10 BIGGEST MINING EXCAVATORS – LIEBHERR R 996 B!!
The Liebherr R 996 B is the world's sixth biggest hydraulic excavator. This machine's operating weight, with shovel attachment, is 676 tonnes, 672 tonnes if you add the backhoe attachment. Undercarriage length is 10 meters and 7.9 meters wide. Shovel and backhoe capacities for this monster totals 26 cubic meters. It has digging and breakout forces of 1,550 kN and 1,670 kN for the backhoe and crowding/breakout forces of 2,430 kN and 1,905 kN for the shovel. The whole rig is powered by two 16-cylinder Cummins K 1800 E diesel engines spewing out 3,000 hp at 1,800 rpm - "Interestingengineering.com".