The RR-1MB hydraulic jumbo drill, a single-boom hydraulic rig, is designed for drilling vertical, horizontal and angled holes in underground production or development headings. The RR-1MB has boom coverage of 6.07 m by 5.69 m (19’ 11” by 18’ 8”) and inner and outer turning radius’ of 4.19 m (13’ 9”) and 6.48 m (21’ 3”), respectively.
The RR-1MB features the Intelsense drilling control system, which includes the following features:

• Collaring
• Anti-jamming
• Automatic water monitoring with feed return if low pressure is encountered
• Auto return to start position after hole completion
• Control levers for operating percussion, rotation, and feed

The RR-1MB also includes robust drilling and carrier hydraulics that feature variable displacement piston pumps; specifically:

• Jumbo hydraulics: load-sensing, closed-circuit design for percussion, rotation, feed, and boom movements
• General hydraulics: load-sensing, closed center circuit design for optimal efficiency
• Steering hydraulics: load-sensing, closed center circuit design; stick steering with direct-acting control valve and two double-acting steer cylinders

Our ROPS/FOPS-certified, environmentally controlled operator’s cab uses advanced air filtration and a climate control system to insulate your operator from particulate matter and other harmful emissions. Noise is reduced significantly through the use of integrated insulation throughout the cab structure; in addition, vibration dampeners isolate the cab from the frame, ensuring a safe and comfortable ride.