#

    LM™75

    MARKETS: Mineral Exploration

    The LM™75 is a mid-sized drill rig for underground diamond coring. It is equipped with a 70kN feed frame for medium hole depth. It is modular in design with a number of options which make it easier to tailor to specific needs and to upgrade when requirements change. With the assistance of a positioner and a turntable the drill is capable of drilling holes in all angles from vertically up to vertically down. The drill uses an electric motor (diesel engine optional) to power the hydraulics on the machine.

    • Direct drive feed frame with 70kN pullback and 1.8m standard feed stroke. Optional 1m or 1.5m feed stroke for confined spaces.
    • Standard Power Pack with 75kW electric motor. 55kW and 90kW electric motor or 99kW diesel engine are also available as options.
    • Standard Self contained control panel with stand and e-stop.
    • Standard Feed Frame Positioner and Turntable (option).
    • HQ™ (HQ™ high torque optional) rotation unit with chuck assembly.
    • HQ™ (PQ™ optional) rod clamp; spring close and hydraulic open.
    • Semi-automated rod handler (optional).

    LM™75 Features

    1. Load Sensing Hydraulics

    Load sensing hydraulics maximize efficiency and reduce heat

    2. Proportional Controls

    Proportional controls and lock levers provide optimum control of rpm and feed

    3. High Torque Breakout

    Automated high torque break out device breaks most rod joints automatically

    4. Fail Safe Rod Clamp

    Hydraulic open and spring close rod clamp results in fail safe operation

    5. Direct Coupled Feed Frame

    Direct coupled feed frame results in lower maintenance and smoother feed transmission

    Semi-automated Rod Handling (Optional-not pictured)

    Semi-automated rod handler (optional) makes handling of rods safer and easier

    Drilling Depth Guidelines

    MetricU.S.
    Vertical Depth Capacity (700 FF)700 m (NRQ)*2,297 ft (NRQ)*
    Drill Rod SizeAQ to PQAQ to 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

    Drill Specification

    Feed Frame (700 Series)MetricU.S.
    Feed Stroke1,830 mm72 in
    Max. rated pushing force53.9 kN @ 28.5 MPa12,080 lbf @ 4130 psi
    Max. rated pulling force81.4 kN @ 28.5 MPa18,250 lbf @ 4130 psi
    Rated carriage speed0.70 m/s per complete cycle3 ft/s per complete cycle
    Normal rod handling speedApproximately 15 m/min.*Approximately 50 ft/minute*
    NoteThe feed frame is reversible
    *Actual rod handling speed may vary with working conditions

    Chuck and Rod Holder

    HQ™ ChuckPQ™ Rod Holder
    Maximum opening97.0 mm (3.82 in) Diameter corresponding to the ID of the HQ™ guide bush125 mm (4.875 in) Diameter corresponding to the ID of the PQ™ guide bush
    TypeClosed hydraulically
    Opened mechanically
    Automatic synchronization
    with rod holder
    Closed mechanically
    Opened hydraulically
    Automatic synchronization
    with chuck Manual overdrive
    Jaws3 (same as used with chuck)3 (same as used with chuck)
    Max. rated axial holding capacity85.0 kN* (19110 lbf*)130 kN* (33750 lbf*)
    Max. rated static torsional holding capacityForward and reverse rotation
    3900 N-m (2870 lbf*)
    Forward and reverse rotation
    5800 N-m (4255 lbf*)
    *At 7 MPa (1015 psi) with new jaws and rods

    Hydrostatic Pumps

    Main PumpMetricU.S.
    Feed StrokeAll drill functions
    ManufacturerRexroth (Hydromatiik Gmbh)
    Operating conditions as used on LM75™ drill: Maximum pressure28.5 MPa, forward rotation, reverse rotation, rod handling4,130 PSI, forward rotation, reverse rotation, rod handling
    Recirculation pumpOil cooling and charge pump
    TypeGear, fixed displacement
    ManufacturerRexroth (Hydromatick Gmbh)
    Maximum pressure operating conditions as used on LM75™ drill1-1.5 Bar14.5-21.8 psi
    Normal speed1,480 RPM @ 50 Hz
    1,780 RPM@ 60 Hz
    Hydraulic tank volume60 L15.8 Gal

    CE Certification

    The CE marking certifies that a product meets EU consumer safety, health or environmental requirements.

    Power Pack

    Metric U.S.
    Power 75 kW 101 hp

    Weight

    Metric U.S.
    Feed Frame 960 kg 2,112 lbs
    Rotation Unit w/chuck 235 kg 517 lbs
    HQ™ Rod Clamp Assembly 170 kg 374 lbs
    Control Panel w/o hoses 46 kg 101 lbs
    Hoses 42 kg 92 lbs
    Power Pack 1,400 kg 3,080 lbs

    Wireline Hoist

    Variable speed hydraulically driven c/w 500 m (1,640 ft) cable
    TypeAll hydraulic, with proportional spooling control power up,
    power down, hydraulically locked in neutral free wheel
    override, chain driven spooling device
    Line Pull
    Bare Drum11.77 kN2649 lb
    Full Drum4.51 kN1015 lb
    Line Speed
    Bare Drum0 - 100 m/min328 ft/min
    Full Drum0 - 254 m/min833 ft/min
    Drum Capacity
    5 mm1400 m4600 ft
    6 mm1000 m3280 ft
    1/4"895 m2930 ft

    Rotation Unit and Chuck Assembly

    HQ™55 High Torque Rotation Unit c/w HQ™ Chuck AssemblyHQ™ capacity head with, hydraulic speed/torque control located on the control panel, 0-1300 nominal rpm maximum, includes hydraulic motor and pipe work complete with "break out device" for ease of undoing rod joints without the need to use wrenches. HQ™ capacity hydraulic operated spring return chuck and includes labels.
    HQ™55 MkII Rotation Unit c/w HQ™ Chuck AssemblyHQ™ capacity head with, hydraulic speed/torque control located on the control panel, 0-1700 nominal rpm maximum, includes hydraulic motor and pipe work complete with "break out device" for ease of undoing rod joints without the need to usewrenches. HQ™ capacity hydraulic operated spring return chuck and includes labels.
    HQ™75 MkII Rotation Unit c/w HQ™ Chuck AssemblyHQ™ capacity head with, hydraulic speed/torque control located on the control panel, 0-1700 nominal rpm maximum, includes hydraulic motor and pipe work complete with "break out device" for ease of undoing rod joints without the need to usewrenches. HQ™ capacity hydraulic operated spring return chuck and includes labels.
    HQ75 High Torque Rotation Unit c/w HQ Chuck AssemblyHQ capacity head with, hydraulic speed/torque control located on the control panel, 0-1300 nominal rpm maximum, includes hydraulic motor and pipe work complete with "break out device" for ease of undoing rod joints without the need to use wrenches. HQ capacity hydraulic operated spring return chuck and includes labels.

    Fluid Pump

    Options Descriptions
    520 Fluid PumpTriplex piston design hydraulic proportional control
    0.76 lpm continuously variable
    3.42 MPa max discharge pressure with relief valve fitted as standard
    535 Water PumpTriplex piston design hydraulic proportional control
    132 L/min continuously variable
    3.42 MPa max discharge pressure with relief valve fitted as standard

    Feed Frame Positioner

    Hydraulically operated, it allows the angle and position of feed frame to be easily set.

    360-Degree Turntable

    This option can only be selected in conjunction with the feed frame positioner. The turntable enables the rig to be rotated without removing ground fixtures - Mechanical 360 degree rotation, c/w dump tilt cylinders.

    Jack Legs

    Available only if the positioner option is selected. The jack leg kits for Feed Frame positioner enables leveling in uneven ground. Complete with Counter Balance valve.

    Towing Group for Feed Frame Positioner

    Towing group with Removable stub shafts and forklift slots as standard.

    Hydraulic Hose Hooks

    Hooks that allow hydraulic hoses to be wrapped around the power pack. 6 hooks in a set.

    Fluroescent Lights

    2 x Fluorescent lights. Plugs into low voltage outlet on the starter

    Remote Start/Stop

    Allows start and stop of electric motor from control panel or other location

    Air Blast Cooler

    This cooler is used in lieu of the standard water cooler in locations where the cost to pipe water to a water oil cooler is high or where water is scarce.