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MD6420C


  • MD6420C - Rotary Drills
  • MD6420C - Rotary Drills

MD6420C

Hole Diameter
Up to 311 mm (Up to 12.25 in)
Engine
C32 ACERT
Bit Load
Up to 41 346 kg (Up to 91,152 lb)
Hole diameter
Up to 311 mm (Up to 12.25 in)

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FEATURES & BENEFITS

Engine and Compressor

Low horsepower package: – Engine: Tier 2 equivalent, 680 kW (912 hp), 1,800 rpm – Compressor: 56.6 m3/min (2,000 ft3/min) @ 6.9 bar (100 psi), 1,800 rpm, poppit inlet – Fixed displacementHigh horsepower package: – Engine: Tier 2 equivalent, 775 kW (1,039 hp), 1,800 rpm – Compressor: 42.5 m3/min (1,500 ft3/min) @ 10.3/24.1/34.5 bar (150/350/500 psi), 1,800 rpm, poppit inlet – Hi/low pressure switch, bit oil injection system, 114 L (30 gal) for DTH – Fixed displacementHigh horsepower package: – Engine, Tier 2 equivalent, 775 kW (1,039 hp), 1,800 rpm – Compressor: 73.6 m3/min (2,600 ft3/min) @ 6.9 bar (100 psi), 1,800 rpm, butterfly inlet – Adjustable from half to full displacement

Mast, Pipe Carousel, 10 m

10 meter mast, five (5) pipe carousel Mast: – Up to 10.29 m (33 ft 9 in) single pass hole depth – Drill on tracks, changing bit above deck – Single pass hole using one (1) each 10.67 m (35 ft) length drill pipe – With bit sub 76 cm (30 in)Carousel: – Five (5) pipe capacity allowing 63.39 m (208 ft) total hole depth – Pipe diameter 194 mm (75⁄8 in) or 219 mm (85⁄8 in) – 10.67 m (35 ft) length drill pipe (drill pipe not included) – Bit load with one pipe up to 41 346 kg (91,152 lb) – Winch 3629 kg (8,000 lb) with 1588 kg (3,500 lb) lift capacity

Mast, Pipe Carousel, 13 m

13 meter mast, five (5) pipe carousel with additional mast restMast: – Up to 13.4 m (44 ft) single pass hole depth – Drill on tracks, changing bit above deck – Single pass hole using one (1) each 12.19 m (40 ft) length drill pipe with bit sub 229 cm (90 in)Carousel: – Five (5) pipe capacity allowing 74.37 m (244 ft) total hole depth – Pipe diameter 194 mm (75⁄8 in) or 219 mm (85⁄8 in) – 12.19 m (40 ft) length drill pipe (drill pipe not included) – Bit load with one pipe up to 41 563 kg (91,630 lb) – Winch 3629 kg (8,000 lb) with 1588 kg (3,500 lb) lift capacity

Mast, Pipe Carousel, 16 m

16 meter mast, four (4) pipe carousel with additional mast restUpper roller pipe catcher arm with drill function interlock when pipe catcher is not closedMast: – Up to 16.46 m (54 ft) single pass hole depth – Drill on tracks, changing bit above deck – Single pass hole using two (2) each 7.62 m (25 ft) length drill pipe – With bit sub 228.6 cm (90 in)Carousel: – Four (4) pipe capacity allowing 46.93 m (154 ft) total hole depth – Pipe diameter 194 mm (75⁄8 in) or 219 mm (85⁄8 in) – 7.62 m (25 ft) length drill pipe (drill pipe not included) – Bit load with two pipes up to 42 000 kg (92,594 lb) – Winch 3629 kg (8,000 lb) with 1588 kg (3,500 lb) lift capacity

Rotary Application

Mast, 10 m – diameter, 194 mm (75⁄8 in) or 219 mm (85⁄8 in): – Tooling 194 mm (75⁄8 in) or 219 mm (85⁄8 in) diameter – Roller bushing – Bit sub 76.2 cm (30 in) long – Five (5) pipe retainerMast, 13 m – diameter, 194 mm (75⁄8 in) or 219 mm (85⁄8 in): – Tooling 194 mm (75⁄8 in) or 219 mm (85⁄8 in) diameter – Roller bushing – Bit sub 228.6 cm (90 in) – Five (5) pipe retainerMast, 16 m – diameter, 194 mm (75⁄8 in) or 219 mm (85⁄8 in): – Tooling 194 mm (75⁄8 in) or 219 mm (85⁄8 in) diameter – Roller bushing – Bit sub 228.6 cm (90 in) – Four (4) pipe retainer

DTH Application

Mast, 10 m – diameter, 194 mm (75⁄8 in) or 219 mm (85⁄8 in): – Tooling 194 mm (75⁄8 in) or 219 mm (85⁄8 in) diameter – Split bushing – Customer supplied bit sub – Five (5) pipe retainerMast, 13 m – diameter, 194 mm (75⁄8 in) or 219 mm (85⁄8 in): – Tooling 194 mm (75⁄8 in) or 219 mm (85⁄8 in) diameter – Split bushing – Customer supplied bit sub – Five (5) pipe retainerMast, 16 m – diameter, 194 mm (75⁄8 in) or 219 mm (85⁄8 in): – Tooling 194 mm (75⁄8 in) or 219 mm (85⁄8 in) diameter – Split bushing – Customer supplied bit sub – Four (4) pipe retainer

Top Sub/Shock Sub

Top sub, rotary application: – Standard for rotary application, DTH cannot use top subShock sub, dual application: – DTH has to use shock sub, optional for rotary application – Shock sub with crossover sub, rotary or DTH

Deck Wrench

Sliding deck wrench with standard bit basketSliding deck wrench with hydraulically operated bit basket

Drill Pipe Catcher

Pipe catcher, fixed cablePipe catcher, hydraulic drill function interlock

Undercarriage, 750 mm (29.53 in): – Undercarriage with full length rock guards and tram distance meter – 750 mm (29.53 in) triple grousers – Used for soft ground applicationUndercarriage, 600 mm (23.62 in): – Undercarriage with full length rock guards and tram distance meter – 600 mm (23.62 in) triple grousers – Used for hard ground application

Control Group

Standard (includes all parts listed under standard equipment)Deluxe (includes standard machine control group features) plus: – Auto leveling and retract – Automation/operator assist auto angleUltra (includes deluxe control group features) plus: – Auto drilling, excluding pipe change – One-touch drilling is only applicable when using single pass drilling

Fast fill, full service, rotary: – Full service center, fill and evacuation fuel, compressor, coolant, engine oil, hydraulic and gear box – 500 hours engine oil reserve system

Climate, standard climate range: – Ambient temperature range: –1° C (30° F) to 48° C (118° F) – Cab cooling to 19° C (66° F) – Safety laminated tinted glassHot climate: – Ambient temperature range: –1° C (30° F) to 52° C (125° F) – Cab cooling to 19° C (66° F) – Safety laminated tinted glass – Window shades – High temp hydraulic oil – High temp compressor oil

Water injection, 2324 L (614 gal): – One (1) tank with 1378 L (364 gal) – Two (2) tanks with 473 L (125 gal) each – Fast fill water system – Stainless steel plumbing – ECM control of water injection pump interlock – Water flow meter/current control and tank level

Frame, Standard: – Includes basic mainframe and deck features plus: - Fixed stairs to main deck cab area, on cab side of frameFrame, Ultra: – Includes basic mainframe and deck features plus: - Cascading, self-leveling stairs to main deck cab area - Stairs on cab side of the frame - Switched walkway lighting at ground and deck levels - Tram interlock if stairs are down

Optional attachments may vary. Consult your Cat dealer for details.

MAST ACCESS LADDER

Ladder to access mast, grating for maintenance inside mastPosts only for lanyard attachment to use with cable for traveling hook and harness

OPERATOR ENVIRONMENT

Window Shades: – Included in hot climate package – Optional for other climate packages

ATTACHMENTS

Dust suppressionHydraulic dust curtains: – Fixed curtains on left and right sides – Auto raise hydraulic lifted curtains for rear and front – Includes ECM control tram interlock if dust curtains are not upDrill pipe: – Drill pipe, 194 mm × 7.62 m (75⁄8 in × 25 ft): - 194 mm (75⁄8 in) diameter, 7.62 m (25 ft) long, 152 mm (6 in) BECO threads - For use with 16 m mast – Drill pipe, 194 mm × 7.62 m (75⁄8 in × 25 ft): - 219 mm (85⁄8 in) diameter, 7.62 m (25 ft) long, 152 mm (6 in) BECO threads - For use with 16 m mast – Drill pipe, 194 mm × 9.14 m (75⁄8 in × 30 ft): - 194 mm (75⁄8 in) diameter, 9.14 m (30 ft) long, 152 mm (6 in) BECO threads - Recommended for 13 m mast DTH starter steel – Drill pipe, 194 mm × 9.14 m (75⁄8 in × 30 ft): - 219 mm (85⁄8 in) diameter, 9.14 m (30 ft) long, 152 mm (6 in) BECO threads - Recommended for 13 m mast DTH starter steel – Drill pipe, 194 mm × 10.67 m (75⁄8 in × 35 ft): - 194 mm (75⁄8 in) diameter, 10.67 m (35 ft) long, 152 mm (6 in) BECO threads - For use with 10 m mast – Drill pipe, 194 mm × 10.67 m (75⁄8 in × 35 ft): - 219 mm (85⁄8 in) diameter, 10.67 m (35 ft) long, 152 mm (6 in) BECO threads - For use with 10 m mast – Drill pipe, 194 mm × 12.19 m (75⁄8 in × 40 ft): - 194 mm (75⁄8 in) diameter, 12.19 m (40 ft) long, 152 mm (6 in) BECO threads - For use with 13 m mast – Drill pipe, 194 mm × 12.19 m (75⁄8 in × 40 ft): - 219 mm (85⁄8 in) diameter, 12.19 m (40 ft) long, 152 mm (6 in) BECO threads - For use with 13 m mastClean: – Blow down hose with nozzle: - Clean with airDust control: – Spray water on dirt when tramming starts – For use with water injectionWinch control: – Winch control, remote: - Remote pendant winch controlPlatform: – Tank platform, fire suppression: - Holds up to three (3) of 113 kg (250 lb) tanksJIB crane: – JIB crane, pedestal control: - Mounted on drill deck – JIB crane, remote control: - Radio remote controlStart up commissioning: – Factory service engineer on site for 12 working days to direct start-up and commissioning, and provide hands-on maintenance and operation training

SPECIFICATION

Standard Equipment
Hole Diameter Up to 311 mm (Up to 12.25 in)
Engine C32 ACERT
Bit Load Up to 41 346 kg (Up to 91,152 lb)
Standard Equipment
Torque, dual motors 0-17 313 N∙m (0-12,769 lbf-ft)
Rotation speed 0-137 rpm
Standard Equipment
Table height off ground 1448 mm
Components Pipe loading guide roller
Components Stationary rear deck
Components Left rear swing gated handrail (dual gate design)
Components Rear deck bit storage box with aluminum cover
Components Hydraulically operated viewing hatch with LED hatch viewing spot light
Standard Equipment
Lift capacity – each 511 kN
Number 4
Pad diameter – Non-drill end 762 mm
Pad diameter – Drill end 914 mm
Stroke on non-drill end 152 cm
Stroke on drill end 122 cm
Standard Equipment
Altitude Up to 4572 m (Up to 15,000 ft)
Maximum ambient rating (standard) 52 ° C
Minimum ambient rating (standard) -1 ° C
Note Optional cold weather packages available
Standard Equipment
Climate control Roof-mounted, AC/heating/pressurizing unit
Floor area 4.85 m2
Height inside 2146 mm
Location To the right from the mast if facing rear deck from the rear end
Number of doors Two (2) with windows (included in above)
Number of windows 12
Other Window wipers and washers
Type Shock-mounted; two-man, integrated FOPS certified
Windows (tinted safety glass laminated in rubber mounting) 14 mm
Standard Equipment
Brake release Automatic
Brakes Spring set, hydraulic release
Front Three-point oscillating type
Maximum drive horsepower per track 216 kW
Number of rollers on each side Total of 16: (13) lower rollers, (3) upper/carrier rollers
Track adjustment means Hydraulic with grease gun
Track drive disconnect Standard (manual)
Tram speed maximum 2.27 km/h
Rock guards/chain guards Standard full-length guards
Gradeability mast down – CDH (cab down hill) 25%
Gradeability mast down – CUH (cab up hill) 13%
Standard Equipment
Discharge air flow (sea level) 56.6 m3/min
Maximum operating pressure 6.9 bar
Standard Equipment
Retract rate 0-33.5 m/min (0-110 ft/min)
Pull-down capacity Up to 383 kN (Up to 86,000 lbf)
Hoist capacity Up to 311 kN (Up to 70,000 lbf)
Drilling feed rate 0-33.5 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) 12.19 m
Cable type – 29 mm (1.125 in) DYFORM 8
Bit load force Up to 41 346 kg (Up to 91,152 lb)
Standard Equipment
Shock Sub (DTH Application) Thread – API reg. 140 mm (5.5 in)
Top Adapter Sub Diameter depends on pipe diameter
Top Adapter Sub Top thread – API reg. 140 mm (5.5 in)
Top Adapter Sub Bottom thread – depends on pipe diameter
Bit Sub (Rotary Application) Top thread – depends on pipe diameter
Bit Sub (Rotary Application) Bottom thread – API reg. 168 mm (6.625 in)
Bit Sub (Rotary Application) Table bushing roller-type or two-piece with replaceable liner
Pipe Rack (Inside the Mast) Carousel with stationary pods and breaker plates
16 m Configuration 7.62 m (25 ft) × 2 as starter and four pieces of 7.62 m (25 ft) in carousel
16 m Configuration Outside diameter – 194 mm (75⁄8 in) or 219 mm (85⁄8 in)
13 m Configuration 12.19 m (40 ft) starter and five pieces of 12.19 m (40 ft) in carousel
13 m Configuration Outside diameter – 194 mm (75⁄8 in) or 219 mm (85⁄8 in)
10 m Configuration 10.66 m (35 ft) starter and five pieces of 10.66 m (35 ft) in carousel
10 m Configuration Outside diameter – 194 mm (75⁄8 in) or 219 mm (85⁄8 in)
10 m Configuration Length of drill – 10.67 m (35 ft)
Winch System Rating – 3629 kg (8,000 lb) with 1588 kg (3,500 lb) lift capacity
Winch System Cable size – 13 mm (0.5 in)
Pipe Handling Sliding deck wrench
Pipe Handling Fixed cable pipe catcher or optional hydraulic safety arm/pipe catcher with drill function interlock, when pipe catcher is not closed
Pipe Handling Manually removable or optional hydraulically operated bit basket
Pipe Handling Lifting bail-drill pipe/bit sub
Standard Equipment
Discharge air flow (sea level) 73.56 m3/min
Maximum operating pressure 6.9 bar
Standard Equipment
Hole diameter Up to 311 mm (Up to 12.25 in)
16 m/50 ft mast – Depth single pass 16.46 m
16 m/50 ft mast – Multi-pass Up to 46.9 m (Up to 154 ft)
13 m/40 ft mast – Depth single pass 13.4 m
13 m/40 ft mast – Multi-pass Up to 74.4 m (Up to 244 ft)
10 m/35 ft mast – Depth single pass 10.29 m
10 m/35 ft mast – Multi-pass Up to 63.4 m (Up to 208 ft)
Angle drilling 30° (in 5° increments)
Standard Equipment
Discharge air flow (sea level) 42.5 m3/min
Maximum operating pressure 10.3/24.1/34.4 bar (150/350/500 psi)
Hi/low pressure switch, bit oil injection system 114 L
Standard Equipment
Jacks, mast pivot and deck Welded integrally to mainframe
Machine deck Access both sides
Standard Equipment
Model C32 ACERT
Rated horsepower 680 kW
Fuel tank 1514 L plus, 1703 L (400 gal plus, 450 gal)
Emissions * The C32 ACERT engine meets U.S. EPA Tier 2/EU Stage II equivalent emission standards
Standard Equipment
Model C32 ACERT
Rated horsepower 775 kW
Fuel tank 1514 L plus, 1703 L (400 gal plus, 450 gal)
Emissions * The C32 ACERT engine meets Tier 2/Stage II equivalent emission standards
Standard Equipment
Manuals Operations/maintenance manuals and all schematics are stored in drill monitor
Display English control system display text ex-factory. May be changed to other languages by dealer.
Components Basic engine shut down timer
Components Drill performance and monitoring/diagnostics system
Components Electronic compressor control
Electronic control: – Monitoring – Diagnostic system
Components Filter indicators
Components High/low tram speed select (high only when mast is down) interlock
Components HMI touch screen control
Components Mast lock indicator
Components ECM (Electronic Control Module) provides fast and reliable control of all drill functions
Components Pump drive gearbox temperature sensor
Components Rotary head RPM gauge – digital
Components Tram interlock, machine outside stability limits
Components Tram interlock, pipe in hole
Components Tram interlock, mast up and locked or down and parked
Components Jack/tram interlock
Components Cab environment control (AC, filter indicator, heat, fan speeds)
Components Pipe positioner sensor
Components Drill depth meter
Components Drill function interlock, mast up and locked
Components Rotary torque control
Components Head clear interlock, rotary drive clear of carousel
Components Winch interlock
Components Jack pressure sensor
Components Virtual rotary head travel stop
Components Wiring for terrain interface provided
Standard Equipment
Components Fuel tanks isolation valves
Components Hydraulic tank with isolation valves and interlocks
Components Slip resistant decks and walkways
Components 3217 L (850 gal) fuel, (two tanks mounted under engine/compressor) with manual and remote fill
Components Bolt-on hand rails with kick plates
Components Cat® maintenance free batteries
Components Stainless battery box, sliding drawer type
Components Remote jump start terminals
Components Tow hooks (front end)
Components Lift lugs (for base machine minus mast)
Components Walkways around the drill, 360 degrees
Components Swing up steps, access/egress
Components Self-closing gates
Components Two stage mast raise cylinders
Components Fixed dust curtains – four sides