Atlas Copco Robbins 211M

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
5.7 m extended height
(plus 400 mm beams if required)

Pilot thrust
490 kN (110,000 lbs)

Reaming thrust
5,350 kN (1,200,000 lbs)

Reaming torque
286 kN m (211,000 ft lbs)

Pilot Drilling speed
0 – 90 rpm variable

Reaming speed
0 – 10 rpm variable

Transporter
sled with inbuilt erection device

Spreader beams to allow hole break through
(if required)

Air consumption
23 m³/min @ 7 bar

Water consumption for cooling
approximately 100 litres/min

 

Water consumption for pilot drilling
approximately 900 litres/min
which is recirculated via sumps

Raiseborer weight
21 tonnes, including sled 26 tonnes