Yesterday (Feb. 28, 2024), Komatsu unveiled its new WX11 LHD at its inaugural Hard Rock Days demo at the University of Arizona’s San Xavier underground mine in Tucson, Arizona. E&MJ had an opportunity to see the company’s latest underground hard rock mining equipment in action, learn about the latest innovations from MST Global and talk to product experts about Komatsu’s newest hard rock machines and solutions.

With an operating weight of 77,750 lb (35,250 kg), the WX11 LHD has an 11-metric-ton (mt) payload. Komatsu said the payload combined with the best-in-class breakout force will maximize productivity and provide a lower total cost of ownership for mine operators. The company explained that the WX11 also showcases its commitment to providing underground hard rock miners with a load, haul and dump solution, integrating next-generation data management capabilities, operator ergonomics, intuitive controls and compliance with EU Stage V emission requirements.

“The WX11 is a game changer for hard rock miners. Developed through a close partnership between our experienced team and our longtime customers, this product reflects a shared commitment to design excellence,” said Ryan Karns, Director of LHD and Truck Products at Komatsu. “The WX11 is the LHD every miner will want to have in their operation.”

As a new model within the Komatsu hard rock family of products, the WX11 is designed to be a class-leading LHD for all underground mine operators and contractors. With ease of operability, superior performance and ground-level maintenance position, the WX11 has several competitive edges in the 10-mt LHD class.

The WX11 is powered by a 280-hp (209 kW) Cummins diesel engine, which is available as: Canmet, MSHA, EPA Tier 3/EU Stage IIIA and EPA Tier 4F/EU Stage V. Swing-out radiator fan assemblies support quick washdowns. It has heavy-duty hard rock Komatsu axles with SAHR brakes, and Komatsu cylinders and accumulators. The cabin has an adjustable ride control with onboard telemetry.

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