It’s Always A Joy To Photograph Another Jumbo | Mining Industrial Photographer James Hodgins

Again I found myself face to face with my favorite piece of mining machinery to date………….the Jumbo.  I don’t know what it is about this drill that get’s me excited.  I think it’s because out of the countless times I have photographed it I have yet to run out of ideas on how to position it.  I would love to have a day of just placing and photographing a jumbo.  No shot list, no testing, just me and the Jumbo (and operator) and anything goes.


www.joyglobal.com

The DR-1SB hydraulic jumbo drill, a single-boom hydraulic rig, is designed for drilling vertical, horizontal and angled holes in underground production or development headings. The DR-1SB has boom coverage of 5.46 m by 5.46 m (17’11” by 17’11”) and inner and outer turning radius’ of 4.19 m (13’9”) and 6.48 m (21’3”), respectively.

The DR-1SB 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 DR-1SB 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

 

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