1980-04-01

All Hydraulic Drilling Rig, SCH3500 800661

This paper provides a brief review of the significant outstanding features of the totally self-contained all hydraulic drilling rig SCH3500 now available for road construction, quarry work and open pit mining industry for drilling 3½″ diameter (maximum) holes 100′ (maximum) deep. An on-board Gardner-Denver screw compressor provides enough blowing air.
This paper is divided into the following sections:
  1. 1)
    Background
  2. 2)
    Specifications
  3. 3)
    The Drill
  4. 4)
    The Feed
  5. 5)
    The Positioner
  6. 6)
    The Boom
  7. 7)
    The Frame
  8. 8)
    The Power Package
  9. 9)
    The Propulsion Package
  10. 10)
    The Hydraulic System
  11. 11)
    Drillability of HPR1/SCH3500

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