MD6240 Rotary Drill

MD6240 Rotary Drill

Download the Product Brochure
Continue Browsing

High productivity and low cost of ownership is yours with the MD6240 Rotary Drill. With bit load force of 24 000 kg (52,911 lb) and the capability to drill depths up to 55.47 m (182 ft) the MD6240 is well equipped to drill in hard or soft rock applications. Built to be reliable, safe and easy to service for years to come.

Basic Specifications

Bit Load
24 000 kg (52,911 lb)
Hole Diameter
152-244 mm (6-9.625 in)
Engine
C27 (Tier 2) – 597 kW (800 hp) at 2,100 rpm
Compressor
48 m³/min (1,700 ft³/min) 6.9 bar (100 psi)
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)

Rated Capacity

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)
Bit/hole diameter
152-244 mm (6-9.625 in)
Depth multi-pass (12 m/39 ft mast)
Up to 55.47 m (Up to 182 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)
30 ° F

Pull-down/Hoisting Capacity

Adjustable head guide shoes
Steel with replaceable Nylatron
Cable sheaves (cylinder) OD
16.0 in
Cable sheaves (top and bottom) OD
20.0 in
Cylinder bore – diameter
6.5 in
Cylinder rod – diameter
4.0 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
Sheave guards
Standard at bottom plate
Type
Closed-loop, hydraulic (stationary rod, moving barrel)
Automatic cable
Hydraulic cylinder, tensioning
Cable type 25 mm (1 in)
DYFORM 8
Drilling feed/retract rate
0-39.3 m/min (0-129 ft/min)
Head travel (12 m/39 ft)
572.4 in
Head travel (15 m/49 ft)
693.0 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)

Rotary Drive System

Drive motor
See Hydraulic System
Gearbox
Casting design
Horsepower capacity
182 hp
Gearing
Straight spur
Lubrication
Oil-flooded
Main thrust bearing
Taper roller
Ratio
16:1
Rotation speed
0-220 rpm
Torque
0-13 015 N·m (0-9,600 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
Drive
Direct coupled to engine flywheel
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)
Discharge air flow (sea level)
1700 ft3/min
Maximum operating pressure
100 psi
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

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

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 Tier 2 rated horsepower
1050.0 hp
Optional fuel tank
415.0 gal
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

Construction
12 gauge steel welded to formed 12 gauge channel and angle supports
Door latches
Heavy-duty latches with lockable handles
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
Operator’s seat
One swivel-type with armrests, headrest and retractable seat belt
Right door
Swing-type HD hinge
Sound levels
80 dB(A) or less
Width at floor
59.75 in
Climate control
Wall-mounted, AC/heating/pressurizing unit
Floor area
32.4 ft2
Height inside
76.5 in
Number of doors
2 with windows (included above)
Number of windows
10
Other
Window wipers and washers
Type
Shock-mounted; two-man, integrated FOPS certified
Windows (tinted safety glass in rubber mounting)
0.25 in

Undercarriage

Final drive
Independent hydrostatic motors
Overall length
224.6 in
Pad type
Triple grouser
Pad width
29.5 in
Rear axle (solid)
8.0 in
Rollers
Sealed, oil-flooded
Type
Excavator type
Upper track chain support
Two (2) carrier rollers
Width over tracks
154.0 in
Brakes
Spring set, hydraulic release
Front axle
Three-point oscillating type
Gradeability mast down
48%/25.6 degrees
Maximum drive horsepower per track
204.0 hp
Number of lower rollers
12
Rock guards/chain guides
Standard full-length guards
Tram speed maximum
1.25 mph

Mainframe

Construction
Electric welded
Handrails – Diameter
1.9 in
Handrails – Height
48.0 in
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
Jacks, mast pivot and deck
Welded integrally to mainframe
Machine deck
Access both sides

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
Location
2 front; 2 rear
Pad connection
Ball and socket
Lift capacity
65300 lbf
Number
4
Pad diameter
24 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 ft3/min
Note
Both dry and water injection can be mounted on the same drill

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

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

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)

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)
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
Type
Carousel, with stationary pods and breaker plates

Winch System

Cable size
0.5 in
Capacity
3500 lb

Accessories, Tools and Handling Equipment

Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Diameter (customer specification)
114-178 mm (4.5-7.0 in)
Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Wall thickness
0.75 in
Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Length
35 ft
Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Threads
Depends on pipe diameter
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Diameter (customer specification)
114-178 mm (4.5-7.0 in)
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Wall thickness
0.75 in
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Length
25 ft
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Threads
Depends on pipe diameter
Top Adapter Sub – Diameter
Depends on pipe diameter
Top Adapter Sub – Length
28 in
Top Adapter Sub – Top thread (API Reg.)
5.5 in
Top Adapter Sub – Bottom thread
Depends on pipe diameter
Bit Sub – Table bushing
One (1) piece insert, roller deck bushing or two-piece