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Underground hard rock mining Press release Product and service

Komatsu’s WX03 LHD is engineered for demanding underground hard rock environments

2 min read / October 6, 2022

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Offers improved performance and electronic controls to simplify training and operation

October 6, 2022 – Load-haul-dump (LHD) machines are a mainstay of any underground hard rock operation. Engineered for the most demanding mining environments, the Komatsu WX03 LHD is a 3-tonne diesel-powered heavy-duty machine designed for especially small, narrow vein applications with limited maneuvering space. This solid LHD features simple operation controls and a rugged long-life structure specifically designed for ease of use and ease of maintenance with an onboard self-diagnostic user interface.

With an efficient powertrain and hydraulic system designed for improved performance, as well as a modern operator compartment with easy-to-use controls, this small-class LHD can offer big performance.

Benefits of the Komatsu WX03 LHD

  • 74 kW (99 HP) water-cooled engine for low environmental heat
  • Outstanding breakout power for fast bucket filling
  • Pre-engineered options to suit most applications and requirements

Engineered for reliability, the WX03 is built with a high-strength steel frame design and a heavy-duty, all-mechanical powertrain, to help hit production targets while controlling costs. It is designed for long component life with mining grade components, a proven powertrain, severe-duty electrical system and collet-style pins.

Ease of use for operators and maintenance team
To help your mine drive toward zero harm, the WX03 offers multiple features including a ROPS/FOPS-certified enclosure, a spring-applied braking system, operation interlocks, three-point mounting, anti-slip steps and hot component isolation. With its intuitive controls and ergonomics, this LHD is built for operator comfort and visibility. Easy-to-use two-handed controls simplify training and operation, and the unique bucket geometry is designed to optimize efficient filling with less spillage.

Offering exceptional serviceability, the WX03 has vital maintenance components conveniently accessible from the ground level that are designed to help your service crew make fast, efficient repairs.

Can be tailored for your specific mining needs
Customizable to meet your operational needs, some of the available options on the WX03 include an automatic lubrication system, ejector bucket, fire suppression system, quick-attach coupling system, radio remote control, and recovery hook.

Learn more about the WX03 LHD and other machines in Komatsu’s hard rock line up.

About Komatsu
Komatsu develops and supplies technologies, equipment and services for the construction, mining, forklift, industrial and forestry markets. For a century, the company has been creating value for its customers through manufacturing and technology innovation, partnering with others to empower a sustainable future where people, business and the planet thrive together. Front-line industries worldwide use Komatsu solutions to develop modern infrastructure, extract fundamental minerals, maintain forests and create consumer products. The company's global service and distributor networks support customer operations to enhance safety and productivity while optimizing performance.

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* Comparisons are made to prior Komatsu models unless otherwise specifically stated.

Media inquiries contacts

Caley Clinton, Director, Corporate  Communications and Brand

Caley Clinton

Director, Corporate

Communications and Brand

(414) 712-9728

Jill Rick, Manager, PR and CSR

Jill Rick

Manager, PR and CSR

(262) 337-0854