Make every shift count with high-performance drilling

Engineered to thrive in demanding drilling environments, the Komatsu ZR122 rotary drill delivers powerful, consistent performance shift after shift. Built with a rugged boxer-style mast and intelligent automated systems, the ZR122 helps your operation stay on target—whether you’re drilling through tough rock or optimizing hole quality to reduce downstream costs. When productivity, availability, and cost-per-meter drilled are non-negotiable, the ZR122 brings the torque, precision and structural resilience to help you hit your daily production goals.

• Robust Boxer-Style Mast: Increases structural reliability while reducing inspection time—supporting more machine availability and fewer unplanned interruptions.
• High-Force Rack-and-Pinion Pulldown: Delivers 122,000 lbs. of weight on bit and 16,000 lbs. of rotary torque to power through the hardest rock with confidence
• Automated Bit Carousel: Streamlines bit changes while reducing operator risk, helping maintain consistent fragmentation and hole stand-up integrity.
• High-Precision GPS (HPGPS): Enables accurate hole placement to support better blasting outcomes and more efficient downstream processes.
• Configurable and Application-Ready: Flexible design supports a range of setups to adapt to site-specific challenges and deliver low cost-per-meter drilled—even in difficult conditions.