Robbins 44RH C Low profile: Raiseboring Machine - Atlas Copco Madagascar

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Robbins 44RH C Low profile: Raiseboring Machine

Lina Jorheden

+254 (0) 703054000

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Built on the proven design of our low-profile, lightweight raise drills, the Robbins 44RH C Low profile adds higher torque and thrust to a small diameter raise drill. The 44RH C Low profile is a versatile high-production raise drill for raise requirements in the smaller diameter range


Features & benefits

  • Low profile and light weight raise boring machine
  • The sturdy worktable is available with a manual or a hydraulic wrenching system for fast and reliable pipe threading
  • The entire drive train features a hollow centre, enabling efficient transmission of any flushing media to clear the pilot hole
  • The Robbins raise drills apply to the well established and proven Atlas Copco Rig Control System (RCS) which adds reliability and user friendliness

Technical description



Technical data

Operational data - Derrick
Raise diameter, nominal1.5 m
Raise diameter, range1 - 1.8 m
Raise lenght, nominal340 m
Raise lenght maximum610 m
Reaming thrust2000 kN
RPM, pilot0 - 49 rpm
RPM, reaming0 - 16 rpm
RPM, reaming (reduced torque)16 - 25 rpm
Bailing air (@ 7bar/100 psi)13 m³/min
Bailing, water450 l/min
Electrical power supply (50/60 Hz)165/190 kW / 221/255 HP
Electrical voltage (50/60 Hz)400-1 000 V
Electrical frequency50 - 60 Hz
Electrical power requirement (50/60 Hz)198/227 kVA
Drill pipe diameter203 mm
Drill pipe diameter optional254 mm
Drill pipe length s/s750 mm
Pilot hole diameter229 mm
Pilot hole optional diameter279 mm
Cooling water (at 25ºC / 77°F inlet temperature)60 l/min
Measurements & weights - Derrick
Height extend3250 mm
Height retracted3250 mm
Width piploader included2600 mm
Depth1650 mm
Weight7500 kg
Weight pipeloader included7900 kg
Drill angle (from horizontal)90-60 ºangle
Measurements & weights - Power pack
Length3300 mm
Height1690 mm
Width1600 mm
Weight4700 kg
Performance
Maximum torque, reaming75 kNm
Maximum torque, break out 96 kNm
Stroke1235 mm
Dimensions
Width1600 mm
Traverse rate, fast traverse rate5.9 m/min
Traverse rate, feed rate3 m/min

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Lina Jorheden

+254 (0) 703054000

Send an email