MD6420B ROTARY BLASTHOLE DRILL (10 M, 13 M OR 16 M MAST)
SPECIFICATIONS
Hole DiameterUp to 311 mm (Up to 12.25 in)
EngineQST-30 Tier 2
Horsepower capacity216 kW
BENEFITS AND FEATURES
specifications
Hole DiameterUp to 311 mm (Up to 12.25 in)
EngineQST-30 Tier 2
rotary drive system
Horsepower capacity216 kW
Torque0-15 185 N·m (0-11,200 lbf-ft)
drill table and work deck
Table height off ground1448 mm
leveling jacks
Lift capacity – each428 kN
Number4
operating temperature
AltitudeUp to 4572 m (Up to 15,000 ft)
Maximum ambient rating (standard)52 ° C
Minimum ambient rating (standard)-28.0 ° C
operator’s cab
Climate controlRoof-mounted, AC/heating/pressurizing unit
Floor area4.85 m2
Height inside2146 mm
LocationTo the right from the mast if facing rear deck from the rear end
Number of doorsTwo (2) with windows (included in above)
Number of windows12
OtherWindow wipers and washers
TypeShock-mounted; two-man, integrated FOPS certified
Windows (tinted safety glass XIR laminated in rubber mounting)14 mm
undercarriage
Brake releaseAutomatic
BrakesSpring set, hydraulic release
FrontThree-point oscillating type
Maximum drive horsepower per track216 kW
Number of rollers on each side13
Track adjustment meansHydraulic with grease gun
Track drive disconnectStandard (manual)
Tram speed maximum2.27 km/h
compressor standard oilflooded singlestage screw
Discharge air flow (sea level)56.6 m3/min
Maximum operating pressure6.9 bar
pulldownhoisting capacity
Retract rate0-33.5 m/min (0-110 ft/min)
accessories tools and handling equipment
Bit Sub – Bottom thread6 5/8 api reg
Bit Sub – Top thread6 Beco
Top Adapter Sub – Bottom thread6 Beco
Top Adapter Sub – DiameterDepends on pipe diameter
Top Adapter Sub – Length914 mm
Top Adapter Sub – Top thread (API reg.)140 mm
compressor optional oilflooded singlestage screw
Discharge air flow (sea level)67.9 m3/min
Maximum operating pressure6.9 bar
10 13 or 16meter mast configuration
Hole diameterUp to 311 mm (Up to 12.25 in)
16 m/50 ft mast – Depth single pass16.46 m
16 m/50 ft mast – Multi-passUp to 46.9 m (Up to 154 ft)
13 m/40 ft mast – Depth single pass13.4 m
13 m/40 ft mast – Multi-passUp to 74.4 m (Up to 244 ft)
10 m/35 ft mast – Depth single pass10.29 m
10 m/35 ft mast – Multi-passUp to 63.4 m (Up to 208 ft)
pulldownhoisting capacity
Pull-down capacityUp to 383 kN (Up to 86,000 lbf)
Hoist capacityUp to 311 kN (Up to 70,000 lbf)
Drilling feed rate0-33.5 m/min (0-110 ft/min)
Head travel (16 m/50 ft mast)18.29 m
Head travel (13 m/40 ft mast)15.24 m
Head travel (10 m/35 ft mast)12.2 m
Cable type – 29 mm (1.125 in)DYFORM 8
compressor optional oilflooded dualstage screw
Discharge air flow (sea level)42.5 m3/min
Maximum operating pressure10.3/24.1/34.4 bar (150/350/500 psi)
undercarriage
Rock guards/chain guardsStandard full-length guards
Gradeability mast down – CDH (cab down hill)25%
Gradeability mast down – CUH (cab up hill)13%
mainframe decks and walkways
Jacks, mast pivot and deckWelded integrally to mainframe
Machine deckAccess both sides
leveling jacks
Pad diameter – Non-drill end762 mm
Pad diameter – Drill end914 mm
drill table and work deck
Viewing hatchIn the rear deck; hydraulically operated from the cab
accessories tools and handling equipment
Drill Pipe (optional) – 16 m mast: Diameter194 mm, 219 mm (7.625 in, 8.625 in)
Drill Pipe (optional) – 16 m mast: Wall thickness25.4 mm
Drill Pipe (optional) – 16 m mast: Length (standard for 16 m/50 ft configuration) – two pipes coupled together plus bit sub7.62 m
Drill Pipe (optional) – 16 m mast: Threads6 in Beco
Drill Pipe (optional) – 10 m mast: Diameter194 mm, 219 mm (7.625 in, 8.625 in)
Drill Pipe (optional) – 10 m mast: Wall thickness25 mm
Drill Pipe (optional) – 10 m mast: Length10.67 m
Drill Pipe (optional) – 10 m mast: Threads6 in Beco
Bit SubDrill Deck Bit Storage Box with Aluminum Covers
Bit Sub – Table bushingRoller-type or two-piece with replaceable liner
Pipe Rack (Inside the Mast)Carousel with stationary pods and breaker plates
Pipe Rack (Inside the Mast): 16 m configuration7.62 m (25 ft) × 2 as starter and 4 pieces 7.62 m (25 ft) in carousel
Pipe Rack (Inside the Mast): 16 m configuration – Outside diameter194 mm
Pipe Rack (Inside the Mast): 13 m configuration12.2 m (40 ft) starter and 5 pieces of 12.2 m (40 ft) in carousel
Pipe Rack (Inside the Mast): 13 m configuration – Outside diameter219 mm
Pipe Rack (Inside the Mast): 10 m configuration10.66 m (35 ft) starter and 5 pieces of 10.66 m (35 ft) in carousel
Pipe Rack (Inside the Mast): 10 m configuration – Outside diameter219 mm
Pipe Rack (Inside the Mast): 10 m configuration – Length of drill10.67 m
Drill Pipe (optional) – 13 m mast: Diameter194 mm, 219 mm (7.625 in, 8.625 in)
Drill Pipe (optional) – 13 m mast: Wall thickness25 mm
Drill Pipe (optional) – 13 m mast: Length12.19 m
Drill Pipe (optional) – 13 m mast: Threads6 in Beco
Winch System – Rating1588 kg
Winch System – Cable size13 mm
engine optional – qst30c noncert with cense option 1
ModelQST30C (Non-Cert with Cense)
Rated horsepower786 kW
Fuel tank1514 L plus, 1703 L (400 gal plus, 450 gal)
engine standard – qst30 tier 2
ModelQST-30 Tier 2
Rated horsepower627 kW
Fuel tank1514 L plus, 1703 L (400 gal plus, 450 gal)
engine optional – qst30c noncert with cense option 2
ModelQST30C (Non-Cert with Cense)
Rated horsepower783 kW
Full load2100 rpm
Fuel tank1514 L plus, 1703 L (400 gal plus, 450 gal)
BENEFITS AND FEATURES
MD6420B STANDARD EQUIPMENT
- capability
The MD6420B crawler-mounted blasthole drills are designed to drill up to 311 mm (12.25 in) diameter holes with rated pulldown and hoist capacity up to 39 009 kg (86,000 lb). - engine
Remote jump start terminals
Exhaust blankets
Engine pre-lube
Additional fuel filtration
Coolant conditioner - mast
Up to 311 mm (12 1/4 in) hole diameter
Up to 39 009 kg (86,000 lb) rated capacity single cylinder pulldown/hoist system
HOBO (Hydraulically Operated Break Out) wrench operated from the cab
Up to 30 degree angle drilling package and mast locks and indicator in cab
Winch system 1588 kg (3,500 lb) capacity
Auto cable tensioning system
Two stage mast raise cylinders
Pipe guide roller assembly
Removable mast lock bushings
Wide hinged seal dust hood
Mast lanyard tapped mounting plates
Sheave/feed rope guards
Roller pipe catcher arm (upper) (ONLY 13 m or 16 m mast)
Hydraulic safety arm/rod catcher
Additional mast rests mounted on non-drill end (ONLY 13 m or 16 m mast)
Mast grating
Winch rope guide for drill pipe loading - top drive
Two (2) motors
Torque up to 15 185 N∙m (11,200 lbf-ft) - operator’s cab
Large cab with 4.9 m2 (52.2 ft2) floor space and walkway with railing
Integrated FOPS
Totally enclosed and insulated extra large two-man cab
Full front drill deck window with protective cage
dB(A) rating of 72 or less
Two (2) hinged doors with heavy duty door latching system
Twelve (12) windows – safety glass with window tint and window shades on four (4) windows
Roof window with protective cage
Ergonomic operator’s console with split control panel and full instrumentation
Operator’s console with stainless steel panels and back-lit gauges
Ergonomic operator’s seat with retractable seat belt
All electric controls for drilling, tramming, leveling plus auxiliary functions
Auxiliary functions operated by fingertip switches
Roof mounted air conditioning/heating/pressurizing unit; hydraulic driven
Windshield wipers and washer kit
CD stereo kit complete with speakers
Cab ladder and roof platform plus railing
Drill performance and monitoring/diagnostics system complete with full interlock system
Auto leveling
Rotary torque control
Basic engine shut down timer
Slope indicator mounted in cab to indicate forward and lateral angle
24V to 12V DC converter
Aluminum kick plates
Luncheonette fridge and microwave (power only) - digsy control – monitoring – diagnostic system canbus based
ECM (Electronic Control Module) provides fast and reliable control of all drill functions
ECM configuration is de-centralized – with short wire-runs
Drill multi-monitor integrated with the control system to monitor drill operation and health, allowing quick and accurate diagnostics. An operator can gather all the necessary data assuring safe, ergonomic and efficient operation and production - interlock systems
Tram interlock, jacks (FL, FR, RL, RR)
Tram interlock, pipe in hole
Tram interlock, ladder down
Tram interlock (mast not up and locked or down and parked)
Tram interlock, machine outside stability limits
Tram interlock, dust skirt not up
Filter indicators
Drill function interlock, carousel not parked
Drill function interlock, carousel in load position
Head clear
Drill function interlock, mast up and locked
Drill function interlock, pipe safety bar not closed
Water injection pump interlock
Pipe support interlock
Winch up interlock
High/low speed select (high only when mast is down) - undercarriage
Crawler mounted, excavator type Cat 349E L
750 mm (29.5 in) triple grousers
Full length rock guards
Tram distance meter - mainframe decks and walkways
Stationary rear deck
Sliding viewing hatch in the rear deck; hydraulically operated from the cab
Walk-around front deck
Four (4) hydraulic leveling jacks, 122 cm (48 in)
Total 3217 L (850 gal) fuel tanks with isolation valves
Drill deck bit storage box with aluminum covers
4 × 8D maintenance free batteries
Stainless battery box pull-out tray
Spring loaded swing gates
Hose restraint on air hoses
Low coolant level switch
Exane wiring
Stainless junction boxes
EMS lap top harness/terminal mounted in main junction box
Additional loop filters between pumps and motors
Eight (8) engine shutdowns
Hydraulic rear dust curtain
500-hour engine oil reserve system
Air hose safety sleeves (whip socks)
Firewall between engine and pump drive
Mast access ladder
Air cleaner vacuator valves - carousel
Hydraulically operated from the cab
Semi-automatic indexing
Nylon pipe rack pivot bearings - cooling split coolers
Maximum ambient cooling capacity of 52° C (125° F) (replaceable cores)
Variable speed fan arrangement for coolers
Radiator caps pressure release system - hydraulic system
Two (2) variable displacement axial piston pumps, in closed loop system, that operate the drill rotation, pulldown/hoist and tram functions
One (1) variable displacement axial piston pump, in closed loop system on demand, that operates auxiliary functions
Two (2) gear pumps with proportional speed control that operate the cooling fans
Dual filtration; return/drain
Hydraulic pressure test points
Hydraulic tank isolation valves with interlocks
Electronic pressure control with feedback on all auxiliary functions
Pump drive gearbox temperature sensor - drill accessories triconerotary
Top sub adapter
Roller deck bushing
Bit sub
Horseshoe bushing
Bit basket
Auto tool wrench
Lifting bail - dust system
Based on DCA ordered - paint
Standard Caterpillar colors - miscellaneous
Tram alarm
Filter kit for 50-hour preventive maintenance
Twenty (20) LED lights for night drilling
Handrails with side boarding ladders
Lift kit
Heavy duty tow hooks (front end)
Battery disconnect (2 pole)
MOTEUR
Configuration Choices 1-3
BENEFITS AND FEATURES
MD6420B ROTARY BLASTHOLE DRILL BASE MACHINE DCA – 1
- MD6420B Rotary Blasthole Drill Base Machine
- MD6420NP-9 – Cummins QST-30C Electronic Diesel Engine (non-cert with CENSE) 783 kW (1,050 hp) @ 1,800 rpm with two stage Sullair compressor 42.5 m3/min @ 10.3/34.4 bar (1,500 ft3/min @ 150/500 psi) (outside U.S.A., Canada, EU)
- MD6420NP-17 – Mast: For up to 16.46 m (54 ft) single pass hole depth, drill on tracks, changing bit above deck: – Single pass hole using (2) each 7.62 m (25 ft) length S-S drill pipes with 231 cm (91 in) bit sub; – Carousel with four (4) pipe capacity allowing 46.93 m (154 ft) total hole depth; – 194 mm (7-5/8 in) diameter, 7.62 m (25 ft) length S-S drill pipes (drill pipe not included); – Up to 42,000 kg (92,594 lb) bit load with one pipe in the drill string
- MD6420NP-26 – Water injection system for dust suppression with 1378 L (364 gal) tank, mounted below front deck: – Stainless water plumbing tubes and fittings are standard with optional water injection
- MD6420NP-29A – Top drive rotation speed 0-137 rpm
- MD6420NP-32 – Single-pass auto drill function/processing
- MD6420NP-36 – Full service center (fuel, hydraulic oil, coolant, engine oil)
- MD6420NP-37 – Automatic lubrication system
- MD6420NP-38 – Drilling pipe thread lube system, activated from inside the cab
- MD6420NP-39 – Strobe beacons (one on cab roof, one on mast access ladder)
- MD6420NP-44 – Cascading (self leveling) hydraulically operated stairs at cab
- MD6420NP-46 – Water tank – 568 L (150 gal), [two seventy-five (75) gallon tanks] on the deck
- MD6420NP-48 – Hydraulic front dust curtain
- MD6420NP-52 – XIR cab glass upgrade
- MD6420NP-54 – Electric horn activated by push button in the cab
- MD6420NP-55 – Lanyard attachment – cable with traveling hook on mast, and harness for personnel – posts only
- MD6420NP-56 – Closed circuit camera system with two cameras for front and rear mounting and monitor in cab
- MD6420NP-57 – Winch remote control (pendant/cable) for operation of winch while on rear deck
- MD6420NP-60 – Jib crane with pedestal control mounted on rear deck
- MD6420NP-61 – Deck wrench with HOBB – Hydraulically Operated Bit Basket
- MD6420NP-62 – Wash-down pump, diesel with hose reel
MD6420B ROTARY BLASTHOLE DRILL BASE MACHINE DCA – 2
- MD6420NP-2 – Cummins QST-30 Electronic Diesel Engine (Tier 2), 634 kW (850 hp) @ 1,800 rpm with single stage Sullair compressor 56.6 m3/min @ 6.9 bar (2,000 ft3/min @ 100 psi)
- MD6420NP-12 – Mast: For up to 10.29 m (33 ft 9 in) single pass hole depth, drill on tracks, changing bit above deck: – Single pass hole using (1) each 10.67 m (35 ft) length S-S drill pipe and with 76 cm (30 in) bit sub; – Carousel with five (5) pipe capacity allowing 63.39 m (208 ft) total hole depth; – 219 mm (8-5/8 in) diameter, 10.67 m (35 ft) length S-S drill pipe (drill pipe not included); – Up to 41 347 kg (91,152 lb) bit load with one pipe in the drill string
- MD6420NP-26 – Water injection system for dust suppression with 1378 L (364 gal) tank, mounted below front deck: – Stainless water plumbing tubes and fittings are standard with optional water injection
- MD6420NP-28 – Tram spray system (requires optional water injection system)
- MD6420NP-29 – Top drive rotation speed 0-173 rpm
- MD6420NP-32 – Single-pass auto drill function/processing
- MD6420NP-36 – Full service center (fuel, hydraulic oil, coolant, engine oil)
- MD6420NP-37 – Automatic lubrication system
- MD6420NP-38 – Drilling pipe thread lube system, activated from inside the cab
- MD6420NP-39 – Strobe beacons (one on cab roof, one on mast access ladder)
- MD6420NP-44 – Cascading (self leveling) hydraulically operated stairs at cab
- MD6420NP-45 – Water tank 1514 L (400 gal), mounted on deck
- MD6420NP-48 – Hydraulic front dust curtain
- MD6420NP-52 – XIR cab glass upgrade
- MD6420NP-54 – Electric horn activated by push button in the cab
- MD6420NP-55 – Lanyard attachment – cable with traveling hook on mast – posts only
- MD6420NP-56 – Closed circuit camera system with two cameras for front and rear mounting and monitor in cab
- MD6420NP-59 – 152 cm (60 in) leveling jacks (front end only)
- MD6420NP-60 – Jib crane with pedestal control mounted on rear deck
- MD6420NP-61 – Deck wrench with HOBB – Hydraulically Operated Bit Basket
- MD6420NP-62 – Wash-down pump, diesel with hose reel
MD6420B Rotary Blasthole Drill Base Machine DCA – 3
- MD6420NP-7 – Cummins QST-30C Electronic Diesel Engine (non-cert with CENSE) 783 kW (1,050 hp) @ 2,100 rpm with single stage Sullair compressor 67.9 m3/min @ 6.9 bar (2,400 ft3/min @ 100 psi)
- MD6420NP-15 – Mast: For up to 13.4 m (44 ft) single pass hole depth, drill on tracks, changing bit above deck: – Single pass hole using (1) each 12.19 m (40 ft) length S-S drill pipe with 229 cm (90 in) bit sub; – Carousel with five (5) pipe capacity allowing 74.37 m (244 ft) total hole depth; – 219 mm (8-5/8 in) diameter, 12.19 m (40 ft) length S-S drill pipe (drill pipe not included); – Up to 41 563 kg (91,630 lb) bit load with one pipe in the drill string
- MD6420NP-26 – Water injection system for dust suppression with 1378 L (364 gal) tank, mounted below front deck
- Stainless water plumbing tubes and fittings are standard with optional water injection
- MD6420NP-28 – Tram nest spray system (requires optional water injection system)
- MD6420NP-29 – Top drive rotation speed 0-173 rpm
- MD6420NP-32 – Single-pass auto drill function/processing
- MD6420NP-36 – Full service center (fuel, hydraulic oil, coolant, engine oil)
- MD6420NP-37 – Automatic lubrication system
- MD6420NP-38 – Drilling pipe thread lube system, activated from inside the cab
- MD6420NP-39 – Strobe beacons (one on cab roof, one on mast access ladder)
- MD6420NP-44 – Cascading (self leveling) hydraulically operated stairs at cab
- MD6420NP-45 – Water tank 1514 L (400 gal), mounted on deck
- MD6420NP-48 – Hydraulic front dust curtain
- MD6420NP-52 – XIR cab glass upgrade
- MD6420NP-54 – Electric horn activated by push button in the cab
- MD6420NP-55 – Lanyard attachment – cable with traveling hook on mast, and harness for personnel – posts only
- MD6420NP-56 – Closed circuit camera system with two cameras for front and rear mounting and monitor in cab
- MD6420NP-59 – 152 cm (60 in) leveling jacks (front end only)
- MD6420NP-60 – Jib crane with pedestal control mounted on rear deck
- MD6420NP-61 – Deck wrench with HOBB – Hydraulically Operated Bit Basket
- MD6420NP-62 – Wash-down pump, diesel with hose reel