Real-world terrain driving test of the DALI 3m³ battery-electric LHD

Real-World Terrain Driving test of the DALI 3m³ battery-electric LHD

WJ-3EB battery underground LHD, jointly developed by DALI and Volvo Penta, has successfully completed specialized real operational testing.

This test represents a critical validation step in transitioning the WJ-3EB battery underground LHD from R&D and production to real-world operational deployment, marking a pioneering achievement in the field of new-energy underground mining equipment. The loader demonstrated stable operation and excellent core performance metrics, successfully withstanding rigorous testing across diverse scenarios. This milestone represents a major technological breakthrough for the city’s mining equipment manufacturing sector and paves the way for the electrification, green transformation, and intelligent development of underground mining machinery.

For this test, a complex route featuring long uphill and downhill sections as well as continuous curves was selected. This setup authentically simulates the rigorous operating environment of underground mine roadways—characterized by undulating terrain, intersecting ramps, and frequent turns—to conduct a performance evaluation under realistic conditions.The testing focused on the core performance of the WJ-3EB battery underground LHD and addressed existing technical challenges in the mining industry. By capturing real-time, firsthand data on energy consumption, braking, and energy recovery, the tests provided a robust empirical basis for the loader’s future optimization, iterative refinement, and large-scale deployment, effectively verifying that its safety and operational performance meet the requirements of routine underground mining operations.

The success of these specialized test marks a milestone for DALI in deepening high-end scientific and technological collaboration and achieving breakthroughs in cutting-edge industry technologies. By leveraging Volvo Penta’s advanced electric powertrain system, this LHD breaks the mold of traditional underground diesel equipment operations, delivering comprehensive improvements in power stability, control precision, and safety protection. This achievement highlights DALI’s role as an industry leader in driving innovation and contributes to the creation of an innovative, efficient, and collaborative high-end equipment manufacturing ecosystem.

Compared with traditional underground LHD loaders, the WJ-3EB battery LHD offers significant advantages—such as zero exhaust emissions, low noise levels, reduced energy consumption, and lower operation and maintenance costs—effectively addressing critical issues like exhaust accumulation, high energy usage, and operational pollution at the source. The real-world terrain test has confirmed that the WJ-3EB’s high-efficiency kinetic energy recovery and coordinated braking system effectively lowers energy consumption and extends the vehicle’s operating range, thereby strengthening the foundation for safe production. The successful testing of the WJ-3EB serves as a practical model for developing green, intelligent mines and powerfully drives the industry’s transformation toward low-carbon, smart, and intensive operations.