raisebore

SCHEDULE B - Technical Data of IR RBM 7SP Raiseborer

  1. Connected power
    • Mains supply 415 Volts, 50 Hertz, 500 KVA
    • Diesel Genset supply 650 KVA unit c/w 140KW resistive adjustable load bank.
  2. D.C. Drive 186 KW (200 HP) 250HP with forced ventilation.
  3. Compact design - 5.3m extended height (plus beams)
  4. Pilot thrust - 470 KN (106,000 lbs)
  5. Reaming thrust - 4,448 KN (1,000,000 lbs)
  6. Reaming torque - 231 KNm (170,000 ft lbs) operating
  7. Pilot Drilling speed 0 - 90 rpm variable
  8. Reaming speed 0 - 10 rpm variable
  9. Transporter - sled with inbuilt erection device
  10. Spreader beams to allow hole break through (if required)
  11. Air consumption 23m3/min @ 7 bar (800 cfm @ approximately 100 psi)
  12. Water consumption:
    • cooling approximately 120 litres/min (30 gpm @ 100 psi)
    • pilot drilling approximately 400 litres/min (200 gpm @ 100 psi)
  13. Raiseborer weight - 15 tonnes
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