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MD6290 Rotary Blasthole Drill

MD6290 Rotary Blasthole Drill

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Specifications

Bit Load
up to 23 733 kg (up to 52,321 lb)
Hole Diameter
152 - 250 mm (6.0 - 9.875 in)
Engine
C15 ACERT - 403 kW (540 hp) at 2,100 rpm
Multi-Pass Hole Depth (10 m Mast)
Up to 52.7 m (173 ft)
Multi-Pass Hole Depth (11 m Mast)
Up to 32.3 m (106 ft)
Multi-Pass Hole Depth (8 m Mast)
Up to 45.1 m (148 ft)
Single-Pass Hole Depth (10 m Mast)
Up to 10.1 m (33 ft 2 in)
Single-Pass Hole Depth (11 m Mast)
Up to 11.0 m (36 ft)
Single-Pass Hole Depth (8 m Mast)
Up to 8.6 m (28 ft 2 in)
Working Weight
120152.0 lb

Rated Capacity

Depth multi-pass (10 m/32 ft 9¾ in mast)
Up to 52.7 m (Up to 173 ft 0 in)
Depth multi-pass (8 m/26 ft 3 in mast)
Up to 45.1 m (Up to 148 ft 0 in)
Depth single-pass (10 m/32 ft 9¾ in mast)
Up to 10.1 m (Up to 33 ft 2 in)
Depth single-pass (11 m/36 ft 0 in mast)
Up to 11.0 m (Up to 36 ft 0 in)
Depth single-pass (8 m/26 ft 3 in mast)
Up to 8.6 m (Up to 28 ft 2 in)
Bit/hole diameter
152-250 mm (6-9.875 in)
Depth multi-pass (10 m/32 ft 9¾ in mast)
Down to 52.7 m (Down to 173 ft 0 in)

Operating Temperature

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

Pull-down/Hoisting Capacity

Cable sheaves (cylinder) – outside diameter
16.0 in
Cable sheaves (top and bottom) – outside diameter
22.0 in
Cylinder bore – diameter
7.0 in
Cylinder rod – diameter
5.0 in
Head travel (11 m/36 ft 0 in mast)
492.0 in
Head travel (8 m/26 ft 3 in mast)
404.0 in
Number of cylinders
1
Pull-down cylinder stroke (10 m/32 ft 9¾ in mast)
232.0 in
Pull-down cylinder stroke (11 m/36 ft 0 in mast)
246.0 in
Pull-down cylinder stroke (8 m/26 ft 3 in mast)
202.0 in
Sheave guards
Standard at bottom plate
Type
Open-loop, hydraulic (stationary barrel, moving rod)
Bit load force
Up to 23 733 kg (Up to 52,321 lb)
Cable type – 25 mm (1 in)
DYFORM 8
Feed rate
0-44.8 m/min (0-147 ft/min)
Head travel (10 m/32 ft 9¾ in mast)
464.0 in
Rated hoist capacity
Up to 21 364 kg (Up to 47,100 lbf)
Rated pull-down capacity
Up to 27 216 kg (Up to 60,000 lbf)
Retract rate
0-46.6 m/min (0-153 ft/min)

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
0-12 880 N·m (0-9,600 lbf-ft)

Mast

Construction
ASTM 500 grade B rectangular tubing, welded
Hose rack
Sheet steel trough for moving hoses
Hydraulic lines
Pressure-rated steel hydraulic tubing
Main chord size – Front
203 mm × 102 mm × 6 mm (8 in × 4 in × 0.25 in)
Main chord size – Rear
102 mm × 102 mm × 13 mm (4 in × 4 in × 0.5 in)
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
7.0 in
Cylinder connection pins diameter
1.75 in
Cylinder rod diameter
3.5 in
Cylinder stroke
38.0 in
Lift capacity each cylinder
105800.0 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
Location
To the right from the mast if facing rear deck from the rear end
Operator’s seat
One swivel-type with armrests, headrest and retractable seatbelt
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
32.40 ft2
Height inside
76.50 in
Number of doors
2 with windows (included in 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, 2-speed motors
Gradeability mast down
32%
Overall length (variable with adjustment)
200.0 in
Pad type
Triple grouser
Pad width
29.5 in
Rear axle (solid)
8.0 in
Rollers
Sealed, oil-flooded
Track adjustment means
Hydraulic with grease gun
Track drive disconnect
Standard (manual)
Upper track chain support
Two (2) carrier rollers
Width over tracks
154.0 in

Undercarriage – Cat 336L

Brake release
Automatic
Brakes
Spring set, hydraulic release
Front
Three-point oscillating type
Maximum drive horsepower per track
196 hp
Number of rollers on each side
10
Rock guards/chain guides
Standard full-length guards
Tram speed – Maximum
1.95 mph
Tram speed – Low speed
1.3 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

Drill Table and Work Deck

Deck floor material
Non-skid sheet metal
Drill deck length
104.75 in
Drill deck width
101.5 in
Hand rails – Diameter
1.9 in
Hand rails – Height
48.0 in
Drill deck area
73.8 ft2
Table height off ground
52 in

Dust Curtain (Optional Hydraulic Lifters, Front and Rear)

Dust deflector
Natural rubber seal
Dust deflector – Diameter
14.0 in
Dust deflector – Thickness
0.5 in
Enclosed area
45.14 ft2
Location
Directly below table bushing
Material (rubber nylon reinforced)
0.25 in
Split for excess
Front and rear with 305 mm (12 in) overlap

Hydraulic System

Accessory Circuit/Feed Pump (Open-loop) – Maximum flow
75.0 gal/min
Accessory Circuit/Feed Pump (Open-loop) – Pressure rating
3335.0 psi
Accessory Circuit/Feed Pump (Open-loop) – Type
Axial piston, variable volume
Fan Circuit Pump – Maximum flow (dual fan)
65.0 gal/min
Fan Circuit Pump – Maximum flow (single fan)
57.0 gal/min
Fan Circuit Pump – Pressure rating
3000.0 psi
Fan Circuit Pump – Type
Gear
Fan Drive Motor(s) – Dual fan
2
Fan Drive Motor(s) – Pressure rating (continuous)
6000.0 psi
Fan Drive Motor(s) – Single fan
1
Fan Drive Motor(s) – Type
Piston
Filtration (all filters have indicators and bypass) – Case return
12 micron absolute
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 Track/Rotation Pump (Closed-loop) – Maximum flow
69.3 gal/min
Left Track/Rotation Pump (Closed-loop) – Pressure rating
5510.0 psi
Left 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
Right Track Pump (Closed-loop) – Maximum flow
69.3 gal/min
Right Track Pump (Closed-loop) – Pressure rating
5510.0 psi
Right Track Pump (Closed-loop) – Type
Axial piston, variable volume
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) – Two-speed
107/125 cc
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)

Engine (Standard) – C15

Air cleaner type
Dry-type with safety element
Batteries
Two (2) 8-D
Engine shut-down system
Energized to run
Full load
2100.0 RPM
Jacket water cooling/CAC
Radiator
Manufacturer
Caterpillar
Muffler (inlet and outlet)
5.0 in
Muffler guard
10 gauge for personal protection
Starting system
24V DC
Turbo and manifold covers
Blankets and/or exhaust wrap
Fuel tank
365 gal
Model
C15 ACERT*
Optional fuel tank
283 gal
Rated horsepower
540 hp
Note
*U.S. EPA Tier 3/EU Stage IIIA equivalent

Engine (Optional) – C27

Air cleaner type
Dry-type with safety element
Air cleaner type
Dry-type with safety element
Batteries
Four (4) 8-D
Batteries
Four (4) 8-D
Engine shut-down system
Energized to run
Engine shut-down system
Energized to run
Full load
2100.0 RPM
Full load
2100.0 RPM
Jacket water cooling/CAC
Radiator
Jacket water cooling/CAC
Radiator
Manifold covers
Blankets and/or exhaust wrap
Manifold covers
Blankets and/or exhaust wrap
Manufacturer
Caterpillar
Manufacturer
Caterpillar
Muffler (inlet and outlet)
5.0 in
Muffler (inlet and outlet)
5.0 in
Muffler guard
10 gauge for personal protection
Muffler guard
10 gauge for personal protection
Optional fuel tank
283.0 gal
Optional fuel tank
283.0 gal
Starting system
24V DC
Starting system
24V DC

Engine (Optional) – C27: Option 1

Fuel tanks
1382 L (365 gal)
1071 L (283 gal)
Model
C27 ACERT*
Rated horsepower
800 hp
Note
*Tier 2 equivalent

Engine (Optional) – C27: Option 2

Fuel tanks
1382 L (365 gal)
1071 L (283 gal)
Model
C27 ACERT*
Rated horsepower
875 hp
Note
*Tier 2 equivalent

Engine (Optional) – QSK-19 (Non-Cert)

Air cleaner type
Dry-type with safety element
Batteries
Four (4) 8-D
Engine shut-down system
Energized to run
Fuel tank
365.0 gal
Full load
2100.0 RPM
Jacket water cooling
Radiator
Manifold covers
Blankets and/or exhaust wrap
Manufacturer
Cummins
Model
QSK-19 (Non-Cert)
Muffler (inlet and outlet)
5.0 in
Muffler guard
10 gauge for personal protection
Optional fuel tank
283.0 gal
Rated horsepower
750.0 hp
Starting system
24V DC

Engine (Optional) – QSK-19 (Tier 2)

Air cleaner type
Dry-type with safety element
Batteries
Four (4) 8-D
Engine shut-down system
Energized to run
Fuel tank
365.0 gal
Full load
2100.0 RPM
Jacket water cooling/CAC
Radiator
Manifold covers
Blankets and/or exhaust wrap
Manufacturer
Cummins
Model
QSK-19 (Tier 2)
Muffler (inlet and outlet)
5.0 in
Muffler guard
10 gauge for personal protection
Optional fuel tank
283.0 gal
Rated horsepower
760.0 hp
Starting system
24V DC

Operator’s Controls

Filter Indicators
Filter indicators for engine and compressor intake, filter indicators are standard
Filter Indicators
Hydraulic fluid system, indicator lights for interlocks, rotary head rpm gauge and heating systems control are optional
Location
Console at front and side cab wall, placed 45° to the deck
Standard Compressor Controls
Compressor temperature
Standard Compressor Controls
Air pressure gauge
Standard Compressor Controls
Air shut-off control (electric) (high air temperature)
Standard Drilling Controls
Level indicator (bubble)
Standard Drilling Controls
On/off light switch (electric)
Standard Drilling Controls
Wiper/washer controls (electric)
Standard Drilling Controls
Deck wrench control (electric)
Standard Drilling Controls
Dust curtain (electric)
Standard Drilling Controls
Dust/water injection (electric)
Standard Drilling Controls
Mast lock (electric)
Standard Drilling Controls
Carousel indexing control (electric)
Standard Drilling Controls
Carousel in/out control (electric)
Standard Drilling Controls
Rotation control (electric over hydraulic)
Standard Drilling Controls
Mast elevation control (hydraulic)
Standard Drilling Controls
Leveling jack controls (hydraulic)
Standard Drilling Controls
Drill hourmeter (gauge)
Standard Drilling Controls
Carousel indexing (electric)
Standard Drilling Controls
Propel controls (electric over hydraulic)
Standard Drilling Controls
Pull-down pressure control (pilot hydraulic)
Standard Drilling Controls
Pull-down control (electric over hydraulic)
Standard Drilling Controls
HOBO/Break-out wrench control (electric)
Standard Engine Controls
Fuel level
Standard Engine Controls
Coolant temperature/high temperature shut-off
Standard Engine Controls
Oil pressure (low pressure shut-off)
Standard Engine Controls
Auto shut-down bypass
Standard Engine Controls
Voltmeter
Standard Engine Controls
Engine hourmeter
Standard Engine Controls
Tachometer
Standard Engine Controls
Stop button
Standard Engine Controls
Start button
Standard Engine Controls
Throttle control

Leveling Jacks

Counterbalance valves
Internal at each cylinder
Cylinder bore
5.5 in
Cylinder rod diameter
3.0 in
Cylinder stroke
48.0 in
Cylinder stroke (optional front)
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 (each)
66500 lbf
Number
4
Pad diameter
24 in

Accessories, Tools and Handling Equipment

Bit Sub – Bottom thread
Depends on bit diameter
Bit Sub – Diameter
Depends on pipe diameter
Bit Sub – Length for 11 m (36 ft 0 in) mast
60.0 in
Bit Sub – Length for 8 m (26 ft 3 in) and 10 m (32 ft 9¾ in) mast
30.0 in
Bit Sub – Table bushing (standard)
One (1) piece insert
Bit Sub – Top thread
Depends on pipe diameter
Deck Wrench – Impact means
Stationary jaw
Deck Wrench – Location
Drill deck
Deck Wrench – Wrench plate (T1-Steel)
3.0 in
Deck Wrench – Wrench positioning
Hydraulic cylinder
Drill Pipe (optional) – Optional length
35.0 ft
HOBO Break-out Wrench – Power
Hydraulic Cylinders
HOBO Break-out Wrench – Support
Pivot
HOBO Break-out Wrench – Wrench type
Patented HOBO (Hydraulically Operated Break-Out)
Pipe Rack (outside the mast) – Length of drill pipe
30.0 ft
Pipe Rack (outside the mast) – Pipe rack index
Hydraulic motor through chain drive
Pipe Rack (outside the mast) – Pipe rack swing
Hydraulic cylinders (2)
Pipe Rack (outside the mast) – Size of drill pipe/capacity – 11 m (36 ft 0 in) mast, 2 pipes
114 mm to 178 mm (4.5 in to 7 in)
Winch System (mounted on the mast) – Swivel hook
Self-closing gate
Bit Sub (deck bushing) – Table bushing
Roller bushing or two-piece
Drill Pipe (optional) – Diameter (customer specification)
127 mm-178 mm (5.0 in-7.0 in)
Drill Pipe (optional) – Length
35 ft
Drill Pipe (optional) – Wall thickness
0.75 in
Drill Pipe (optional) – Threads
Depends on pipe diameter
Note
4-pod carousel 10 m (32 ft 9¾ in) mast
Pipe Rack (outside the mast) – Location
Outside mast
Pipe Rack (outside the mast) – Length of drill pipe
35 ft
Pipe Rack (outside the mast) – Size of drill pipe/capacity – 10 m (32 ft 9¾ in) mast, 4 pipes
127 mm to 178 mm (5.0 in to 7 in)
Pipe Rack (outside the mast) – Type
Carousel, with stationary breaker plates
Top Adapter Sub – Bottom thread
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
Winch System (mounted on the mast) – Cable size
0.5 in
Winch System (mounted on the mast) – Rating
8000 lb

Cooler Assembly: Radiator – CAC-Oil Cooler Assembly for Cat® C15 (Tier 3) 403 kN (540 hp), single, front-end mounted

Compressor oil core hose connection (O-ring boss)
2.5 in
Cooler height
55.0 in
Cooler width
106.0 in
Engine radiator – Coolant connections (bottom tank)
3.5 in
Engine radiator – Coolant connections (top tank)
2.5 in
Engine radiator – Top tank
Sealed top tank, pressure cap, overflow tube and sight glass
Fan diameter (10 blades)
48.0 in
Fan guard
Welded
Fan speed
1525.0 RPM
Hydraulic oil cooler – Air-to-air cooler (O.D.)
4.5 in
Hydraulic oil cooler – Hose connections (O-ring boss)
1.625 in
Hydraulic oil cooler – Standard ambient rating
125.0 ° F
Special Note
Air-finned, three-core, radiator/aftercooling/hydraulic side-by-side compressor, CAC-stacked

Cooler Assembly: Radiator – CAC-Oil Cooler Assembly for Cat C27 (Tier 2) 597 kW (800 hp), single, front-end mounted

Cooler height (dual fan)
65.0 in
Cooler width (dual fan)
114.0 in
Engine radiator – Standard ambient rating
125.0 ° F
Engine radiator – Top tank
Sealed deaeriation tank, pressure cap, overflow tube and sight glass
Fan guard
Welded
Fan speed
1700.0 RPM
Fan – diameter (two fans, 16 blades)
46.0 in
Special Note
Air-finned, four-core, radiator/hydraulic side-by-side compressor, CAC–stacked

Cooler Assembly: Radiator – Coolant-Oil Cooler Assembly for Cummins QSK-19 (Tier 1) 559 kW (750 hp), single, front-end mounted

Cooler height (single fan)
61.0 in
Cooler width (single fan)
101.625 in
Engine radiator – Standard ambient rating
125.0 ° F
Engine radiator – Top tank
Sealed deaeriation tank, pressure cap, overflow tube and sight glass
Fan guard
Welded
Fan speed
1525.0 RPM
Fan – diameter (10 blades)
48.0 in
Special Note
Air-finned, three-core, radiator/hydraulic side-by-side compressor-stacked

Cooler Assembly: Radiator – CAC-Oil Cooler Assembly for Cummins QSK-19 (Tier 2) 567 kW (760 hp), single, front-end mounted

Cooler height (dual fan)
65.0 in
Cooler width (dual fan)
114.0 in
Engine radiator – Standard ambient rating
125.0 ° F
Engine radiator – Top tank
Sealed deaeriation tank, pressure cap, overflow tube and sight glass
Fan guard
Welded
Fan speed
1700.0 RPM
Fan – diameter (two fans, 16 blades)
46.0 in
Special Note
Air-finned, four-core, radiator/hydraulic side-by-side compressor, CAC–stacked

Compressor (Standard): Oil-flooded, single-stage screw

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 136 L (36 gal) (T-tank)
Discharge air flow (sea level)
1050 ft3/min
Maximum operating pressure
125.0 psi

Compressor (Optional): Oil-flooded, single-stage screw

Air cleaner type
Dry-type with safety element
Air cleaner type
Dry type with safety element

Compressor (Optional): Oil-flooded, single-stage screw – Option 2

Discharge air flow (sea level)
1700 ft3/min
Maximum operating pressure
125 psi

Compressor (Optional): Oil-flooded, single-stage screw – Option 1

Discharge air flow (sea level)
1250 ft3/min
Maximum operating pressure
125 psi

Compressor (Optional): Oil-flooded, two-stage screw (high-pressure)

Air cleaner type
Dry-type with safety element
Discharge air flow (sea level)
38 m3/min (1,350 ft3/min)
Discharge air flow (sea level)
43 m3/min (1,500 ft3/min)
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
350 psi