D.C. Drive 300 kW (400 HP)
Connected power
Mains supply 415 volts, 50 Hz, 650 kVA
Diesel Genset supply 750 kVA unit with appropriate Load Bank
Compact design
4.4 m extended height
(plus 400 mm if beams required)
Pilot thrust
500 kN (115,000 lbs)
Reaming thrust
6,700 kN (1,500,000 lbs)
Reaming torque
450 kN m (332,000 ft lbs)
Pilot Drilling speed
0 – 68 rpm variable
Reaming speed
0 – 16 rpm variable
Transporter
sled with inbuilt erection device
Spreader beams to allow hole break through
(if required)
Air consumption
23 m³/min @ 7 bar
Cooling system
closed circuit glycol
Water consumption for pilot drilling
approximately 900 litres/min
which is recirculated via sumps
Raiseborer weight
32 tonnes