Robbins 34RH C: Raiseboring Machine - Atlas Copco Liberia

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Robbins 34RH C: Raiseboring Machine

George Apostolopoulos

+233 21 774512

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A low profile small diameter raise drill, ideal for slot raises, back filling and narrow vein mining applications. It can be used for conventional raiseboring, downreaming as well as upward boxhole boring. This makes the Robbins 34RH C the most versatile raise drill on the market. The standard frame enables a 720 mm reamer to pass the work table.


Features & benefits

  • Remote controlled hydraulic worktable enables the reamer and stabilizers to pass through the mainframe.
  • The single hydraulic drive power pack features variable speed and excellent torque limiting control
  • Telescopic thrust cylinders provide high thrust in low profile

Technical description



Technical data

Operational data - Derrick
Raise diameter, nominal1.2 m
Raise diameter, range0.6 - 1.5 m
Raise diameter, nominal (Downreaming/boxhole)0.72 m
Raise lenght, nominal340 m
Raise lenght maximum610 m
Reaming thrust1150 kN
RPM, pilot0 - 49 rpm
RPM, reaming0 - 19 rpm
RPM, reaming (reduced torque)19 - 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/s1219 mm
Pilot hole diameter279 mm
Pilot hole optional diameter229 mm
Cooling water (at 25ºC / 77°F inlet temperature)60 l/min
Measurements & weights - Derrick, Conventional raise boring
Height3420 mm
Width1720 mm
Width (pipeloader included)1800 mm
Depth1800 mm
Weight8000 kg
Weight (pipeloader included)9300 kg
Drill angle (from horizontal)60-90 ºangle
Measurements & weights - Derrick, Boxhole mode
Height (muck chute extended)4740 mm
Height (muck chute retracted)3950 mm
Width1720 mm
Width (pipeloaders included)1860 mm
Depth1800 mm
Weight8000 kg
Measurements & weights - Power pack
Length3300 mm
Height1690 mm
Width1600 mm
Weight4700 kg
Performance
Maximum torque, reaming64 kNm
Maximum torque, break out 96 kNm
Stroke1650 mm
Traverse rate, fast traverse rate5.9 m/min
Traverse rate, feed rate3 m/min

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George Apostolopoulos

+233 21 774512

Send an email