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Rig #20 LF 90D

 

 

Rig Boart Longyear LF 90
Drill Type Diamond Rig PQ to BQ
Drill Method Chuck Type
Mounting Hydraulic Jack Leg Skid
Length 6m
Width 2.4m
Height Mast Down 2.4m
Height Mast Up 9m
Power Unit Cummins 6BTA (5.9L) liquid cooled, turbo charged, after cooled, diesel engine. 149kW (200hp)
Hydraulic System  
Primary Pump Parker axial piston, variable displacement, load sensing, pressure compensated with low pressure standby
Max Flow 165lpm - 43.5Gpm
Max Pressure 31Mpa - 4500psi
Secondary Pump Parker axial piston, variable displacement, load sensing, pressure compensated with low pressure standby
Max Flow 64lpm - 17Gpm
Max Pressure 21Mpa - 3000psi
Auxilary Pump Eaton axial piston, variable displacement, pressure compensated with low pressure
Max Flow 421lpm - 11Gpm
Max Pressure 14Mpa - 2000psi
Drill Head  
Hollow Spindle Inside Diameter 127mm
Rotation Motor Rexroth Hyraulic Motor - Variable/Reversable
Mechanical Transmission Ratios

1st - 6.27:1
2nd - 3.12:1
3rd - 1.75:1
4th - 1.00:1

Access Safety steps to deck
Emergency Stops At back of rig and on both sides
Fire Suppression Fire extinguishers fitted
Full AFFF fitted plus automatic engine shutdown
Air Compressor Atlas Copco XRH400
8 Cylinder GM8V-92 Turbo
800 CFM 290 Psi
Drilling Capacities
(based on good drilling conditions)
NQ - 500m
HQ - 300m
RC 4' - 150m