Atlas Copco Robbins 73R

D.C. Drive 224 kW (300 HP)

Connected power
Mains supply 415 volts, 50 Hz, 500 kVA
Diesel Genset supply 650 kVA unit with appropriate Load Bank

Compact design
5.8 m extended height
(plus 400 mm beams if required)

Pilot thrust
470 kN (106,000 lbs)

Reaming thrust
4,450 kN (1,000,000 lbs)

Reaming torque
225 kN m (166,000 ft lbs)

Pilot Drilling speed
0 – 70 rpm variable

Reaming speed
0 – 19 rpm variable

Transporter
sled with inbuilt erection device

Beams to allow hole break through
(if required)

Air consumption
23 m³/min @ 7 bar

Water consumption for cooling
approximately 75 litres/min

Water consumption for pilot drilling
approximately 700 litres/min
which is recirculated via sumps

Raiseborer weight
11.5 tonnes, including sled 19 tonnes