raisebore

SCHEDULE B - Technical Data of Robbins 32R Raiseborer

  1. Connected power
    • Mains supply 415 Volts, 50 Hertz, 146 KVA
    • Diesel Genset supply 250 KVA unit
  2. Hydraulic type machine
  3. Compact design - 3.0m extended height (plus 500mm high support beams)
  4. Pilot thrust - 912 KN @ 241 bar (205,000 lbs @ 3,500 psi) *
  5. Reaming thrust - 912 KN @ 241 bar (205,000 lbs @ 3,500 psi)
  6. Reaming torque - 50 KNm (36,600 ft lbs) operating
  7. Pilot Drilling speed 0 - 80 rpm variable
  8. Reaming speed 0 - 20 rpm variable
  9. Transporter - sled with inbuilt erection device
  10. Beams to allow hole break through (if required)
  11. Air consumption 12m3/min @ 7 bar (500 cfm @ approximately 100 psi)
  12. Water consumption:
    • cooling approximately 60 litres/min (15 gpm @ 100 psi)
    • pilot drilling approximately 500 litres/min (120 gpm @ 100 psi)
  13. Raiseborer weight - 9.0 tonnes (including support beams)

* Note: 32R Raiseborer has equal thrust in pilot drilling and reaming mode due to modification for down reaming applications.

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