Komatsu has introduced a groundbreaking, fully autonomous battery-electric crawler dozer designed specifically for the hazardous and remote task of mine tailings rehabilitation. Capping tailings dams requires precise, systematic grading over unstable, highly saturated soil, exposing operators to the risk of sinkholes and toxic dust. By removing the operator and the diesel engine, Komatsu's new platform dramatically improves site safety while achieving zero local emissions.
The machine is built on a 600-volt lithium-ion battery architecture, chosen for its ability to deliver the sustained high-torque required for heavy dozing. Because traditional GPS signals are often blocked by steep canyon walls or compromised by heavy dust at mining sites, the dozer utilizes a Simultaneous Localization and Mapping (SLAM) system. A 360-degree LiDAR array, paired with inertial measurement units (IMUs), continuously scans the terrain to navigate and create a real-time 3D topological map of the tailings dam. This allows the machine to autonomously calculate the optimal blade pitch and cutting depth to achieve the specified contour for soil capping.
A key engineering feature is the machine's regenerative pushing dynamics. When pushing heavy loads of cap soil downhill, the electric drive motors reverse function as generators, capturing the massive kinetic energy of the decelerating machine and feeding it back into the battery pack. This extends the operational runtime significantly compared to continuous draw operations. Furthermore, the absence of a traditional cab and diesel cooling pack allowed Komatsu to reconfigure the machine's center of gravity, placing the heavy battery mass low and central, which improves tractive effort on the soft tailings soil.
By pairing electric propulsion with true GPS-independent autonomy, Komatsu is enabling mining companies to execute continuous, 24/7 rehabilitation operations in environments where human operators cannot safely or efficiently work.
