SCHEDULE B - Technical Data of IR RBM 211M Raiseborer

1. Connected power
   • Mains supply 415 Volts, 50 Hertz, 500 KVA
   • Diesel Genset supply 650 KVA unit with appropriate Load Bank if necessary
2. D.C. Drive 224 KW (300 HP)
3. Compact design - 5.7m extended height (plus beams approx. 350mm)
4. Pilot thrust - 490 KN (110,000 lbs)
5. Reaming thrust - 5,338 KN (1,200,000 lbs)
6. Reaming torque - 286 KNm (211,000 ft lbs) operating
7. Pilot Drilling speed 0 - 90 rpm variable
8. Reaming speed 0 - 10 rpm variable
9. Transporter - crawler with inbuilt erection device
10. Spreader beams to allow hole break through (if required)
11. Air consumption 23m3/min @ 7 bar (800 cfm @ 100 psi)
12. Water consumption:
    • cooling approximately 150 litres/min (40 gpm @ 100 psi)
    • pilot drilling approximately 900 litres/min (250 gpm @ 100 psi)
13. Raiseborer weight - 21 tonnes (with crawler 26.0 tonnes)