Overview
MD6420 Rotary Drill
Specifications
Units:
| Bit Load | up to 42 000 kg (up to 92,594 lb) |
| Hole Diameter | 229 - 311 mm (9.0 - 12.25 in) |
| Engine | C27 (Tier 2) - 597 kW (800 hp) at 2,100 rpm |
Specifications
Units:
| Bit Load | up to 42 000 kg (up to 92,594 lb) |
| Hole Diameter | 229 - 311 mm (9.0 - 12.25 in) |
| Engine | C27 (Tier 2) - 597 kW (800 hp) at 2,100 rpm |
| Altitude | Up to 4572 m (Up to 15,000 ft) |
| Minimum Ambient Rating - Standard | — |
| Maximum Ambient Rating - Standard | — |
| Head Travel (13 m/40 ft Configuration) | — |
| Retract Rate | 0-33.5 m/min (0-110 ft/min) |
| Drilling Feed Rate | 0-19 m/min (0-61 ft/min) |
| Pull-Down Capacity | Up to 383 kN (Up to 86,000 lbf) |
| Hoist Capacity | Up to 19 843 kg (Up to 43,745 lbf) |
| Head Travel (16 m/50 ft Configuration) | — |
| Cable Type - 29 mm (1.125 in) | DYFORM 8 |
| Horse Power Capacity | — |
| Torque | 0-15 185 N∙m (0-11, 200 lbf-ft) |
| Fuel Tank | — |
| Optional Fuel Tank | — |
| Rated Horse Power | — |
| Full Load | — |
| Manufacturer | Caterpillar |
| Model | C27 Tier 2 |
| Manufacturer | Cummins |
| Full Load | — |
| Fuel Tank | — |
| Optional Fuel Tank | — |
| Rated Horse Power - Tier 2 | — |
| Rated Horse Power - Non-Cert | 634 and 783 kW (850 and 1,050 hp) |
| Model | QST-30 |
| Depth Single Pass (13 m/40 ft Configuration) | — |
| Hole Diameter | Up to 311 mm (Up to 12.25 in) |
| Depth Multi Pass (13 m/40 ft Configuration) | Up to 75.3 m (Up to 247 ft) |
| Depth Multi Pass (16 m/50 ft Configuration) | Up to 46.9 m (Up to 154 ft) |
| Depth Single Pass (16 m/50 ft Configuration) | — |
| Height - Inside | — |
| Number of Doors | Two with windows (included in above) |
| Operator's seat | One swivel-type with armrests, headrest and retractable seat belt |
| Floor Area | — |
| Climate Control | Wall-mounted, AC/heating/ pressurizing unit |
| Other | Window wipers and washers |
| Windows - Tinted Safety Glass in Rubber Mounting | — |
| Number of Windows | 10 |
| Helper's seat | Fixed folding jump seat |
| Type | Shock-mounted; two-man, integrated FOPS certified |
| Number of Rollers - Each Side | 13 |
| Track Drive Disconnect | Standard (manual) |
| Front | Three-point oscillating type |
| Brakes | Spring set, hydraulic release |
| Maximum Drive Horse Power per Track | — |
| Tram Speed - Maximum | — |
| Brake Release | Automatic |
| Track Adjustment Means | Hydraulic with grease gun |
| Gradeability Mast Down | 17% |
| Rock Guards/Chain Guards | Standard full-length guards |
| Machine Deck | Access both sides |
| Tool Box | Lockable door, below front deck |
| Tow Hooks | Welded, two (2) front |
| Jacks, Mast Pivot and Deck | Welded integrally to mainframe |
| Wide Walkways | Around the drill deck |
| Viewing Hatch | In the rear deck; hydraulically operated from the cab |
| Table Height Off Ground | — |
| Dust Curtain | Optional hydraulic lifters, front and rear |
| Fuel Tank | — |
| Full Load | — |
| Manufacturer | Caterpillar |
| Optional Fuel Tank | — |
| Rated Horse Power | — |
| Model | C27 Tier 2 |
| Pad Diameter - Non-Drill End | — |
| Pad Diameter - Drill End | — |
| Number | 4 |
| Location | Two front, two rear |
| Drill Pipe - Optional - 13 m: Length | — |
| Pipe Rack (Inside the Mast) - Pipe Rack Index | Hydraulic cylinder with locking pin |
| Top Adapter Sub - Top Thread (API Reg.) | — |
| Bit Sub - Wall Thickness | — |
| Pipe Rack (Inside the Mast) - 16 m/50 ft Configuration (Standard) - 4 Pipes - 7.62 m (25 ft) Pipe | 178 mm, 194 mm, 219 mm (7.0 in, 7.625 in, 8.625 in) |
| Bit Sub - Bottom Thread | Depends on bit diameter |
| Bit Sub - Length | Up to 2286 m (Up to 90 in) |
| Drill Pipe - Optional - 16 m: Length - Standard for 16 m/50 ft Configuration - Two Pipes Coupled Together Plus Bit Sub | — |
| Pipe Rack (Inside the Mast) - 13 m/40 ft Configuration (Standard) - 4 Pipes - 12.19 m (40 ft) Pipe | 178 mm, 194 mm, 219 mm (7.0 in, 7.625 in, 8.625 in) |
| Pipe Rack (Inside the Mast) - 13 m/40 ft Configuration (Optional Deep Hole Package) - 5 Pipes - 12.19 m (40 ft) Pipe - Outside Diameter | 178 mm, 194 mm, 219 mm (7.0 in, 7.625 in, 8.625 in) |
| Pipe Rack (Inside the Mast) - Pipe Rack Swing | Hydraulic cylinders (2) |
| Top Adaptor Sub - Wall Thickness | — |
| Drill Pipe - Optional - 16 m: Threads | Depends on pipe outside diameter |
| Winch System - Cable size | — |
| Drill Pipe - Optional - 16 m: Diameter | 178 mm, 194 mm, 219 mm (7.0 in, 7.625 in, 8.625 in) |
| Pipe Rack (Inside the Mast) | Carousel with stationary pods and breaker plates |
| Drill Pipe - Optional - 13 m: Wall Thickness | — |
| Drill Pipe - Optional - 13 m: Diameter | 178 mm, 194 mm, 219 mm (7.0 in, 7.625 in, 8.625 in) |
| Drill Pipe - Optional - 16 m: Wall Thickness | — |
| Winch System - Rating | — |
| Top Adapter Sub - Bottom Thread | Depends on pipe diameter |
| Bit Sub - Diameter | Depends on pipe diameter |
| Top Adapter Sub - Diameter | Depends on pipe diameter |
| Bit Sub - Top Thread | Depends on pipe diameter |
| Drill Pipe - Optional - 13 m: Threads | Varies with outside pipe diameter |
| Top Adapter Sub - Length | — |
| Bit Sub - Table Bushing | Roller-type or two-piece with replaceable liner |
| Discharge Air Flow - Sea Level | — |
| Maximum Operating Pressure | — |
| Discharge Air Flow - Sea Level (1) | — |
| Maximum Operating Pressure | — |
| Discharge Air Flow - Sea Level (2) | — |
| Maximum Operating Pressure | 10.3/24.1/34.4 bar (150/350/500 psi) |
Benefits & Features
Data not available.
Standard Equipment
- ENGINE
- Metal turbo and exhaust manifold covers
- Engine pre-lube
- Additional filtration
- Coolant conditioner
- MAST
- Up to 311 mm (121⁄4 in) hole diameter
- Up to 39 009 kg (86,000 lb) rated capacity single cylinder pulldown/hoist system
- Up to 41 347 kg (91,152 lb) bit load with one pipe in the drill string
- Patented HOBO (Hydraulically Operated Break Out) wrench operated from the cab
- Auto cable tensioning system
- 30 degree angle drilling package and mast locks and lock/unlock indicator in cab
- Winch system 1587 kg (3,500 lb) capacity
- TOP DRIVE
- Two (2) motors
- Rotation speed 0-137 rpm
- Torque up to 15 185 N·m (11,200 lbf-ft)
- OPERATOR'S CAB
- Integrated FOPS
- Totally enclosed, insulated, two-man cab
- Two (2) hinged doors with heavy duty freezer type door latch system
- Ten (10) windows (safety glass, tinted)
- Windshield wiper and washer kit
- Ergonomic operator's console with full instrumentation
- Ergonomic operator's seat with head and arm rests, retractable seat belt, air suspension mount
- Electric over hydraulic drill functions
- Auxiliary functions operated by fingertip toggle switches
- More than 3 m2 (32.4 ft2) of floor space
- Excellent visibility
- dB(A) rating of 80 or less
- Wall mounted air conditioner/heater/pressurizer, belt driven
- Rubber shock-mounts to absorb vibration
- Electric horn operated by push button in the cab
- UNDERCARRIAGE
- Crawler mounted, excavator type
- 750 mm (29.5 in) triple grousers
- Full length chain guides/rock guards
- MAINFRAME, DECKS AND WALKWAYS
- Rear deck is stationary during both angle and vertical drilling modes
- Viewing hatch in rear deck, hydraulically operated from cab to help with spotting holes
- Walkways around cab
- Wide access ladder at the cab with platform in front and at the back of the cab
- Four (4) hydraulic leveling jacks (122 cm/48 in)
- Centralized lubrication system
- Total 3217 L (850 gal) fuel tanks with isolation valves
- Additional mast rests mounted on non-drill end
- 4 × 8D maintenance free batteries
- CAROUSEL
- Hydraulically operated from the cab
- No moveable parts
- Automatic indexing
- COOLING (SINGLE, FRONT-END MOUNTED)
- Maximum ambient cooling capacity of 52° C (125° F)
- HYDRAULIC SYSTEM
- Two (2) variable displacement axial piston pumps, in closed loop system, that operate the drill rotation and tram functions
- One (1) variable displacement axial piston pump, in open loop system on demand, that operates pulldown/hoist and all auxiliary functions
- Double pump drive
- Fan circuit pump
- Dual filtration
- DRILL ACCESSORIES (TRICONE/ROTARY)
- Top sub adaptor
- Roller deck bushing
- Bit sub (229 cm/ 90 in S-S)
- Horseshoe bushing
- Bit basket
- Lifting bail
- Auto tool wrench (deck wrench)
- DUST SYSTEM
- See Optional Equipment and select the required system
- PAINT
- Standard Caterpillar colors
- MISCELLANEOUS
- Backup alarm
- Filter kit for 50-hour preventive maintenance.
- Seven (7) 60-watt LED lights for night drilling
- Side walkways and handrails with side boarding ladder
- Outside cab platform for easy access
- Tool box, mounted under walkway (tools not included)
- Lift lugs
- Towing hooks (front end)
- Battery disconnect
Optional Equipment
- DEEP HOLE PACKAGE
- Five (5) pipe capacity carousel, 12.19 m (40 ft) long drill pipe coupled to 244 cm (96 in) long bit sub for up to 75.3 m (247 ft) hole depth: – 194 mm (75⁄8 in) diameter, 12.19 m (40 ft) length S-S pipes, drill pipe not included – Single pass 14.3 m (47 ft) hole depth
- Five (5) pipe capacity carousel, 12.19 m (40 ft) long drill pipe coupled to 244 cm (96 in) long bit sub for up to 75.3 m (247 ft) hole depth: – 219 mm (85⁄8 in) diameter, 12.19 m (40 ft) length S-S pipes, drill pipe not included – Single pass 14.3 m (47 ft) hole depth
- DRILLING ACCESSORIES KIT FOR HAMMER DRILLING (in lieu of rotary drill accessories)
- Heavy duty shock sub and adaptor, bit sub, two-piece table bushing, horseshoe bushing, lifting ball, bit basket, 113.5 L (30 gal) hammer oil injection system
- DUST COLLECTION OPTIONS
- Dust Collector 4500 Series
- Water injection system for dust suppression with 1374 L (363 gal) tank mounted below front deck
- Water injection system with 2271 L (600 gal) tank mounted on the top-deck (mounted in place of Dry Dust Collector)
- Note: Dry Dust Collector and Water Injection on the same drill can be selected only with below deck tanks.
- DRILLING
- Drill pipe (see Drill Pipe Price List)
- Two-piece split bushing
- Rotary head RPM gauge, digital
- Rotary torque control
- Rotation speed 0-173 rpm
- Rotary/hammer shock sub
- Rock oiler injection system (for Tricone); 113.56 L (30 gal)
- Pipe guide roller assembly mounted on drill deck (rear deck)
- Dual purpose carousel (hammer – Tricone pipe rack/4-pod only)
- FLUIDS
- Fast fill fuel only
- Fast fill full service center (fuel, hydraulic oil, coolant, engine oil)
- Automatic lubrication system
- Drilling pipe thread lube system, activated from inside the cab
- SYSTEM PROTECTION
- Additional loop filters between pumps and motors
- Hydraulic diagnostic test station
- Engine mounted stop
- Ground level engine shutdown
- Rotating beacons (one on mast crown, one on cab, one on front-end)
- COLD WEATHER AIDS
- Diesel fired heating system (self-contained heater for engine coolant, water, hydraulic oil, fuel) – runs during engine operation
- Cab floor heater (electric fan with heater core utilizing engine coolant)
- INDICATOR SYSTEMS
- Jack retract indicators
- Tram interlock, jacks (includes indicator)
- Tram interlock, head-position
- Pipe rack interlock
- Filter indicators, centrally mounted in cab (hydraulic, compressor, air intake)
- MISCELLANEOUS
- Additional fuel tank 1374 liter (363 gal), under front end
- 24 to 12 volt converter
- Extra lighting package (five additional 60 watt LED lights)
- Blowdown hose with nozzle
- Hydraulic rear dust curtain lifting system
- Hydraulic front dust curtain lifting system
- Closed circuit camera system with two cameras for front and rear mounting and a monitor in cab
- Radio AM/FM, CD player and USB port for iPod
- Radio CB with antenna
- XIR cab glass upgrade
- Thermal double-pane glass upgrade
- Cab window shades
- Remote jump start terminals
- Main drill window cage
- Lanyard attachment – cable with traveling hook on mast, and personnel harness
- Tram remote control (pendant/cable) for operation of tram controls from ground
- Winch remote control (pendant/cable) for operation of winch while on rear deck
- 24V to 110V or 220V AC invertor
- 152 cm (60 in) leveling jacks (front end only)
- Jib crane with pedestal control mounted on rear deck
- Mechanical tool kit (reference TV014590)
- Three-point harness kit for operator's seat
- Water injection flow meter
- Cab manometer
- Extreme hot weather lubricant upgrade (compressor oil)
- Extreme hot weather lubricant upgrade (hydraulic oil)
- Basic engine shut down timer
- Cat EMS panel with Engine Data Link Connector
- Mirror kit (includes three bolt-on mirrors)
- Slope indicator mounted in cab to indicate forward and lateral angle
- Hydraulic oil temperature gauge mounted in dash
- Document holder mounted inside the cab