Caterpillar-MD6240

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Caterpillar MD6240 Base

Variants

Specifications of Caterpillar MD6240 Base

Specifications

  • Bit Load 24 000 kg (52,911 lb)
  • Compressor 48 m³/min (1,700 ft³/min) 6.9 bar (100 psi)
  • Engine C27 (Tier 2) - 597 kW (800 hp) at 2,100 rpm
  • Engine Cat® C27 Tier 2 597 kW (800 hp) at 2,100 rpm
  • Hole Depth Single-pass (12 m/39 ft mast) Up to 12.80 m (42 ft)/Multi-pass Up to 55.47 m (182 ft)
  • Hole Depth Single-pass (15 m/49 ft mast) Up to 15.85 m (52 ft)/Multi-pass Up to 31.08 m (102 ft)
  • Hole Diameter Hole Diameter 152-270 mm (6-10.625 in)

Hydraulic System

  • Fan Drive Motor(s) - Single Fan - Pressure rating (continuous) 6000.0 psi
  • Fan Drive Motor(s) - Single Fan - Type Piston
  • Fan/Accessory Circuit Pump (Open-loop) - Maximum flow - dual fan (one per cooler) 72.0 gal/min
  • Fan/Accessory Circuit Pump (Open-loop) - Pressure rating 5000.0 psi
  • Fan/Accessory Circuit Pump (Open-loop) - Type Axial piston, variable volume
  • Filtration (all filters have indicators and bypass) - Case return 12 micron
  • Filtration (all filters have indicators and bypass) - Charge 3 micron, 1 per loop
  • Filtration (all filters have indicators and bypass) - Loop 12 micron, 2 per loop (optional)
  • Filtration (all filters have indicators and bypass) - Main return 12 micron absolute
  • Left and Right Track/Rotation Pump (Closed-loop) - Maximum flow 75.0 gal/min
  • Left and Right Track/Rotation Pump (Closed-loop) - Pressure rating 5800.0 psi
  • Left and Right Track/Rotation Pump (Closed-loop) - Type Axial piston, variable volume
  • Pump Drive Gearbox - Drive Rubber coupler/drive shaft to front of engine
  • Pump Drive Gearbox - Type 3 pad
  • Rotation Drive Motor - Pressure rating 5000.0 psi
  • Rotation Drive Motor - Type Axial piston variable volume
  • Track Drive Motors (2) - Pressure rating 6000.0 psi
  • Track Drive Motors (2) - Type Bent-axis fixed volume

Undercarriage

  • Brakes Spring set, hydraulic release
  • Final drive Independent hydrostatic motors
  • Front axle Three-point oscillating type
  • Gradeability mast down 32%
  • Maximum drive horsepower per track 204.0 hp
  • Number of lower rollers 12
  • Overall length 224.6 in
  • Pad type Triple grouser
  • Pad width 29.5 in
  • Rear axle (solid) 8.0 in
  • Rock guards/chain guides Standard full-length guards
  • Rollers Sealed, oil-flooded
  • Tram speed maximum 1.25 mph
  • Type Excavator type
  • Upper track chain support Two (2) carrier rollers
  • Width over tracks 154.0 in

RATED CAPACITY

  • Bit/hole diameter 152-270 mm (6-10.625 in)
  • Depth multi-pass (12 m/39 ft mast) Up to 55.47 m (Up to 182 ft)
  • Depth multi-pass (15 m/49 ft mast) Up to 31.08 m (Up to 102 ft)
  • Depth single-pass (12 m/39 ft mast) Up to 12.80 m (Up to 42 ft)
  • Depth single-pass (15 m/49 ft mast) Up to 15.85 m (Up to 52 ft)

OPERATING TEMPERATURE

  • Altitude Up to 4572 m (Up to 15,000 ft)
  • Cold weather option -40.0 ° F
  • Maximum ambient rating (standard) 125.0 ° F
  • Minimum ambient rating (standard) -20.0 ° F

PULL-DOWN/HOISTING CAPACITY

  • Adjustable head guide shoes Steel with replaceable Nylatron
  • Automatic cable Hydraulic cylinder, tensioning system powered by fan circuit
  • Cable sheaves (cylinder) OD 16.0 in
  • Cable sheaves (top and bottom) OD 20.0 in
  • Cable type - 25 mm (1 in) DYFORM 8
  • Cylinder bore - diameter 6.5 in
  • Cylinder rod - diameter 4.0 in
  • Drilling feed/retract rate 0-38.1 m/min (0-125 ft/min)
  • Head travel (12 m/39 ft) 572.4 in
  • Head travel (15 m/49 ft) 693.0 in
  • Number of cylinders 1
  • Pull-down cylinder stroke (12 m/39 ft) 286.2 in
  • Pull-down cylinder stroke (15 m/49 ft) 346.5 in
  • Rated hoist capacity Up to 222 kN (Up to 50,000 lbf)
  • Rated pull-down capacity Up to 222 kN (Up to 50,000 lbf)
  • Sheave guards Standard at bottom plate
  • Type Closed-loop, hydraulic (stationary rod, moving barrel)

ROTARY DRIVE SYSTEM

  • Drive motor See Hydraulic System
  • Gearbox Casting design
  • Gearing Straight spur
  • Horsepower capacity 186.0 hp
  • Lubrication Oil-flooded
  • Main thrust bearing Taper roller
  • Ratio 16:1
  • Rotation speed 0-220 rpm
  • Torque 0-12 880 N·m (0-9,500 ft-lb)

COOLER ASSEMBLY

  • Compressor cooler - Height 72.0 in
  • Compressor cooler - Width 64.0 in
  • Engine radiator, top tank Sealed deaeration tank, pressure cap, overflow tube and sight glass
  • Fan diameter (one fan per cooler, 10 blades) 48.0 in
  • Fan guard Welded
  • Fan speed - maximum 1525.0 RPM
  • Radiator/hydraulic cooler - Height 58.0 in
  • Radiator/hydraulic cooler - Width 58.0 in
  • Special Note Split coolers, air-finned, three- or four-core, radiator/hydraulic stacked, compressor separate
  • Standard ambient rating 125.0 ° F

COMPRESSOR (STANDARD)

  • Air cleaner type Dry-type with safety element
  • Air shut-off Hydraulic cylinder-operated from operator’s seat
  • Controls Automatic with safety shut-down
  • Discharge air flow (sea level) 1700.0 cfm
  • Drive Direct coupled to engine flywheel
  • Maximum operating pressure 100.0 psi
  • Oil cooling Air-to-oil cooler, thermostatically controlled
  • Oil filtration 12 micron replaceable element
  • Oil separation Vertical barrier element, pre-separation in 189 L (50 gal) horizontal sump (T-tank)
  • Type Oil-flooded, single-stage screw

COMPRESSOR (OPTIONAL)

  • Air cleaner Dry-type with safety element
  • Discharge air flow (sea level) 33 m3/min (1,150 ft3/min); 38 m3/min (1,350 ft3/min); 43 m3/min (1,500 ft3/min)
  • Maximum operating pressure 10.3/24.1 bar or 10.3/24.1/34.5 bar (150/350 psi or 150/350/500 psi)
  • Type (high pressure) Oil-flooded, two-stage screw

ENGINE (STANDARD) - C27 TIER 2

  • Air cleaner type Dry-type with safety element
  • Batteries Four (4) 8-D
  • Fuel tank 350.0 gal
  • Full load 2100.0 RPM
  • Jacket water cooling/CAC Radiator
  • Manifold covers Blankets and/or exhaust wrap
  • Manufacturer Caterpillar
  • Model C27 Tier 2
  • Muffler (inlet and outlet) 5.0 in
  • Muffler guard 10 gauge for personal protection
  • Optional fuel tank 415.0 gal
  • Optional rated horsepower 875.0 hp
  • Rated horsepower 800.0 hp
  • Safety shut-down system Energized to run
  • Starting system 24V DC

ENGINE (OPTIONAL) - QST-30

  • Air cleaner type Dry-type with safety element
  • Batteries Four (4) 8-D
  • Fuel tank 350.0 gal
  • Full load 2100.0 RPM
  • Jacket water cooling Radiator
  • Model QST-30 (Non-Cert)
  • Muffler (inlet and outlet) 5.0 in
  • Muffler guard 10 gauge for personal protection
  • Optional fuel tank 415.0 gal
  • Optional Tier 2 rated horsepower 1050.0 hp
  • Rated horsepower 1050.0 hp
  • Safety shut-down system Energized to run
  • Starting system 24V DC
  • Turbo and manifold covers Blankets and/or exhaust wrap

MAST

  • Construction ASTM 500 grade B rectangular tubing, welded
  • Hose tray Sheet steel trough for moving hoses
  • Hydraulic lines Pressure-rated steel hydraulic tubing
  • Pivot and raising area Rectangular tubing A-frame; reinforced in high-stress areas
  • Table hole diameter (diameter deck hole for guide bushing) 11.0 in

MAST - ELEVATING CYLINDERS

  • Cylinder bore diameter 8.0 in
  • Cylinder connection pins diameter 2.25 in
  • Cylinder rod diameter 4.0 in
  • Cylinder stroke 42.6 in
  • Lift capacity each cylinder 125065.0 lb
  • Number of cylinders 2

OPERATOR’S CAB

  • Climate Control Wall-mounted, AC/heating/pressurizing unit
  • Construction 12 gauge steel welded to formed 12 gauge channel and angle supports
  • Door latches Heavy-duty latches with lockable handles
  • Floor area 32.4 ft2
  • Height inside 76.5 in
  • Helper’s seat Fixed folding jump seat
  • Insulation, floor [closed-cell foam with 3 mm (0.125 in) pyramid vinyl surface] 0.375 in
  • Insulation, wall and ceiling (thermal) 1.0 in
  • Left door to work deck Swing-type HD hinge
  • Length at floor 78.0 in
  • Number of doors 2 with windows (included above)
  • Number of windows 10
  • Operator’s seat One swivel-type with armrests, headrest and retractable seat belt
  • Other Window wipers and washers
  • Right door Swing-type HD hinge
  • Sound levels 80 dB(A) or less
  • Type Shock-mounted; two-man, integrated FOPS certified
  • Width at floor 59.75 in
  • Windows (tinted safety glass in rubber mounting) 0.25 in

MAINFRAME

  • Construction Electric welded
  • Handrails - Diameter 1.9 in
  • Handrails - Height 48.0 in
  • Jacks, mast pivot and deck Welded integrally to mainframe
  • Machine deck Access both sides
  • Main rails (ASTM 500 Grade B rectangular tubing heavily cross-braced and reinforced at high-stress areas) 203 mm × 406 mm × 13 mm (8 in × 16 in × 0.5 in)
  • Toolbox Lockable door, below cab side walkway
  • Tow hooks Welded, two (2) front

MAINFRAME - LEVELING JACKS

  • Counterbalance valves Internal at each cylinder
  • Cylinder bore 5.5 in
  • Cylinder rod diameter 3.0 in
  • Cylinder stroke 60.0 in
  • Inner extension boot - Outside diameter 8.625 in
  • Inner extension boot - Wall 0.322 in
  • Lift capacity 65300.0 lb
  • Location 2 front; 2 rear
  • Number 4
  • Pad connection Ball and socket
  • Pad diameter 24.0 in

DRILL TABLE AND WORK DECK

  • Deck floor material Non-skid sheet metal
  • Drill deck area 73.8 ft2
  • Drill deck length 104.75 in
  • Drill deck width 101.5 in
  • Table height off ground 52.0 in

DUST SUPPRESSION

  • Dust collector capacity 4500.0 cfm

DUST CURTAIN (OPTIONAL HYDRAULIC LIFTERS, FRONT AND REAR)

  • Enclosed area 45.14 ft2
  • Material (rubber nylon reinforced) 0.25 in
  • Split for excess Front and rear with 305 mm (12 in) overlap

OIL COOLING SYSTEM (HYDRAULIC TANK)

  • Reservoir pressure Atmospheric, filtered breather
  • Reservoir with sight and temperature gauge 170.0 gal

LUBRICATION

  • Type Centralized manual (optional auto-lubrication)

PIPE RACK (OUTSIDE THE MAST)

  • 12 m (39 ft) mast arrangement 4 pods; 10.67 m (35 ft) long pipe
  • 15 m (49 ft) mast arrangement 2 pods; 7.62 m (25 ft) long pipe
  • Pipe rack index Hydraulic motor through chain drive
  • Pipe rack swing Hydraulic cylinders (2)
  • Size of drill pipe/capacity 114-178 mm (4.5-7 in)
  • Type Carousel, with stationary pods and breaker plates

WINCH SYSTEM

  • Cable size 0.5 in
  • Rating 3500.0 lb

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