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 MD6250 Rotary Blasthole Drill Specifications |
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Pull-Down/Hoisting Capacity |
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| Pull-Down Capacity | Up to 20 411 kg (45,000 lb) | - | - |
Specifications |
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| Hole Diameter | 165-200 mm (6.5-9.88 in) | - | - |
| Engine | Cat® C27 | - | - |
| Bit Load | Up to 32 655 kg (Up to 71,993 lb) | - | - |
Engine Choices |
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| Components (1) | Dual starter motors | - | - |
| Components (2) | Ether starting aid (ether bottle supplied locally) | - | - |
| Features | Scheduled Oil Sampling (S·O·SSM) ports | - | - |
| Emissions: Equivalent to U.S. EPA Tier 4 Final - ISO 14396 | 872 HP | - | - |
| Emissions: Equivalent to U.S. EPA Tier 4 Final - ISO 14396 (DIN) | 884 mhp (PS) | - | - |
| Emissions: Equivalent to U.S. EPA Tier 2 - ISO 14396 (DIN) | 838 mhp (PS) | - | - |
| Emissions: Equivalent to U.S. EPA Tier 2 - ISO 14396 | 826 HP | - | - |
| Emissions: Equivalent to U.S. EPA Tier 2 - Engine Power | C27 @ 1,800 rpm | - | - |
| Emissions: Equivalent to U.S. EPA Tier 4 Final - Engine Power | C27 @ 1,800 rpm | - | - |
Cooling |
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| Components (1) | Coolers with easy cleaning access | - | - |
| Components (2) | Separate engine cooling module | - | - |
| Components (3) | All cooler core sections are replaceable | - | - |
| Components (4) | Automatic variable speed fan control | - | - |
| Features | Functional in ambient temperature of 52° C (125° F) | - | - |
Climate Choices |
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| Climate Level 1 Standard Fluids and Lubricants (1) | Rated down to –1° C (30° F) | - | - |
| Climate Level 1 Standard Fluids and Lubricants (2) | Withstands high heat to 52° C (125° F) | - | - |
| Climate Level 2 Arctic Fluids and Lubricants | Rated down to –18° C (–0.4° F) | - | - |
| Climate Level 4 Arctic Fluids and Lubricants (1) | Rated down to –40° C (–40° F) | - | - |
| Climate Level 4 Arctic Fluids and Lubricants (2) | Diesel fired heating system that heats and circulates engine coolant through engine block, below deck water tank, heating elements for battery trays | - | - |
| Climate Level 4 Arctic Fluids and Lubricants (3) | Full Arctic lubricant package to include engine and hydraulic oil | - | - |
| Climate Level 4 Arctic Fluids and Lubricants (4) | Electric heating package with breaker panel to power: 120V heating blanket for compressor receiver tank, heat trace for hosing from water tank to water pump and water fast-fill assembly, plus primary tank | - | - |
| Climate Level 4 Arctic Fluids and Lubricants (5) | Shore power connection box with switchable 240-600V (50 amp) connection (diesel gen set and/or plug supplied locally). Box includes standard 50 hz battery charger, if 60 hz charger required, to be ordered via after market, refer to P-n 540-4271 | - | - |
| Climate Level 4 Arctic fluids and lubricants (6) | Breaker panel includes five (5) additional breakers for locally supplied heating elements if needed | - | - |
| Batteries, Sealed (1) | Quantity: Four (4) | - | - |
| Batteries, Sealed (2) | Quantity: Six (6) (required for cold weather Level 2 and 4 and/or semi autonomy packages) | - | - |
Frame and Work Deck |
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| Features (1) | Leveling Jacks, A-frame/mast pivot and drill deck are welded integrally to mainframe for maximum durability and long life | - | - |
| Features (2) | Primary fuel tank capacity 1416 L (374 gal) | - | - |
| Features (3) | Fuel capacity expansion for additional 1416 L (374 gal) optional for total capacity of 2832 L (748 gal); (required for autonomy packages) | - | - |
| Features (4) | Three (3) egress points on deck areas in addition to main access | - | - |
| Components (1) | Stationary drill deck; for vertical and angle drilling | - | - |
| Components (2) | Four leveling jacks provide leveling on a 7° bench (any orientation) | - | - |
| Components (3) | Heavy duty tow hooks (front end) | - | - |
| Components (4) | Four (4) lift lugs, for use with cables or chains | - | - |
| Components (5) | Fixed access stairs to the cab area | - | - |
| Components (6) | Sturdy guardrails with toe guards, self-closing gates | - | - |
Undercarriage |
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| Model | Cat® 336E EL Excavator type | - | - |
| Carrier Rollers | Three (3) | - | - |
| Track chain guards and guides | Level two | - | - |
| Drawbar Pull | 93745 lbf | - | - |
| Triple Grousers (1) | 600 mm (23.6 in); for hard rock; 0.88 bar (12.7 psi) ground bearing pressure | - | - |
| Triple Grousers (2) | 750 mm (29.5 in); for soft rock; 1.10 bar (15.9 psi) ground bearing pressure | - | - |
| Lower rollers | Twelve (12) | - | - |
| Travel Speed | 1.5 mile/h | - | - |
Hydraulics |
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| Components (1) | Two (2) primary pumps – 145 cc (piston, with proportional electronic controls) | - | - |
| Components (2) | One (1) auxiliary circuit pump – 110 cc (piston, load sensing) | - | - |
| Components (3) | Two (2) fan pumps – 74 cc (piston, with proportional electronic controls) | - | - |
| Components (4) | Two (2) charge pumps – 43.9 + 56.5 cc (double stack gear, fixed displacement) | - | - |
| Components (5) | Scheduled Oil Sampling (S·O·S) ports | - | - |
Dimensions (Approximate) - 13.6 m (44.6 ft) Mast |
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| Width Non-Cab End | 15.9 ft | - | - |
| Width Cab End | 18.45 ft | - | - |
| Note | Width and length dimensions include: cascading stairs and walk-around access for cab. | - | - |
| Mast Only Shipping Length | 61.4 ft | - | - |
| Height - Mast Up | 61.13 ft | - | - |
| Body Length | 38.41 ft | - | - |
| Length - Mast Down | 66.17 ft | - | - |
| Height - Mast Down | 16.84 ft | - | - |
Hydraulic Break Out Wrench |
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| Variable Grip Hydraulic Break Out Wrench Grip Ranges (1) | 114-152 mm (4.5-6.0 in) | - | - |
| Variable Grip Hydraulic Break Out Wrench Grip Ranges (2) | 152-216 mm (6.0-8.5 in) | - | - |
Tool Package DTH |
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| Components (7) | Pipe wiper seal | - | - |
| Components (8) | Drill tool lubricator is included with selection of DTH Compressor | - | - |
| Components (1) | Two-piece roller deck bushing | - | - |
| Components (2) | Pipe positioner rollers | - | - |
| Components (3) | Deck wrench | - | - |
| Components (4) | Shock sub | - | - |
| Components (5) | Top Sub | - | - |
| Components (6) | Hammer Sub | - | - |
Safety and Security |
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| Feature | Approach angle of 15 degrees facilitates loading and unloading on a lowboy | - | - |
| Components (13) | Lifting lugs | - | - |
| Components (1) | Alloy drill deck covers, for servicing when mast is horizontal | - | - |
| Components (2) | Seven (7) engine shut down buttons, by each drill egress/access point, in cab, in engine area, on drill deck | - | - |
| Components (3) | Over forty (40) conditional safety interlocks | - | - |
| Components (4) | Hinged window guard over the full length of the front drill window | - | - |
| Components (5) | Three (3) egress points on deck areas in addition to main access | - | - |
| Components (6) | Self-closing gates secure egress ladder locations | - | - |
| Components (7) | Electric horn activated by push button in the cab | - | - |
| Components (8) | Automatic tram alarm, audible | - | - |
| Components (9) | Under deck mounted battery box with keyed battery disconnect/starter disconnect/remote jump start terminals | - | - |
| Components (10) | Compressor air hoses with safety retention cables | - | - |
| Components (11) | Slip resistant surfaces | - | - |
| Components (12) | Tow hooks on non-drill-end | - | - |
Operator Environment |
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| Cab - Premium | – Additional storage – Leather seat with heat and ventilation – Heavy duty seat suspension – Dual pane window glass – Removable guard for driller window, plus window facing power train – Wipers for the driller window plus front and rear win |
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| Cab - Standard | – Fabric seat – Single pane window glass – Removable guard for driller window – Wiper for the driller window |
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| Cab Design | – Spacious FOPS cab is 3 m² (32.3 ft²) with an integrated operator station – Cab rubber shock-mounts – Operator station design integrates an ergonomic seat, joystick controls with full instrumentation, and dual 254 mm (10 in) color displays, high de |
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| Seating | – Seat swivels, locks and retractable, two-point/76 mm (3 in) wide seat belt, tilts (5° adjustment), lumbar support, fore/aft seat adjustment 80 mm (3.1 in) | - | - |
| Windows | – Large windows front, rear and right cab side; full length drill window with guard – Windshield wipers with a common washer tank |
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| Lighting | – LED interior lights and map light at operators seat, backlit joysticks and keypads – Flood lights for the drill perimeter – Spotlights for power group area; drill deck; mast carousel; access ladder and walkways – Lighting package includes 4,200 |
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| HVAC | – Floor heating vent – Roof-mounted air conditioner/heating/pressurizing unit – Filter access from deck – Defogging HVAC vents on main window |
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Operating System Controls - Standard |
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| Components (22) | Prewired for Terrain and autonomous operation | - | - |
| Components (23) | Drill Assist automated functionality: – Auto level, auto jack retract – Auto mast raise and lock, auto mast unlock and park |
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| Components (1) | All electric controls for drilling, tramming, leveling plus auxiliary functions | - | - |
| Components (2) | Electronic compressor control | - | - |
| Components (3) | Rotary torque control | - | - |
| Components (4) | Virtual rotary head travel stops and interlocks | - | - |
| Components (5) | Pipe positioner engaged/disengaged indicator | - | - |
| Components (6) | Drill depth meter | - | - |
| Components (7) | Drill performance and drill health display system | - | - |
| Components (8) | Data logging of machine health with warnings and fault code records with export capability | - | - |
| Components (9) | Delayed engine shut down | - | - |
| Components (10) | Rotary head rpm gauge (digital display in screen) | - | - |
| Components (11) | Filter indicators for hydraulic, fuel, compressor and engine | - | - |
| Components (12) | Jack pressure sensors in display | - | - |
| Components (13) | Dust suppression control | - | - |
| Components (14) | Mast lock indicator | - | - |
| Components (15) | ECM proportional fan speed control system | - | - |
| Components (16) | Tram interlock, machine stability limits | - | - |
| Components (17) | Tram interlock, pipe in hole | - | - |
| Components (18) | Tram interlock, mast up and locked or down and parked | - | - |
| Components (19) | Tram interlock, jack retracted | - | - |
| Components (20) | Tram interlock, winch parked | - | - |
| Components (21) | Cab environment controls (AC, filter, heat, fan speeds) | - | - |
Dimensions (Approximate) - 11.2 m (36.7 ft) Mast |
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| Width Non-Cab End | 15.9 ft | - | - |
| Width Cab End | 18.45 ft | - | - |
| Note | Width and length dimensions include: cascading stairs and walk-around access for cab. | - | - |
| Mast Only Shipping Length | 53.5 ft | - | - |
| Height - Mast Up | 56.3 ft | - | - |
| Body Length | 38.41 ft | - | - |
| Length - Mast Down | 58.3 ft | - | - |
| Height - Mast Down | 16.84 ft | - | - |
Compressor/Receiver Choices |
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| Receiver Tank Choice (1) | Low pressure 8.6 bar (125 psi) for ASME/CRN/AU or CE | - | - |
| Receiver Tank Choice (2) | High pressure 24.1 or 34.4 bar (350 or 500 psi) for ASME/CRN/AU or CE | - | - |
| Compressor - Rotary Drilling | 56.6 m³/min (2,000 ft³/min) @ 8.6 bar (125 psi) | - | - |
| Compressor - DTH Drilling (1) | 38.2 m³/min (1,350 ft³/min) @ 34.4 bar (500 psi) | - | - |
| Compressor - DTH Drilling (2) | 42.4 m³/min (1,500 ft³/min) @ 24.1 bar (350 psi) | - | - |
| Features (1) | With the compressor’s variable volume control, the operator can limit air output resulting in reduced fuel consumption | - | - |
| Features (2) | Electronic compressor control and regulation | - | - |
| Features (3) | DTH selection includes tool oiler | - | - |
Mast Packages |
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| Angle Drilling | Included with either mast | - | - |
| Mast Accessories Manual - 11.2 m (36.7 ft) or 13.6 m (44.6 ft) Mast | One (1) wire rope pipe catcher, manual bit basket | - | - |
| Mast Accessories Hydraulic - 11.2 m (36.7 ft) Mast | One (1) hydraulically actuated pipe catcher, hydraulically operated bit basket | - | - |
| Mast Accessories Hydraulic - 13.6 m (44.6 ft) Mast | One (1) hydraulically actuated pipe catcher, plus one (1) wire rope pipe catcher, hydraulically operated bit basket | - | - |
Service Tool Options |
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| Lifting Bails (Available on Request) | – API thread 89 mm (3.5 in) – to lift corresponding drill tools (6.75 in tricone bits or 6-inch class DTH hammers) – API thread 114 mm (4.5 in) – to lift corresponding drill tooling (7.875 and 9.0 in tricone bits or 8-inch class DTH hammers) – API t |
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Drill Pipe |
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| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 4 | 6.5 in | - | - |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 1 | 5 in | - | - |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 6 | 7.625 in | - | - |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 1 | 5 in | - | - |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 3 | 6 in | - | - |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 6 | 7.625 in | - | - |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 4 | 6.5 in | - | - |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 3 | 6 in | - | - |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 2 | 5.5 in | - | - |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 5 | 7 in | - | - |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 2 | 5.5 in | - | - |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 5 | 7 in | - | - |
Carousel (Mast size and pipe diameter dependent) |
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| Pipe rack carousel, standard: | – 11.2 m (36.7 ft) Mast: holds quantity of four (4) 10.6 m (35 ft) pipes – 13.6 m (44.6 ft) Mast: holds quantity of four (4) 6.1 m (20 ft) pipes |
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Mast and Pipe Rack Carousel Features |
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| Features (7) | Sliding deck wrench assembly | - | - |
| 13.6 m (44.6 ft) Mast - Hole Diameter Range: 152-250 mm (6-9.875 in) - Single-Pass Depth | 44.6 ft | - | - |
| Features (5) | Auto tensioning of pull down and hoist cables | - | - |
| 11.2 m (36.7 ft) Mast - Hoist Speed | 2.65 ft/s | - | - |
| Features (3) | Drill strings configured for bit changes (above the deck) | - | - |
| Features (1) | Mast configurations complete with pipe rack carousel and angle drilling package (vertical, out to 30 degrees in 5-degree increments) | - | - |
| Features (8) | Configured with roller deck bushing for tricone applications, two-piece deck bushing for DTH | - | - |
| Features (10) | Drill pipe positioner | - | - |
| Features (11) | Rotation gear box with single motor up to 160 rpm, up to 11 700 N∙m (8,629 lbf-ft) torque | - | - |
| Features (9) | Closed circuit camera in mast is used to view pipe rack carousel/top drive operation while racking pipes | - | - |
| Features (6) | Variable grip hydraulic break out wrench for range of pipe diameters | - | - |
| 11.2 m (36.7 ft) Mast - Hole Diameter Range: 152-250 mm (6-9.875 in) - Multi-Pass Depth | Down to 53.9 m (Down to 176.7 ft) | - | - |
| Features (4) | Single Hydraulic Cylinder and cable system for pulldown/hoist | - | - |
| Features (2) | Hydraulically actuated, self-indexing pipe rack carousel accepts pipe diameters from 127 mm (5.0 in) to 194 mm (7.625 in) | - | - |
| 13.6 m (44.6 ft) Mast - Hole Diameter Range: 152-250 mm (6-9.875 in) - Multi-Pass Depth | Down to 37.9 m (Down to 124.6 ft) | - | - |
| 13.6 m (44.6 ft) Mast - Hoist Speed | 2.16 ft/s | - | - |
| 11.2 m (36.7 ft) Mast - Bit Load (single pass) | Up to 22 321 kg (Up to 49,210 lb) | - | - |
| 11.2 m (36.7 ft) Mast - Pull-Down Capacity | Up to 20 411 kg (Up to 45,000 lb) | - | - |
| 13.6 m (44.6 ft) Mast - Bit Load (single pass) | Up to 32 655 kg (Up to 71,993 lb) | - | - |
| 13.6 m (44.6 ft) Mast - Pull-Down Capacity | Up to 29 483 kg (Up to 65,000 lb) | - | - |
| 13.6 m (44.6 ft) Mast - Hoist Capacity | Up to 16 584 kg (Up to 36,563 lb) | - | - |
| 11.2 m (36.7 ft) Mast - Hoist Capacity | Up to 15 309 kg (Up to 33,750 lb) | - | - |
Tool Package Rotary |
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| Components (1) | One-piece roller deck bushing | - | - |
| Components (2) | Pipe positioner rollers | - | - |
| Components (3) | Deck wrench | - | - |
| Components (4) | Top sub | - | - |
| Components (5) | Bit sub | - | - |
| Components (6) | Pipe wiper seal | - | - |
Rotary Head Top Drive System |
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| Torque - Single Motor | 8629 lb/ft | - | - |
| Rotation Speed | 0-160 rpm | - | - |
| Components (1) | Spindle – 140 mm (5.5 in) API regular thread with splined collar | - | - |
| Components (2) | Rotary torque control | - | - |
| Components (3) | Virtual rotary head travel interlocks | - | - |
Automation and Technology |
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| Type (1) | Cat Terrain ready | - | - |
| Type (2) | Autonomy ready | - | - |
| Components (1) | Drill depth indicator | - | - |
| Components (2) | Product Link™ Elite (hardware from factory, subscription package via dealer) | - | - |
Dust Control Choices |
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| Choices (1) | Water injection – tank mounted below front deck 1271 L (336 gal) – Water flow meter, volume control, tank fill level indicator |
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| Choices (2) | Water injection plus dry dust collector 127 m³/min (4,500 ft³/min) dust collector; includes standard water injection – Self-cleaning filters, dust chute with ejector |
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| Choices (3) | High volume water injection (maximum) – tanks total capacity 2786 L (736 gal) – Tank below deck (isolated for extreme cold weather) capacity 1271 L (336 gal) – Tank above deck capacity 1514 L (400 gal) |
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| Choices (4) | Static dust curtains, four sided/boxed enclosed | - | - |
Service Packages |
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| Package (1) | Fast fill for fuel and water, automated lubrication system | - | - |
| Package (2) | Service center for lubricant drain and fill, automated lubrication system, fast fill fuel and water, blow down hose (option) | - | - |
Weights |
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| Working Weight Range | 56 468 kg to 64 154 kg (124,490 lb to 141,436 lb) | - | - |
