Liebherr to launch new R 946 demolition excavator
18 March 2013
One of the highlights on show for the demolition industry at Bauma will undoubtedly be Liebherr’s latest demolition excavator, the 72 tonne R 946 tracked excavator powered by a Liebherr 6-cylinder diesel engine that complies with current Stage IIIB/Tier 4 Interim emission limits and develops 200 kW (272 hp) at 1,800 rpm. The new machine is based on the R 946 machine introduced in early 2012 and therefore possesses all the advantages of the standard version, including increased performance potential, greater convenience for the driver and simplified maintenance.
Liebherr attaches special importance to the integrated excavator-system technology that is incorporated into all of its latest tracked excavators to ensure fast, smooth operating movements. To supply the necessary hydraulic flow volume, a dual-circuit Positive Control hydraulic system is used. Compared with other systems, this avoids energy wastage by reducing, and in some cases entirely eliminating, pressure losses.
The R 946 Demolition excavator to be exhibited at the Bauma will be equipped with a 4.3 m (14.1 ft) boom and a 3.3 m (10.8 ft) dipper. With a second, 3 m (9.9 ft) dipper, this special-purpose excavator can reach heights of up to 13 m (42.7 ft).
