Hitachi’s Path to Zero vision is supported by new equipment and software solutions
The “zero emissions, zero downtime, and zero entry mines” roadmap was introduced at MINExpo 2024 along with a new rigid dump truck, excavator and tech solutions
MINExpo 2024 attendees were the first to learn about Hitachi Construction Machinery's Path to Zero vision for mine sites; zero emissions, zero downtime, and zero entry mines. At the show, the company also introduced the EH4000AC-5 rigid dump truck, the new EX-7 excavators, and a technology collaboration with Envirosuite Ltd. designed to provide intelligent insights for responsible mining.
High-performance next-generation rigid dump trucks
The next-generation EH4000AC-5 rigid dump truck is designed to significantly improve mine site productivity. This truck has a payload of 242 tonnes (266 tons), and reaches a maximum speed of 65 km/h (40 mph), to enhance material handling efficiency. This improved capability is a result of applying metal fabrication technologies used in the design of hydraulic excavators to the truck frame and body.
Strengthened suspension delivers smooth and stable performance in these trucks. Operators can choose from three driving modes (High Power, Power or Eco) to match the site environment. Eco Mode reduces fuel consumption while High Power Mode maximizes driving performance. The truck has been designed to deliver a lower cost per ton.
The Hitachi AC Drive Control Systems technology is designed to increase stability, performance, and maneuverability. Wet brakes in the front and back are paired with an enhanced retarder for deceleration performance in mining environments. The truck has more stable braking during long downhill operations with elevated electric braking performance and a new brake pedal, for both hydraulic and electric braking.
The truck can be upgraded to a fully electric specification with batteries and a trolley dynamic charging system that receives power from overhead lines.
Testing battery electric mining trucks
The first technological feasibility trial of the full battery electric trolley truck is now underway at First Quantum Minerals Ltd.'s Kansanshi deep open-pit copper-gold mine in the Republic of Zambia. First announced in June 2024, the trial of the ultra-large, full-battery rigid frame dump truck aims to verify the basic performance operations such as traveling, turning, and stopping under actual operating loads, and verify battery charging and discharging cycles.
"Mining companies around the world are working to reduce emissions," says Hitachi Construction Machinery's vice president and executive officer, president of the mining business unit, Eiji Fukunishi. "As an original equipment manufacturer, it is our vision to provide solutions that can reduce our customers' environmental footprint. The battery dump truck represents the future, not only for the Hitachi Construction Machinery Group but for the mining industry as a whole, and we are pleased to establish this proving ground on an active mine site and work with First Quantum on advancing this zero-emission solution."
The full-battery dump truck can continuously operate in sites by directly charging from the overhead trolley lines and through the regenerative braking system. This means the truck does not need to stop to be charged.
Intelligence supporting responsible mining
Improving the site environment for the safety and health of workers and reducing the environmental impact on local communities is essential for sustainable resource extraction. Mine sites need intelligent tools to achieve this goal, says the company.
The collaboration with Envirosuite is a cornerstone of Hitachi Construction Machinery's strategy to address global demand around environmental, social, and governance (ESG) and greenhouse gas challenges in mining, says the company. Envirosuite is an environmental intelligence technology company that helps mines manage operational challenges to reduce risk and improve productivity. Envirosuite's solutions combine operational data, evidence-based scientific methods, and predictive meteorological models. Real-time monitoring of air quality, dust, noise, odor, vibration, and water quality helps operations management make informed decisions.
Hitachi plans to combine its mining knowledge with Envirosuite's industrial technology and the fleet management and digital mining solutions of Wenco, a wholly-owned subsidiary, to provide comprehensive insights.
