The Kansanshi copper-gold mine is located in northwestern Zambia. In June 2024, First Quantum Minerals Ltd. (hereinafter "First Quantum") and Hitachi Construction Machinery began technological feasibility trials of an ultra-large full battery rigid frame dump truck (hereinafter "full battery rigid dump truck") here at this mine. These are the world's first* technological feasibility trials employing ultra-large dump trucks (trucks with a load capacity of 150 tons or higher) at an actual operating mine site. The important issues for mine operations are efficient running of the dump trucks, and curbing CO2 emissions.
*As of June 27, 2024, based on a survey conducted by Hitachi Construction Machinery of ultra-large dump trucks with a load capacity of 150 tons or more manufactured by Original Equipment Manufacturer.
First Quantum is a mine operator, and they're channeling efforts not only into mining operations, but also revitalization of local communities and protection of the environment. Rees, Mining Operations Manager, explains why: "The world is shifting to renewable energy. And copper producers are no exception. We want to contribute to society and the environment through sustainable approaches and have a positive effect on the future."
Renewable energy accounts for 92% of the power supply in Zambia. In addition to hydroelectric power, sources are likely to expand to solar, wind, and biogas in the future. Copper is indispensable as a component for electric vehicles, and more generally for realizing a decarbonized society. The Zambian government has set a target of tripling copper production in the next few years.
"If this project succeeds, we will be able to achieve that goal," says Rees.
This is because the full battery rigid dump truck uses a trolley charging system, with power supplied directly from overhead cables. Thus, there's no need to stop the truck for charging, and reduced battery weight helps to maximize loading capacity. The resulting higher operating rate will enable major improvement in mine productivity.
It's been a few months since these technological feasibility trials started. How do the project participants feel about the full battery rigid dump truck?
"The truck can move more quickly and efficiently. This allows us to reduce the use of diesel trucks and helps reduce carbon emissions. It's an incredible system that's really unique," says Chief Mining Engineer, George.
Mine Maintenance Manager, Gregory adds that the truck also ensures worker safety: "It's difficult for truck operators and workers in the area to sense danger because they're always exposed to noise. But a full battery rigid dump truck has no engine, so workers can always hear even low-volume sounds. This lets them to work with greater peace of mind."
Superintendent, Charl is confident: "If this full battery rigid dump truck is a success, I think everyone will want to buy one. The world clearly has its eye on this project."
The partnership between First Quantum and Hitachi Construction Machinery began 12 years ago through their collaborative development of trolley assist technology.
"Thanks to this technology, we greatly improved the speed of ramp climbing. This reduced fuel consumption, extended engine life, and reduced CO2 emissions," Rees reflects.
Since then, the partnership between the two companies has grown stronger, leading to the current technological feasibility trial.
"We are very similar to Hitachi Construction Machinery in terms of management philosophy and culture — in that we are always pushing technological progress and striving for improvement," Rees smiles.
As Gregory says, "Yesterday's success is nothing more than a benchmark for what we can do today." They will never stop moving forward, even in tough environments.
The technological feasibility trial is continuing. The trolley assist lines at Kansanshi will double in the next 12 months and triple over the next 5 years. This is more directionally accurate relevant to First Quantum’s current business plan.
When George says, "This innovation is moving forward, and I want to see the upgrading of everything we have," That is consistent with Rees’s thoughts.
"A full battery rigid dump truck is very revolutionary for the industry," says Rees. "We are truly thrilled to be able to participate in this technological feasibility trial, and tackle the challenges of technological progress together with Hitachi Construction Machinery."