom on the previous model. The boom is extended and retracted using the TELEMATIK rapid-action telescoping system. A 22-foot lattice-boom extension provides a raised pivot point for the 40- to 72-foot folding fly jib, which can be optionally extended to up to 118 feet. This enables the LTM 1160-5.1 to reach lifting heights up to 311.7 feet and working radii of up to 230 feet.

The chassis permits a turning radius of just 35 meters. The active rear-axle steering developed by Liebherr controls the rear-axle steering angles as a function of the vehicle's speed. All five axles are steered, and there is a choice of six practical steering programs.

The LTM 1160-5.1 is driven by a turbocharged 6-cylinder inline Liebherr engine, which complies with Stage 3 and Tier III emission limits, has an output of 503 hp at 1,900 rpm, and a maximum torque of 2,340 Nm between 1,200 and 1,500 rpm. The Liebherr 4-cylinder inline engine on the superstructure also operates within the latest statutory emission limits. It is rated at 197 hp at 1,800 rpm.

Liebherr's two-axle 44-ton LTM 1040-2.l all-terrain crane features a 115-foot telescopic boom that is 16 feet longer than the boom used on the LTM 1030-2.1 – one model below in the product line. The four-section telescopic boom on the LTM 1040-2.1 is extended and retracted using a hydro-mechanical system. A single-stage, double-acting hydraulic ram and a double rope and pulley mechanism extend the boom quickly to the desired outreach • even with a suspended load. A 31-foot folding fly jib is available for attachment to the 115-foot telescopic boom. With it, the LTM 1040-2.l can reach lifting heights of up to 148 feet and working radii of up to 128 feet.

The LICCON control system is also used, ensuring safe, reliable crane operation and also includes an extensive diagnostic system that monitors a large number of functions. Up to four working movements can be made simultaneously. The electrical and electronic components on the crane's superstructure and the chassis are linked by the latest data bus signal transmission technology.

Powering the crane is a turbocharged 278-hp 6-cylinder diesel engine that complies with the latest Stage 3 and Tier III emission limits. Its power is transmitted to the crane's axles via an automatic power-shift gearbox. Both axles are driven and can be steered; they can be turned in the same direction for diagonal travel movements. An anti-lock braking system and wheel-slip control are standard features of the new LTM 1040-2.1, while a Telma eddy current retarder is available as an optional extra.

For information on Liebherr products available in North America, contact Liebherr Cranes, Inc., Newport News, Va., or go to www.liebherr.com.


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