Atlas Copco Robbins 7SP

D.C. Drive 186 kW (250 HP)

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

Compact design
5.3 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
230 kN m (170,000 ft lbs)

Pilot Drilling speed
0 – 90 rpm variable

Reaming speed
0 – 10 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 120 litres/min

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

Raiseborer weight
18 tonnes, including sled 21 tonnes