#

    LF™70

    MARKETS: Mineral Exploration

    The LF™70, one of the most recognized small-format drills in the industry, is a flyable rig with a depth capacity of 700 m that can be assembled in less than an hour. With its innovative modular design, this lightweight exploration rig is ideal for drilling in remote locations.

    • 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

    LF™70 Features

    1. Solid Structural Design

    Rigid design provides superior performance and reliability even under the toughest conditions.

    2. Nitro Chuck™

    The patented nitrogen gas spring jaws with hydraulic open/spring-close function ensures a fail-safe operation.

    3. Simple Hydraulic Design

    Direct-coupled hydraulic pumps with a PTO-driven auxiliary pump allow for easy maintenance.

    4. Flyable

    The LF™70 easily breaks down into seven flyable modules with a maximum weight of 585 kg (1,290 lbs).

    5. PQ Rotation Unit

    Four-speed transmission delivers high torque when needed, and high speed for diamond drilling.

    6. Self-Contained Operator Panel

    The simple hydraulic system is easy to operate and maintain while lift-to-shift levers provide additional operator safety

    Drilling Depth Guidelines

    MetricU.S.
    Drill Capacity895 m (NRQ™ V-Wall)*2,936 ft (NRQ™ V-Wall)*
    Drill Rod SizeBQ - PQBQ - 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.
    To view additional drill capacity information click here

    Prime Mover

    MetricU.S.
    Standard UnitCummins QSB 4.5 L, 4 cylinder, turbo charged, after cooled diesel engine.
    Displacement4.5 L275 in3
    Power (maximum) at 2,300 RPM110 kW148 hp
    Emissions CertificationCARB Tier 3 - EU Stage IIICARB Tier 3 - US EPA
    Fly Weight585 kg1,290 lbs
    Displacement4 L263 in3
    Power (maximum) at 2,450 RPMPower (maximum) at 2,450 RPM72 kW98 hp
    Emissions CertificationTier 2
    Fly Weight510 kg1,124 lb

    HQ Drill Head - Optional

    MetricU.S.
    Standard HQ - Hollow Spindle
    Maximum Rod Diameter95 mm4 in
    Rotation MotorRexroth hydraulic motor - variable/reversible
    Mechanical TransmissionFunk 4 speed
    Ratios1st6.63:1
    2nd3.17:1
    3rd1.72:1
    4th1.00:1
    Final DriveRoller chain drive
    Ratio2.58:1
    Head OpenerPivot style — manual operation
    Hydraulic HQ ChuckPatented Nitro-Chuck™
    Hydraulically opened, nitrogen gas spring closed.
    Axial holding capacity of 133 447 N (30,000 lbf)
    Drill Head LubricationForce fed bearings, oil bath for roller chain - PTO driven
    Drill Head Lubrication Oil Filtration25 Micron high pressure oil filter
    Fly Weight390 kg860 lb

    Torque and RPM Ratings - HQ Head

    (Hydraulic motor at maximum/minimum displacement, prime mover at 2,200 RPM)
    Speed (no load)Torque (stall)
    RPMNmlbft
    1st Gear95 - 1903,956 - 2,1272,918 - 1,569
    2nd Gear200 - 4001,891 - 1,0171,395 - 750
    3rd Gear370 - 7301,026 - 552757 - 407
    4th Gear630 - 1,250634 - 341468-251
    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.

    PQ Drill Head - Optional

    MetricU.S.
    Optional PQ - Hollow Spindle
    Maximum Rod Diameter122 mm5 in
    Rotation MotorRexroth hydraulic motor - variable/reversible
    Mechanical TransmissionFunk 4 speed
    Ratios1st6.27:1
    2nd3.12:1
    3rd1.75:1
    4th1.00:1
    Final DriveStraight cut gears
    Ratio2:1
    Head OpenerPivoting style: manual operation
    Hydraulic PQ ChuckPatented Nitro-Chuck™
    Hydraulically opened, nitrogen gas spring closed
    Axial holding capacity of 222 400 N (50,000 lbf)
    Drill Head LubricationForce fed bearings, oil bath for gears - PTO driven
    Drill Head Lubricating Oil Filtration25 micron high pressure oil filter
    Fly Weight580 kg1,279 lb

    Torque and RPM Ratings - PQ Head

    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 - 1993,878 - 2,0272,861 - 1,495
     2nd Gear 246 - 4001,929 - 1,0081,423 - 743
     3rd Gear 439 - 7141,084 - 567800 - 481
     4th Gear 769 - 1,250658 - 344485 - 253
     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.

    Hydraulic System

     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 bar3,500 psi
     Secondary PumpAxial piston, variable displacement load sensing, pressure compensated with low pressure standby.
     Max Flow42 L/m11 gpm
     Maximum Pressure (factory setting)138 bar2,000 psi
     Auxiliary PumpAxial 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 Capacity114 L30 Gal

    Drill Mast and Feed System

    MetricU.S.
    Feed Stroke1.8 m6 ft
    Max Pull Capacity78.6 kN17,671 lbf
    Max Thrust Capacity51.9 kN11,658 lbf
    Rod Pull3 or 6 m10 or 20 ft
    Drilling Angle45° off horizontal to 90° vertical down
    Mast Dump (Crowd)N/A

    Draw Works

     MetricU.S.
     Main LIne HoistSingle speed motor
     Hook Load (single part line)
     Bare Drum5,450 kg12,000 lb
     Hoisting Speed (single part line)
     Bare Drum1 m/min3 ft/min
     Main Hoist Cable15 mm0.59 in
     Minimum Breaking Strength23,042  kg50,800 lb
     NOTE: Do not use multiple part lines with the main line hoist, use single part line ONLY.  
     Foot Clamp CapacityHWT
     Wireline Hoist
     Level Wind                               N/A
     Line Pull
     Bare Drum990 kg2,190 lb
     Full Drum227 kg502 lb
     Line Speed  
     Bare Drum100 m/min337 ft/min
     Full Drum433 m/min1,470 ft/min
     Drum Capacity
    (4.8 mm/3/16” swaged)
    1,890 m6,200 ft
     Minimum Breaking Strength2,268  kg5,000 lb
     NOTE: Wireline cable length to be specified at time of order.

    Additional Information

    MetricU.S.
    Fuel Tank Capacity57 L15 Gal

    Fuel Tank Capacity

    MetricU.S.
    Fuel Tank Capacity57 L15 Gal

    Weight

    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)

    Hydraulic Rod Clamp

    The hydraulic rod clamp is mounted on the foot of the drilling mast and substitutes the holding up tool, wrenches, ball cone clamp, and rod guide. This significantly increases the efficiency and speed of screwing and unscrewing the rods.
    It comes equipped for BQ™ rod to HWT casing jaw sizes.

    Decals Available in Multiple Languages

    English Decals
    Spanish Decals
    Russian Decals

    Rotation Unit

    OptionsDescription
    HQ Rotation Unit GroupThis is a flyable option with weight of 376 kg
    Maximum Rod Diameter:95 mm3.74 in
    Rotation MotorRexroth hydraulic motor - variable/reversible
    Mechanical TransmissionFunk 4 speed
    Ratios1st6.63:1
    2nd3.17:1
    3rd1.72:1
    4th1.00:1
    Roller chainFinal drive with gear ratio 2:1
    Head OpenerPivot style — manual operation
    Patented Nitro-Chuck™Hydraulically opened, nitrogen gas spring closed
    Axial holding capacity of 133 447 N (30,000 lbf)
    Drill Head LubricationForce fed bearings, oil bath for roller chain - PTO driven
    Drill Head Lubrication Oil Filtration25 Micron high pressure oil filter
    PQ Rotation Unit Group This is a non flyable option with weight of 580 kg (1,279 lb)
    Maximum Rod Diameter:122 mm
    Rotation MotorRexroth hydraulic motor - variable/reversible
    Mechanical TransmissionFunk 4 speed
    Ratios1st6.27:1
    2nd3.12:1
    3rd1.75:1
    4th1.00:1
    Final DriveStraight cut gears Ratio 2:1
    Head Opener Pivoting style:Manual operation
    Hydraulic PQ Chuck™
    Patented Nitro-Chuck™Hydraulically opened, nitrogen gas spring closed
    Axial holding capacity of 222 400 N
    Drill Head LubricationForce fed bearings, oil bath for gears - PTO driven
    Drill Head Lubricating Oil Filtration25 micron high pressure oil filter
    Fly Weight580 kg1,279 lb

    Water Cooler for Hydraulics

    Improves hydraulic efficiency if ambient air temperature is above 30 degrees celsius, or when hydraulic oil temperature in reservoir is operating above 71 degrees celsius.

    Mast Raising Cylinders

    The dual acting mast raising cylinders are equipped with counterbalance valves for safe mast positioning.

    Wireline Cable

    OptionsDescription
    Full DrumThe wireline drum is spooled with 4000 ft of 3/16 cable
    Half DrumThe wireline drum is spooled with 2000 ft of 3/16 cable

    Towing Package

    The towing package** includes:
    Tow Bar
    Idler Hubs (2)
    Wheel Assemblies (2)
    ** the package is not highway rated.

    Fluid Circulation Pumps

    OptionsDescription
    W11 PumpThis triplex mud pump is the pump of choice for diamond drilling.

    Output: 132L/m @ 55 Bar (35GPM @ 900PSI

    Direct coupled hydraulic motor for long life and serviceability.

    Each pump module is equipped with a relief valve, pressure gauge, suction and discharge assemblies, lifting bar and skid base.

    Infinitely variable water pump speeds controlled from the operators console for optimum control.

    Mud Mixer

    Having a reliable mud mixer in the field is an integral part of the drilling process, because drilling additives require a homogenous slurry mix to make the most of their lubricating and/or stabilizing properties.
    The robust, reliable and durable slurry/mud mixer has a max speed of 2300rpm at full flow.
    Powered directly from the drill rig’s hydraulic system, it is tough enough to operate in any drilling environment.

    Mud Tank

    This Mud Tank holds 250 gallons of drilling fluid and has 4 outriggers for support.

    Rod Rack Platform

    Enables vertical stacking for quick adding and removing of rods during drilling.
    Horizontal racking of rods saves space during storage or transportation.

    Hand Held Tachometer

    Incorporating the precise laser technology and user-friendly functions, this tachometer provides exceptional accuracy in measuring speed and length via a 12” wheel. The larger wheel rotates more slowly than a standard 6” wheel, enabling reliable and safe registration of high speeds. The instrument also features a contact adapter, conveniently allowing both non-contact and contact measurement.

    Tool Kit

    This tool kit comes equipped with a set of handy tools for performing general maintenance on the drill.

    Paint

    Standard Boart Longyear™ Paint Colors
    Customer Specified Custom Paint Colors