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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.
Ergonomic controls to help operators stay alert and avoid fatigue Multifunction joystick controls and touchscreen monitors a…
Cat to the core, with common parts and components and consistent design characteristics across all Cat drill models Shared s…
Common electronic architecture across all Cat machines to ensure technician familiarity Cat Electronic Technician (Cat ET) e…
Volumetric air flow control enables operator to reduce air flow by up to 50% to match a specific drilling tool and application &nb…
Integrated Drill Assist functionality, including auto level, auto retract jacks, auto raise and lower mast, and auto drill M…
Excellent visibility, thanks to multiple cameras and full-length windows MineStar Command for drilling enables remote or aut…
Large water and fuel tanks reduce time spent refilling Grouped service-access points, neat hose-runs and wiring reduce maint…
Designed to use less fuel, which reduces engine emissions Tier 4 Final engines reduce NOx and particulate matter Reduc…
| Specification | Value |
| Pull-Down Capacity | Up to 29 483 kg (65,000 lb) |
| Specification | Value |
| 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) |
| Specification | Value |
| 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 | 650 kW |
| 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 | 616 kW |
| 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 |
| Specification | Value |
| 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) |
| Specification | Value |
| 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) |
| Specification | Value |
| 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 |
| Specification | Value |
| Model | Cat® 336E EL Excavator type |
| Carrier Rollers | Three (3) |
| Track chain guards and guides | Level two |
| Drawbar Pull | 417.000 N |
| 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 | 2.45 km/h |
| Specification | Value |
| 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 |
| Specification | Value |
| Width Non-Cab End | 4.845 m |
| Width Cab End | 5.624 m |
| Note | Width and length dimensions include: cascading stairs and walk-around access for cab. |
| Mast Only Shipping Length | 18.72 m |
| Height - Mast Up | 19.546 m |
| Body Length | 11.708 m |
| Length - Mast Down | 20.18 m |
| Height - Mast Down | 5.134 m |
| Specification | Value |
| 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) |
| Specification | Value |
| 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 |
| Specification | Value |
| 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 |
| Specification | Value |
| Cab - Premium | – Additional storage<br>– Leather seat with heat and ventilation<br>– Heavy duty seat suspension<br>– Dual pane window glass<br>– Removable guard for driller window, plus window facing power train<br>– Wipers for the driller window plus front and rear windows |
| Cab - Standard | – Fabric seat<br>– Single pane window glass<br>– Removable guard for driller window<br>– Wiper for the driller window |
| Cab Design | – Spacious FOPS cab is 3 m² (32.3 ft²) with an integrated operator station<br>– Cab rubber shock-mounts<br>– 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<br>– Additional display screen for cc cameras; color, high-definition 254 mm (10 in)<br>– 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<br>– Power convertor 24V to 12V<br>– Radio-ready for communication and entertainment stereo<br>– Two swing-out doors and Cat keyed locks<br>– Literature holder<br>– 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<br>– Windshield wipers with a common washer tank |
| Lighting | – LED interior lights and map light at operators seat, backlit joysticks and keypads<br>– Flood lights for the drill perimeter<br>– Spotlights for power group area; drill deck; mast carousel; access ladder and walkways<br>– Lighting package includes 4,200 lumens flood light on perimeter, mast clearance lights, cab mounted strobe, front mounted tram beacon |
| HVAC | – Floor heating vent<br>– Roof-mounted air conditioner/heating/pressurizing unit<br>– Filter access from deck<br>– Defogging HVAC vents on main window |
| Specification | Value |
| Components (22) | Prewired for Terrain and autonomous operation |
| Components (23) | Drill Assist automated functionality:<br>– Auto level, auto jack retract<br>– 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) |
| Specification | Value |
| Width Non-Cab End | 4.845 m |
| Width Cab End | 5.625 m |
| Note | Width and length dimensions include: cascading stairs and walk-around access for cab. |
| Mast Only Shipping Length | 16.32 m |
| Height - Mast Up | 17.146 m |
| Body Length | 11.708 m |
| Length - Mast Down | 17.78 m |
| Height - Mast Down | 5.134 m |
| Specification | Value |
| 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 |
| Specification | Value |
| 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 |
| Specification | Value |
| 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)<br>– 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)<br>– API thread 140 mm (5.5 in) – to lift shock sub adapter<br>– BECO thread 102 mm (4.0 in) – to lift corresponding drill pipe (5.5 in OD)<br>– BECO thread 114 mm (4.5 in) – to lift corresponding drill pipe (6.0, 6.5, 6.625 and 7.0 in OD)<br>– BECO thread 152 mm (6.0 in) – to lift corresponding drill pipe (7.625 in OD) |
| Specification | Value |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 4 | 165 mm |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 1 | 127 mm |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 6 | 194 mm |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 1 | 127 mm |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 3 | 152 mm |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 6 | 194 mm |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 4 | 165 mm |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 3 | 152 mm |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 2 | 140 mm |
| 10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 5 | 178 mm |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 2 | 140 mm |
| 6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 5 | 178 mm |
| Specification | Value |
| Pipe rack carousel, standard: | – 11.2 m (36.7 ft) Mast: holds quantity of four (4) 10.6 m (35 ft) pipes<br>– 13.6 m (44.6 ft) Mast: holds quantity of four (4) 6.1 m (20 ft) pipes |
| Specification | Value |
| 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 | 13.6 m |
| Features (5) | Auto tensioning of pull down and hoist cables |
| 11.2 m (36.7 ft) Mast - Hoist Speed | 0.81 m/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 | 0.66 m/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) |
| Specification | Value |
| 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 |
| Specification | Value |
| Torque - Single Motor | 11.700 N·m |
| 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 |
| Specification | Value |
| 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) |
| Specification | Value |
| Choices (1) | Water injection – tank mounted below front deck 1271 L (336 gal)<br>– 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<br>– Self-cleaning filters, dust chute with ejector |
| Choices (3) | High volume water injection (maximum) – tanks total capacity 2786 L (736 gal)<br>– Tank below deck (isolated for extreme cold weather) capacity 1271 L (336 gal)<br>– Tank above deck capacity 1514 L (400 gal) |
| Choices (4) | Static dust curtains, four sided/boxed enclosed |
| Specification | Value |
| 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) |
| Specification | Value |
| Working Weight Range | 56 468 kg to 64 154 kg (124,490 lb to 141,436 lb) |
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Mantrac Kenya Ltd.
Witu Road, Off Lusaka Road,
Mansour Complex next to G4S
Headquarters Nyayo Stadium
Nairobi
P.O Box 30067
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