BHP has become the latest company to up the ante on autonomous haulage. In an internal email, Edgar Baston, BHP WA Iron Ore chief executive, and Elsabe Muller, Jimblebar general manager, said that employees would be provided training to further develop their skill sets to roles needed to support autonomous haulage.
Rio Tinto has about 75 Komatsu 930E autonomous trucks across its Pilbara iron ore operations and it has plans to fully automate its Silvergrass operation when that comes on line. It is also make inroads into its AutoHaul autonomous train system. Communications issues are understood to have been a major concern with the autonomous trains program; however, those problems seem to have been solved.
The other major iron ore miner in the Pilbara, Fortescue Metals Group, announced last month that it too would be expanding its autonomous haulage fleet. FMG has 56 Caterpillar 793F autonomous haulers operating at its Solomon Hub. It plans to convert another 12 Caterpillar 793Fs to autonomous operations there.
Those 56 autonomous haulers at Solomon have given FMG a 20% productivity improvement. It wants to extend those benefits to its Chichester Hub operations and has started rolling out its autonomous haulage system there. That includes the start of commercial negotiations with suppliers and the upgrade of the IT network at the Cloudbreak and Christmas Creek mines. About 100 haul trucks will be converted to AHS at Chichester.
Caterpillar has been promoting the fact that its F-series trucks can be fairly easily retrofitted to convert to autonomous haulage – something it claims its main rival Komatsu’s cannot be.
Besides the AHS expansion, FMG is investing in a relocatable conveyor trial at the Cloudbreak mine. As its name suggests, this is a conveyor system that can be fairly easily moved to improve operational flexibility. FMG has not settled on a provider for the relocatable conveyor technology. An FMG spokesman said the company was in discussions with several suppliers as part of the trial.
The company is also continuing to roll out its robo-drill program with autonomous drills operating at Solomon and Christmas Creek. FMG has not released the name of the company that has supplied its autonomous drill technology.
BHP has also gone down the autonomous drill path. It is using Atlas Copco Pit Viper 271 rotary blast hole rigs at its WAIO sites. Atlas Copco has the contract to convert 18 of BHP’s drills to autonomous operations.