
Engines serving it up at Savage River mine
Engines serving it up at Savage River mine FIVE Cummins QSK engine-powered Hitachi excavators are clocking up impressive availability at a magnetite iron ore mine in the rugged north west of Tasmania. All five Hitachi excavators on site at Grange Resources’ Savage River iron ore mine have been hitting their availability target of 92 per cent, including all scheduled and unscheduled maintenance. Three of the excavators are EX3600-6 shovels, each with a Tier 2 Cummins QSK60 engine rated at 1950 horsepower (hp) and an operating weight of 360t. An EX1900-6 shovel gets its digging force from a Tier 2 Cummins QSK38 engine rated at 1085hp, while an EX1200-6 shovel is powered by a 760hp QSK23. The excavators move about 5...