Hitachi Construction Machinery introduces next-generation rigid dump truck

Attendees witnessed the introduction of the EH4000AC-5 rigid dump truck that redefines capability in its class, the EX-7 excavators that balance innovation with a proven design, and a collaboration with Envirosuite Ltd. to provide intelligent insights for responsible mining.

The next-generation EH4000AC-5 rigid dump truck sets new performance benchmarks for mine site productivity. This truck boasts one of the industry’s highest payloads – 242 t – and reaches a maximum speed of 65 km/h to redefine material handling efficiency. This enhanced capability is a direct result of applying metal fabrication technologies perfected in the design of hydraulic excavators to the truck frame and body.

Durability is built-in with a strengthened suspension that delivers smooth and stable performance. 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 maximises driving performance. The truck has been designed to deliver a lower cost per tonne.

The Hitachi AC Drive Control Systems technology enhances stability, performance, and manoeuvrability. Wet brakes in the front and back are paired with an enhanced retarder for superior deceleration performance in the harshest mining environments. The truck delivers more stable braking during long downhill operations with elevated electric braking performance and a new brake pedal, offering both hydraulic and electric braking.

A redesigned cab improves operator comfort with an upgraded centre console featuring ergonomic switches and levers. The monitor provides the operator with loading conditions and information regarding safety conditions around the truck.

The EH4000AC-5 was designed with an eye toward the future. 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 trucks

The first technological feasibility trial of the full battery electric trolley truck is now underway, with the truck operating at First Quantum Minerals Ltd.’s Kansanshi deep opencast 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 travelling, turning, and stopping – under actual operating loads and verify battery charging and discharging cycles.

Hitachi Construction Machinery’s Vice President and Executive Officer, President of Mining Business Unit, Eiji Fukunishi, stated, “Mining companies around the world are working to reduce emissions. 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.

First Quantum is a leader in trolley system operations. The use of Kansanshi infrastructure and the collaboration with First Quantum makes it possible to fast-track this evolving technology into a commercially viable solution.

Read the article online at: https://www.globalminingreview.com/mining/10102024/hitachi-construction-machinery-introduces-next-generation-rigid-dump-truck/