Redpath Mining  |  Raise Drills  |  Redbore 40
Redbore 40
The Redbore 40 raisedrill is a small compact drill designed primarily for production slot programs. The drill can be configured for downreaming Redbore 40-SDR. Nominal capacities range from 28.5 in. (724 mm) up to 5 ft. (1.52 m) diameter with lengths of raise up to 500 ft. (152 m).

Dimensions
Retracted Height 139-13/16”
(3.55 m)
Extended Height 119-5/8”
(3 04 m)
Transport Length * 118-1/4”
(3 00 m)
Transport Width * 55-3/4”
(1.42 m)
Transport Height * 53-1/2”
(1.40 m)
Transport Weight * 11,556 lbs
(5 253 kg)
*(excluding base plates/pipe loader/erector)
 
Thrust System
Thrust System Type Hydraulic Cylinders
Maximum Pilot Hole Force 50,000 lbs
(222 kN)
Maximum Reaming Force 230,000 lbs
(1 023 kN)
Maximum Operating Pressure 3,000 psi
(20 684 kPa)
 
Rotation System
Rotation System Type Hydraulic Motor
Pilot Hole rpm 0 - 80 Variable
Pilot Hole Torque
@ 40 rpm
5,000 ft-lbs
(6.78 kN.m)*
Reaming rpm 0 - 12 Variable
Transport Height * 53-1/2”
(1.40 m)
Reaming Torque
@ 9 rpm
33,750 ft-lbs (45.75 kN.m)*
Makeup Torque 38,000 ft-lbs
(51.5 kN.m)
Breakout Torque 42,000 ft-lbs
(56.9 kN.m)*
Operating Pressure 3,000 psi
(20 670 kPa)
*(values calculated at 90% efficiency)
 
Drill String
Raise Angle Range 55º to Vertical
Pilot Hole Diameter 228 mm x 121.92 m
Drill Pipe Diameter 8”
(203.2 mm)
Drill Pipe Length 60”
(1.52 m) s/s
(Hydraulically operated upper and lower rod wrench)

redbore40

 

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