Komatsu Launches the PC33MR-6: The Quiet Powerhouse for Urban Construction

2025-10-11 10:49:19

TOKYO, Japan – Komatsu Ltd. today announced the launch of the PC33MR-6, a new 3.5-ton mini crawler excavator engineered to meet the unique challenges of modern urban construction. Designed with a focus on zero-emission operation, ultra-low noise, and exceptional power, the PC33MR-6 is set to become the go-to solution for contractors working in sensitive and confined environments.

The growing demand for urban infill development and stringent new city regulations on emissions and noise have created a pressing need for cleaner, quieter machinery. The PC33MR-6 answers this call with its innovative hybrid-electric powertrain. While it retains a compact, efficient diesel engine for standard operation, its groundbreaking "E-Power" mode allows it to run solely on battery power for up to four hours, enabling true zero-emission and near-silent operation.

"This isn't just an incremental update; it's a fundamental shift in what a machine of this class can do," said Kenji Sato, Komatsu's product Manager for Mini excavators. "The PC33MR-6 allows contractors to work inside buildings, in hospitals, next to schools, or in dense residential areas at any time of day, without disturbing the community or harming air quality. It turns a traditional piece of equipment into a good neighbor."

The benefits extend beyond its environmental credentials. The instant torque from the electric drive system provides superior digging power and smoother hydraulic response compared to conventional models. This results in faster cycle times and reduced operator fatigue. The machine also features an advanced energy-recovery system that captures power during swing braking, recharging the batteries and extending the E-Power runtime.