MD6250 Rotary Blasthole Drill Specifications

Cat® From the Ground Up. Productive From the Ground Down

The Cat® MD6250 is built from the ground up with 100% Cat parts to help you get the most out of your operation. With built-in autonomous features and the option to integrate Cat MineStar™ technologies, the MD6250 offers accurate, reliable performance in any drilling application. It’s easy to own and operate, with improved serviceability and the durability you expect from Caterpillar — backed by the world-class support of the Cat dealer network. Designed to drill holes from 165-250 mm (6.5-9.875 in) in diameter, the MD6250 is is optimized for single-pass or multi-pass drilling in both rotary and down-the-hole drilling modes.

Mining

Highlights
Features & Specs
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Equipment Highlights

WORLD-CLASS OPERATOR STATION
  • Ergonomic controls to help operators stay alert and avoid fatigue
  • Multifunction joystick controls and touchscreen monitors are easy to use and intuitive
  • Excellent visibility, thanks to multiple cameras and full-length windows
  • Optional heated and ventilated seat for enhanced operator comfort
100% CAT INTEGRATION
  • Cat to the core, with common parts and components and consistent design characteristics across all Cat drill models
  • Shared software for autonomous features
  • Backed by the world-class support of the Cat dealer network
CAT ELECTRONICS: BACKBONE OF MACHINE
  • Common electronic architecture across all Cat machines to ensure technician familiarity
  • Cat Electronic Technician (Cat ET) enables fast and easy troubleshooting
  • Serve as common platform for integrating future autonomy solutions
  • Product Link™ Elite provides real-time performance tracking
MATCHED POWERTRAIN
  • Volumetric air flow control enables operator to reduce air flow by up to 50% to match a specific drilling tool and application
  • C27 engine matched to largest “standard” compressor in this class for fast cycle times
  • Powertrain optimized to withstand rigorous drilling applications
  • High – and low -pressure configurations offer variable volume air control
  • Optimal feed force, rotary torque and air, helping to reduce fuel consumption
TECHNOLOGY AND AUTOMATION
  • Integrated Drill Assist functionality, including auto level, auto retract jacks, auto raise and lower mast, and auto drill
  • Machine health and performance monitoring keep machine running productively
  • Drill depth meter helps reduce over- and under-drilling
  • Ready to connect with the Cat MineStar suite of technologies, including Terrain for drilling and Command for drilling
SAFETY
  • Excellent visibility, thanks to multiple cameras and full-length windows
  • MineStar Command for drilling enables remote or autonomous operation — removing operator from the machine
  • Seven engine shut-down buttons and more than 40 conditional safety interlocks
  • Slip-resistant surfaces for safer ingress/egress and service
  • LED interior lights and backlit joysticks and keypads; exterior spot and flood lights illuminate paths for ingress/egress and major service points
SERVICEABILITY
  • Large water and fuel tanks reduce time spent refilling
  • Grouped service-access points, neat hose-runs and wiring reduce maintenance time
  • Cat MineStar Health offerings enable onboard health and performance monitoring
  • Extended service intervals minimize maintenance downtime
SUSTAINABILITY
  • Designed to use less fuel, which reduces engine emissions
  • Tier 4 Final engines reduce NOx and particulate matter
  • Reduced waste and lower owning and operating costs thanks to increased commonality of systems and components, plus a reduction in unique part numbers
  • Longer maintenance intervals that decrease the amount of waste contributed to the environment

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Features + Specs

Equipment Features
Optional Equipment
Specs
  • 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)
  • Working Weight Range: 56 468 kg to 64 154 kg (124,490 lb to 141,436 lb)
  • 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
  • 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
  • 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
  • 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
  • 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
  • Hole Diameter: 165-250 mm (6.5-9.875 in)
  • Engine: Cat® C27
  • Bit Load: Up to 32 655 kg (Up to 71,993 lb)
  • 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)
  • 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)
  • 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
  • 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
  • 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
  • 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
  • Choices (1): Water injection – tank mounted below front deck 1271 L (336 gal)
    – Water flow meter, volume control, tank fill level indicator
  • 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
  • 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)
  • Choices (4): Static dust curtains, four sided/boxed enclosed
  • 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 windows
  • Cab - Standard: – Fabric seat
    – Single pane window glass
    – Removable guard for driller window
    – Wiper for the driller window
  • 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 definition touchscreen and 12-volt power port
    – Additional display screen for cc cameras; color, high-definition 254 mm (10 in)
    – Three (3) cc cameras (front and left side) providing 360° vision coverage from operators seat; camera in the mast to view pipe rack carousel/top drive operation
    – Power convertor 24V to 12V
    – Radio-ready for communication and entertainment stereo
    – Two swing-out doors and Cat keyed locks
    – Literature holder
    – Removable floor mat
  • 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
  • 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 lumens flood light on perimeter, mast clearance lights, cab mounted strobe, front mounted tram beacon
  • HVAC: – Floor heating vent
    – Roof-mounted air conditioner/heating/pressurizing unit
    – Filter access from deck
    – Defogging HVAC vents on main window
  • 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 thread 140 mm (5.5 in) – to lift shock sub adapter
    – BECO thread 102 mm (4.0 in) – to lift corresponding drill pipe (5.5 in OD)
    – BECO thread 114 mm (4.5 in) – to lift corresponding drill pipe (6.0, 6.5, 6.625 and 7.0 in OD)
    – BECO thread 152 mm (6.0 in) – to lift corresponding drill pipe (7.625 in OD)
  • 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)
  • 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)
  • 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
  • Pull-Down Capacity: Up to 29 483 kg (65,000 lb)
  • 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
  • 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)
  • 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
  • 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)
  • 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
  • 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
  • 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
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