Second Mammoth Digger For Mt Keith

摘要

The second of two 800t Hitachi EX8000-6 hydraulic excavators was recently commissioned at BHP Billiton's Mt Keith Operation nickel ore mine in central-east Western Australia.rnThe new excavator will join what was, at the time of its commissioning in February this year, the first of the big machines to be commissioned in Australia. The new machine at Mt Keith will bring to six the number of these massive machines now operating throughout the world.rnThe flagship of the Hitachi excavator fleet, the giant digger is powered byrntwin Cummins QSK60 Tier II, US emission-compliant diesels, each developing 1450kW at 1800rpm. Maximum torque is 20,100Nm (2 × 10,050Nm). Configured as a face shovel and equipped with a 43m~3 bucket, the new excavator is loading out 240t rear dump trucks at Mt Keith.