Robbins 123RVF C: Raiseboring Machine - Atlas Copco Liberia

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Robbins 123RVF C: Raiseboring Machine

George Apostolopoulos

+233 21 774512

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Large-size raise boring machines for holes ranging from 2.4 to 6.0 m (8-20 ft.) in diameter.

The Robbins 91 and Robbins 123 rigs are powerful raise-boring rigs with a modular design for easy transport when weight or size limitations can be a serious concern. These rigs drill holes from 2.4 to 6.0 m (8-20 ft.) in diameter and can be relied on in a variety of applications. At Atlas Copco, we strive to construct high-quality machines that are easy to set up, operate and maintain – and our Robbins 91 and 123 rigs are no exception. These machines are built to serve and built to last.

Features & benefits

  • Power you can depend on The powerful 500-kW electric motor drives the reamer to penetrate the hardest rock.
  • Easy maintenance and transport The gear box is installed in a removable barrel, allowing the derrick to be split into smaller, more transportable components.
  • Steadfast and efficient Standard functions include anti-jamming, auto makeup and the gradual ramp-up of speed and torque.

Technical description

Technical data

Operational data - Derrick
Raise diameter, nominal5 m
Raise diameter, range3.1 - 6 m
Raise lenght, nominal900 m
Raise lenght maximum1100 m
Reaming thrust8923 kN
RPM, pilot0 - 50 rpm
RPM, reaming0 - 7 rpm
RPM, reaming (reduced torque)7 - 12 rpm
Bailing air (@ 7bar/100 psi)25 m³/min
Bailing, water800 l/min
Electrical power supply (50/60 Hz)490 kW / 657 HP
Electrical voltage (50/60 Hz)460/690 V
Electrical frequency50 - 60 Hz
Electrical power requirement580 kVA
Drill pipe diameter333 mm
Drill pipe length s/s1524 mm
Pilot hole diameter381 mm
Measurements & weights - Derrick
Height extend5700 mm
Height retracted4100 mm
Width piploader included3800 mm
Depth2700 mm
Weight33700 kg
Weight pipeloader included35300 kg
Measurements & weights - Drive pack
Length3100 mm
Height1800 mm
Width1900 mm
Weight2500 kg
Measurements & weights - Cooling unit
Length2320 mm
Height2450 mm
Width1520 mm
Weight2040 kg
Measurements & weights - Thrust pack
Length2300 mm
Height1500 mm
Width1600 mm
Weight2800 kg
Maximum torque, reaming540 kNm
Maximum torque, break out 700 kNm
Stroke2160 mm
Width2300 mm
Traverse rate, fast traverse rate1.7 m/min
Traverse rate, feed rate0.3 m/min

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George Apostolopoulos

+233 21 774512

Send an email