Boart Longyear LF 70

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Brand Boart Longyear

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Boart Longyears LF 70 is the most recognized small-format drills in the industry. It is a flyable rig with a depth capacity of 700 m that can be assembled in less than an hour. This lightweight exploration rig is ideal for drilling in remote locations, with it innovative modular design.

 

  • Self contained operator panel with manually operated hydraulic control valves
  • 5.4 ton capacity mainline hoist
  • 6.4 ton pullback with 6 m pull, direct-coupled feed cylinder with 1.83 m stroke
  • Hollow spindle rotation unit with 4-speed transmission (HQ & PQ configurations available)
  • Nitro-Chuck with 133 kN holding capacity
  • Hydraulic powered rod clamp with BQ rod to HWT casing jaw sizes
  • 45 degree - 90 degree angle capability

PLEASE CONTACT ATLAS MINING AND MANUFACTURING FOR PRICING AND AVAILABILITY.

  Metric   U.S.  
Drill Capacity 895 m (NRQ V-Wall)* 2,936 ft (NRQ V-Wall)*
Drill Rod Size BQ - PQ BQ - PQ
*The figures in these tables are estimates which have been calculated using the applicable pullback capacity of the drill. Actual drilling results may vary and will depend on in-hole tools, subsurface and other environmental conditions, drilling techniques and equipment used.
  Metric U.S.
Standard Unit Cummins QSB 4.5 L, 4 cylinder, turbo charged, after cooled diesel engine.
Displacement 4.5 L 275 in3
Power (maximum) at 2,300 RPM 110 kW 148 hp
Emissions Certification CARB Tier 3 - EU Stage III CARB Tier 3 - US EPA
Fly Weight 585 kg 1,290 lbs
Displacement 4 L 263 in3
Power (maximum) at 2,450 RPMPower (maximum) at 2,450 RPM 72 kW 98 hp
Emissions Certification Tier 2
Fly Weight 510 kg 1,124 lb
  Metric U.S.
Standard Unit Cummins QSB 4.5 L, 4 cylinder, turbo charged, after cooled diesel engine.
Displacement 4.5 L 275 in3
Power (maximum) at 2,300 RPM 110 kW 148 hp
Emissions Certification CARB Tier 3 - EU Stage III CARB Tier 3 - US EPA
Fly Weight 585 kg 1,290 lbs
Displacement 4 L 263 in3
Power (maximum) at 2,450 RPMPower (maximum) at 2,450 RPM 72 kW 98 hp
Emissions Certification Tier 2
Fly Weight 510 kg 1,124 lb
(Hydraulic motor at maximum/minimum displacement, prime mover at 2,200 RPM)
  Speed (no load) Torque (stall)  
  RPM Nm lbft
1st Gear 95 - 190 4,610 - 2,305 3,400 - 1,700
2nd Gear 200 - 400 2,170 - 1,085 1,600 - 800
3rd Gear 370 - 730 950 - 610 700 - 450
4th Gear 630 - 1,250 680 - 340 500 - 250
 
NOTE: Head output speed and torque are infinitely variable in each gear range as indicated.NOTE: Head output speed and torque are infinitely variable in each gear range as indicated.
Actual rotation speed is affected by engine RPM and hydraulic motor displacement setting.Actual rotation speed is affected by engine RPM and hydraulic motor displacement setting.
  Metric U.S.
 (Hydraulic motor at maximum/minimum displacement, prime mover at 2,200 RPM)
  Speed (no load) Torque (stall)
  RPM  Nm  lbft
 1st Gear  122 - 199  5,322 - 3 254  3,925 - 2,400
 2nd Gear  246 - 400  2,648 - 1 620  1,953 - 1,195
 3rd Gear  439 - 714  1,486 - 908  1,096 - 670
 4th Gear  769 - 1,250  849 - 519  626 - 383
 NOTE: Head output speed and torque are infinitely variable in each gear range as indicated.
 Actual rotation speed is affected by engine RPM and hydraulic motor displacement setting.
 Primary Pump  Axial piston, variable displacement load sensing, pressure compensated with low pressure standby.
 Max Flow  163 L/m  43 gpm
 Maximum Pressure (factory setting) 241 bar 3,500 psi
 Secondary Pump Axial piston, variable displacement load sensing, pressure compensated with low pressure standby.
 Max Flow 42 L/m 11 gpm
 Maximum Pressure (factory setting) 138 bar 2,000 psi
 Auxiliary Pump Axial piston, variable displacement load sensing, pressure compensated with low pressure standby.
 Max Flow  42 L/m  11 gpm
 Maximum Pressure (factory setting) 138 bar  2,000 psi
 Hydraulic Tank Capacity 114 L 30 Gal
  Metric U.S.
Feed Stroke 2 m 6 ft
Pull Capacity @ 2,000 psi 6,414 kg 14,137 lbf
Thrust Capacity @ 2,000 psi 4,231 kg 9,326 lbf
Rod Pull 3 or 6 m 10 or 20 ft
Drilling Angle 45° off horizontal to 90° vertical down #colspan#
Mast Dump (Crowd) N/A #colspan#

 

  Metric U.S.
 Main LIne Hoist Single speed motor
 Hook Load (single part line)
 Bare Drum 5,450 kg 12,000 lb
 Hoisting Speed (single part line)
 Bare Drum 1 m/min 3 ft/min
 Main Hoist Cable 15 mm 0.59 in
 Minimum Breaking Strength 23,042  kg 50,800 lb
 NOTE: Do not use multiple part lines with the main line hoist, use single part line ONLY.  
 Foot Clamp Capacity HWT
 Wireline Hoist
 Level Wind                                N/A
 Line Pull    
 Bare Drum 990 kg 2,190 lb
 Full Drum 227 kg 502 lb
 Line Speed    
 Bare Drum 100 m/min 337 ft/min
 Full Drum 433 m/min 1,470 ft/min
 Drum Capacity
(4.8 mm/3/16” swaged)
1,890 m 6,200 ft
 Minimum Breaking Strength 2,268  kg 5,000 lb
 NOTE: Wireline cable length to be specified at time of order.
  Metric U.S.
Fuel Tank Capacity 57 L 15 Gal
Weight - Fly Drill = 3,220 kg (6,500 lb)
Consisting of:
Cummins 4.5 L QSB , Tier 3, 4 cylinder, water cooled, turbo charged, diesel engine
Hydraulic Module
Draw Works Grp. c/w 12,000 lb Main Line Hoist, Wireline Hoist
3 Piece Lattice Mast Assembly
HQ Rotation Unit Grp. c/w Nitro-Chuck
Base Frame
Fuel Tank (57 L/15 US gal)
Battery - 12V
Stabilizer Legs (4)