Robbins 73RH C High torque: Raiseboring Machine - Atlas Copco Iraq

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Robbins 73RH C High torque: Raiseboring Machine

Mahmoud Ismail

+971 (04) 704 0111

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Mid-size raiseboring machines for holes ranging from 1.5 to 3.1 m (5-10 ft.) in diameter.

Robbins 73 rigs are the sturdiest, most widely sold raiseboring rigs in the world. These medium-sized machines drill holes from 1.5 to 3.1 m (5-10 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 73 rigs are no exception. Robbins 73 machines are built to serve and built to last.


Features & benefits

  • Designed for expert drilling The Robbins 73 in-line drive system provides balanced thrust loads to improve cutting and minimize vibrations and wear.
  • Fast and easy setup Robbins 73 rigs require a smaller drilling pad and fewer tie-down bolts. Setup is quick and easy.
  • 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, nominal8 ft
Raise diameter, range5 - 10 ft
Raise lenght, nominal1800 ft
Raise lenght maximum2300 ft
Reaming thrust935000 lbs
RPM, pilot0 - 52 rpm
RPM, reaming0 - 7.5 rpm
RPM, reaming (reduced torque)7.5 - 11.5 rpm
Bailing air (@ 7bar/100 psi)635 ft³/min
Bailing, water159 gal/min
Electrical power supply (50/60 Hz)310/358 kW / 415/480 HP
Electrical voltage (50/60 Hz)380-1000 V
Electrical frequency50 - 60 Hz
Electrical power requirement (50/60 Hz)374/429 kVA
Drill pipe diameter11 1/4 inch
Drill pipe length s/s60 inch
Pilot hole diameter12 1/4 inch
Pilot hole optional diameter13 3/4 inch
Cooling water (at 25ºC / 77°F inlet temperature)26 gal/min
Measurements & weights - Derrick
Height extend205 inch
Height retracted150 inch
Width piploader included119 inch
Depth75 inch
Weight27900 lb
Weight pipeloader included29000 lb
Drill angle (from horizontal)90-60 ºangle
Measurements & weights - Drive pack
Length120 inch
Height65 inch
Width59 inch
Weight9040 lb
Measurements & weights - Thrust pack
Length90 inch
Height60 inch
Width55 inch
Weight4850 lb
Performance
Maximum torque, reaming184000 ft-lbs
Maximum torque, break out 238300 ft-lbs
Stroke81 inch
Dimensions
Width69 inch
Traverse rate, fast traverse rate5.6 ft/min
Traverse rate, feed rate1.6 ft/min

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See the product in action

Mahmoud Ismail

+971 (04) 704 0111

Send an email