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Joy RR-1MB

Joy RR-1MB
Joy RR-1MB

Contact Us

Please contact us using the contact phone, by phone or by e-mail:


Phone: (871) 750 5356 Torreón, Coahuila México

Phone: (472) 723 9494 Silao, Guanajuato México

1 Start 2 Complete

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. 

Weight 16,545 kg 36,400 lbs.
Maximum width 2.06 m 6 ft. 9 in.
Turning radius



4.19 m

6.48 m

13 ft. 9 in.

21 ft. 3 in.
Turning angle 38º 38º
Boom guide rollover 360º 360º
Boom extension 1219 mm 48 in.
Feed extension 1.524 mm 60 in.
Boom coverage



6.07 m

5.69 m

19 ft. 11 in.

18 ft. 8 in.
Drifter Montabert HC 50
Tires 12.00 x 20
Cable reel - type G-GC 76.2 m 250 ft.