Joy NV 1

Joy NV 1

  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
  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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