Caterpillar MD6240 Base

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