Komatsu Introduces PC9000-12, the World’s Largest Electric Excavator with 80-Tonne Payload
The new PC9000-12 sets a new benchmark in mining-scale excavation, combining ultra-high payload capacity with electric operation and autonomous system compatibility.

Komatsu has unveiled the PC9000-12, currently regarded as the largest electric excavator in the world, targeting high-capacity mining operations.
The machine has an operating weight of 907 tonnes and can move up to 80 tonnes of material per pass, enabling a productivity rate exceeding 8,000 tonnes per hour. Under optimal conditions, it can load a haul truck in approximately 150 seconds.
Key Specifications
Operating weight: 907 tonnes
Payload capacity: 80 tonnes per pass
Productivity: >8,000 tonnes/hour
Truck loading time: ~150 seconds
Power output: ~4 MW (over 5,300 HP)
Electric drive with grid connection
High-Capacity Electric Operation
The PC9000-12 operates באמצעות a high-voltage cable connection to the electrical grid, drawing power comparable to nearly 20 Tesla superchargers. This configuration supports continuous, high-efficiency operation in large-scale mining environments.
The excavator is equipped with two electric motors delivering approximately 4 MW of total output, equivalent to more than 5,300 horsepower.
Integration and Automation
Designed for bidirectional loading efficiency, the PC9000-12 is compatible with FrontRunner, Komatsu’s autonomous haulage system, enabling integration into fully automated mining fleets.
Market Context
The launch reflects the ongoing shift toward electrification and automation in the global mining equipment segment, as manufacturers respond to increasing demand for lower-emission, high-productivity solutions.
Conclusion
With its combination of scale, electric powertrain, and automation readiness, the PC9000-12 reinforces Komatsu’s positioning in ultra-class mining equipment and highlights the industry’s transition toward more sustainable and efficient operations.









