MD6250 Rotary Blasthole Drill Specifications

MD6250 Rotary Blasthole Drill Specifications

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Specifications

Bit Load
Up to 32 655 kg (Up to 71,993 lb)
Hole Diameter
Up to 152-250 mm (Up to 6-9.8 in)
Engine
C27 ACERT™ @ 1,800 rpm

Basic Specs

11.2 m (36.7 ft) Mast - Hole Diameter Range
Up to 152-250 mm (Up to 6-9.8 in)
11.2 m (36.7 ft) Mast - Hole Depth Range - Single Pass Depth
36.7ft
11.2 m (36.7 ft) Mast - Hole Depth Range - Multi Pass Depth
Down to 53.9 m (Down to 176.7 ft)
11.2 m (36.7 ft) Mast - Pulldown Capacity
Up to 20 411 kg (Up to 45,000 lb)
11.2 m (36.7 ft) Mast - Hoist Capacity
Up to 20 411 kg (Up to 45,000 lb)
11.2 m (36.7 ft) Mast - Hoist Speed
2.65ft/s
11.2 m (36.7 ft) Mast - Bit Load - Single Pass
Up to 22 321 kg (Up to 49,210 lb)
13.6 m (44.6 ft) Mast - Hole Diameter Range
Up to 152-250 mm (Up to 6-9.8 in)
13.6 m (44.6 ft) Mast - Hole Depth Range - Single Pass Depth
44.6ft
13.6 m (44.6 ft) Mast - Hole Depth Range - Multi Pass Depth
Down to 37.9 m (Down to 124.6 ft)
13.6 m (44.6 ft) Mast - Pulldown Capacity
Up to 29 483 kg (Up to 65,000 lb)
13.6 m (44.6 ft) Mast - Hoist Capacity
Up to 22 113 kg (Up to 48,750 lb)
13.6 m (44.6 ft) Mast - Hoist Speed
2.16ft/s
13.6 m (44.6 ft) Mast - Bit Load - Single Pass
Up to 32 655 kg (Up to 71,993 lb)
U.S. EPA Tier 2 Equivalent - Engine
C27 ACERT™ @ 1,800 rpm
U.S. EPA Tier 2 Equivalent - Emissions
U.S. EPA Tier 2 equivalent
U.S. EPA Tier 4 Final - Engine
C27 ACERT @ 1,800 rpm
U.S. EPA Tier 4 Final - Emissions
U.S. EPA Tier 4 Final
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)
Angle Drilling
Vertical to 30° (in 5° increments)
U.S. EPA Tier 2 Equivalent - Power Rating (ISO 14396)
826HP
U.S. EPA Tier 4 Final - Power Rating (ISO 14396)
872HP

Engine Choices

Components (1)
Dual starter motors
Components (2)
Common air intake filters provide +500 hour service interval in normal operating conditions
Components (3)
Ether starting aid (ether bottle supplied locally)
Features
Scheduled oil sampling (S·O·SSM) ports

Compressor Choices

DTH Drilling
Includes tool lubrication system and hammer storage
DTH Drilling - 1350 cfm/500 psi
38.2 m³/min (1,350 ft³/min) @ 34.4 bar (500 psi) includes 113.5 L (30 gal) tool oiler
DTH Drilling - 1500 cfm/350 psi
42.4 m³/min (1,500 ft³/min) @ 24.1 bar (350 psi) includes 113.5 L (30 gal) tool oiler
Rotary Drilling
Optional tool lubrication system
Rotary Drilling - 2000 cfm/125 psi
56.6 m³/min (2,000 ft³/min) @ 8.6 bar (125 psi)
Choice
Electronic compressor control and regulation with purged air lines
Note
With the compressor’s variable volume control, the operator can limit air output resulting in reduced fuel consumption. Both high and low pressure compressors contain this feature.

Receiver Tank Choices

Choice (1)
Low pressure 8.6 bar (125 psi) for ASME/CRN/AU or CE
Choice (2)
High pressure 24.1 or 34.4 bar (350 or 500 psi) for ASME/CRN/AU or CE

Cooling

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

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, with a provision for fuel tanks.
Climate Level 4 Arctic Fluids and Lubricants (3)
Full Arctic lubricant package to include: engine oil, compressor oil 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, compressor control box, heat trace for compressor control lines, heat trace for hosing from water tank to water pump and water fast-fill assembly, plu
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.

Frame and Work Deck

Features (1)
Jacks, mast pivot and deck are welded integrally to mainframe for maximum durability and long life
Features (2)
Slip resistant surfaces
Features (3)
Fuel tank capacity 1416 L (374 gal)
Features (4)
Fuel capacity expansion for additional 1416 L (374 gal)
Features (5)
Three (3) egress points on deck areas in addition to main access
Features (6)
Walk-around cab access (with railing and toe guards) for cab perimeter to drill deck (option)
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)
Pipe guide roller assembly mounted on drill deck for loading drill pipe
Components (6)
Cab-roof access ladder with guard plus roof safety railing for ease of access to air conditioner/pressurizer/heater (option)
Features (7)
Platform to mount fire suppression bottles and/or diesel gen set on non-drill-end (option)

Frame Access Choices

Choice (1)
Fixed access stairs to the cab area
Choice (2)
Cascading hydraulic stairs with walkway around the cab to the drill deck (option). Includes jack and tram interlock activated when the stairs are down

Drill Deck Misc.

Components (1)
Toolbox (option)
Components (2)
Hydraulic viewing hatch on drill deck with spotlight (option)
Components (3)
Drill pipe thread greaser actuated from the cab (option)
Components (4)
Jib crane ready (option)

Undercarriage

Model
Cat® 336E EL Excavator type
Carrier Rollers
Three (3)
Track chain guards and guides
Level two
Drawbar Pull
93745lbf
Triple Grousers (1)
600 mm (23.6 in); for hard rock 0.88 bar (12.7 psi) ground pressure
Triple Grousers (2)
750 mm (29.5 in); for soft rock 1.10 bar (15.9 psi) ground pressure
Lower rollers
Twelve (12)
Travel Speed
1.5mile/h

Hydraulics

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

Width Non-Cab End
15.9ft
Width Cab End
18.45ft
Note
Width and length dimensions include: cascading stairs and walk-around access for cab.
Mast Only Shipping Length
61.4ft
Height - Mast Up
61.13ft
Body Length
38.41ft
Length - Mast Down
66.17ft
Height - Mast Down
16.84ft

Tool Package DTH

Components (7)
Pipe wiper seal
Components (8)
Drill tool lubricator is included with selection of DTH Compressor
Components (1)
Two-piece roller deck bushings
Components (2)
Pipe positioner rollers
Components (3)
Deck wrench
Components (4)
Shock sub
Components (5)
Top Sub
Components (6)
Hammer Sub

Tool Package Rotary

Components (7)
Drill tool lubricator (optional)
Components (8)
Shock sub (option)
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

Dimensions (Approximate) - 11.2 m (36.7 ft) Mast

Width Non-Cab End
15.9ft
Width Cab End
18.45ft
Note
Width and length dimensions include: cascading stairs and walk-around access for cab.
Mast Only Shipping Length
53.5ft
Height - Mast Up
56.3ft
Body Length
38.41ft
Length - Mast Down
58.3ft
Height - Mast Down
16.84ft

Safety and Security

Components (13)
Lifting lugs
Components (14)
Front window guard (option)
Feature (1)
Platform on non-drill-end for mounting fire suppression bottles and/or diesel gen set (option)
Feature (2)
Approach angle of 15 degrees facilitates loading and unloading on a lowboy
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
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

Carousel (Mast size and pipe diameter dependent)

Standard carousel pipe: 6.1 m (20 ft) pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4)
– 127 mm (5.0 in)
– 140 mm (5.5 in)
– 152 mm (6.0 in)
– 165 mm (6.5 in)
– 178 mm (7.0 in)
– 194 mm (7.625 in)
Standard carousel pipe: 10.6 m (35 ft) pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4)
– 127 mm (5.0 in)
– 140 mm (5.5 in)
– 152 mm (6.0 in)
– 165 mm (6.5 in)
– 178 mm (7.0 in)
– 194 mm (7.625 in)
Dual purpose carousel pipe: 11.2 m (36.7 ft) Mast: holds quantity of two (2) 10.6 m (35 ft) pipes and quantity of two (2) 7.62 m (25 ft) pipes, and adaptors to connect to DTH hammer and tricone bit (DTH hammer and tricone not included)
Dual purpose pipe carousel accepts 140 mm (5.5 in) or 168 mm (6.625 in) pipe – contact factory for additional pipe diameters

Dust Control Choices

Water Injection plus Dry Dust Collector (2)
Self-cleaning filters, dust chute with ejector
Water Injection plus Dry Dust Collector (1)
127 m³/min (4,500 ft³/min) dust collector; includes standard water injection
Water Injection - Tank Mounted Below Front Deck
336gal (US)
High Volume Water Injection - Maximum - Tanks Total Capacity
736gal (US)
Tank Below Deck - Capacity - Isolated for Extreme Cold Weather
336gal (US)
Tank Above Deck - Capacity
400gal (US)
Choices (1)
Water flow meter, volume control, tank fill level indicator
Choices (2)
Static dust curtains, four sided/boxed enclosed
Choices (3)
Dust curtain hydraulic lifters raise front and rear dust curtains (option) (recommended with dust collector)
Choices (4)
Tram off spray to wet the ground around the cuttings pile (option)

Mast and Pipe Carousel Features

Features (1)
Pipe 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
Features (2)
Pipe carousel, dual purpose:
– 11.2 m (36.7 ft) Mast: holds quantity of two (2) 10.6 m (35 ft) pipes and quantity of two (2) 7.62 m (25 ft) pipes, and adapters to connect to DTH hammer and tricone bit (DTH hammer and tricone not included)
– Accepts
Features (3)
Vertical or angle drilling 0-30°; in 5° increments
Features (4)
Hydraulically actuated, self-indexing pipe carousel accepts pipe diameters from 127 mm (5.0 in) to 194 mm (7.625 in)
Features (5)
Drill strings configured for bit changes (above the deck)
Features (6)
Single cylinder pulldown/hoist system
Features (7)
Auto tensioning of pull down and hoist cables
Features (8)
Sliding deck wrench assembly
Features (9)
Configured with roller deck bushing
Features (10)
Overhead winch with cable and hook plus remote control; variable speed drive with ? 1818 kg (4,000 lb) rating, length to reach 6.1 m (20 ft) past drill deck (option)
Features (11)
Tool oiler, 113.5 L (30 gal) oil injection system (option for low pressure compressor configurations)
Features (12)
Variable grip hydraulic break out wrench range choices are 114 mm to 152 mm (4.5 in to 6.0 in) or 152 mm to 216 mm (6.0 in to 8.5 in)
Features (13)
Closed circuit camera in mast is used to view pipe carousel/top drive operation while racking pipes
Features (14)
Pipe positioner for angle drilling or multi-pass pipe handling, actuated from the cab, with safety interlocks
Features (15)
Rotation gear box with single motor, up to 160 rpm, up to 11 600 N?m (8,555 lbf-ft) torque

Mast Accessories

Accessory (1)
11.2 m (36.7 ft) or 13.6 m (44.6 ft) Manual pipe catcher – One (1) wire rope pipe catcher, manual bit basket
Accessory (2)
11.2 m (36.7 ft) Mast, One (1) hydraulically actuated pipe catcher, hydraulically operated bit basket
Accessory (3)
13.6 m (44.6 ft) Mast, One (1) hydraulically actuated pipe catcher, plus one (1) wire rope pipe catcher, hydraulically operated bit basket

Overhead Winch System with Remote - Option

Capacity Rating
4000lb
Cable Diameter
0.5in
Reach - Past the Drill Deck
20ft
Components
Variable speed drive

Rotary Head Top Drive System

Torque - Single Motor
8629lb/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

Operator Environment

Cab Design
– Spacious FOPS cab has 3 m2 (32.3 ft2) floor space with an integrated operator station
– Cab rubber shock-mounts absorb mechanical vibration and restrict exterior noise
– Operator station design integrates an ergonomic seat, joystick controls with
Cab Packages
– Standard configuration includes a fabric seat, single pane window glass, and wiper for the driller window
– Premium configuration includes additional storage, a leather seat with heat and ventilation, heavy duty suspension, dual pane window glass, a
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)
– Fold away trainer’s seat with seat belt (option)
Windows
– Large windows front, rear and right cab side; full length drill window with guard
– Windshield wipers with a common washer tank
– Window shades (option)
– Manometer Pressure Gauge (option)
Lighting
– LED interior lights and map light at operators seat, backlit joysticks and keypads
– Flood lights for the drill perimeter
– Spot lights for power group area; drill deck; mast carousel; access ladder and walkways
– Standard lighting is 1,300 lum
HVAC
– Floor heating vent
– Roof-mounted air conditioner/heating/pressurizing unit
– Filter access from deck, 500 service interval
– Defogging HVAC vents on main window
Cameras
– Three (3) CC cameras (front and left side) providing 360° vision coverage from operators seat; camera on the mast to view pipe carousel/top drive operation

Operating System Controls - Standard

Components (1)
All electric controls for drilling, tramming, leveling plus auxiliary functions
Components (2)
Rotary torque control
Components (3)
Virtual rotary head travel stops
Components (4)
Pipe positioner engaged/disengaged indicator, with interlock
Components (5)
Drill depth meter
Components (6)
Drill performance and display system
Components (7)
Delayed engine shut down
Components (8)
Filter indicators for hydraulic, fuel, compressor and engine
Components (9)
Jack pressure sensors in display
Components (10)
Data logging of machine health with warnings and fault code records with export capability
Components (11)
Dust suppression control
Components (12)
Mast lock indicator
Components (13)
ECM proportional fan speed control system
Components (14)
Tram interlock, machine stability limits
Components (15)
Tram interlock, pipe in hole
Components (16)
Tram interlock, mast up and locked or down and parked
Components (17)
Tram interlock, jack retracted
Components (18)
Tram interlock, winch parked
Components (19)
Cab environment controls (AC, filter, heat, fan speeds)
Components (20)
Pre wired for Terrain and Autonomous Operation
Components (21)
Drill Assist automated functionality:
– Auto level, auto jack retract
– Auto mast raise and lock, auto mast unlock and park

Premium Controls

Components (1)
Drill Assist automated functionality:
– Auto drill single pass (option)

Automation and Technology

Type (1)
Cat Terrain ready
Type (2)
Autonomy ready
Components (1)
Drill performance indicators: feed and rotary torque pressure, head RPM, bit air pressure, target depth and drill depth, pipe counter, water injection flow rate, advance per revolution, rate of penetration
Components (2)
Drill Assist (auto level, auto retract jacks, auto raise and lower mast, single-pass auto drill)
Components (3)
Product Link Elite

Service Packages

Package (1)
Basic – Centralized manual lubrication for all pivot points, gravity fill for fuel and water
Package (2)
Standard – Fast fill for fuel and water, automated lubrication system (option)
Package (3)
Service center for lubricant drain and fill, automated lubrication system, fast fill fuel and water, blow down hose (option)

Weights

Working Weight Range
56 468 kg to 64 154 kg (124,490 lb to 141,436 lb)

Description

The MD6250 crawler-mounted blasthole drill is designed to drill from 152-250 mm (6-9.8 in) diameter holes in Rotary or DTH (Down the Hole) modes to single pass or multi pass depths.The Cat® MD6250 rotary drill is built from the ground up with 100 percent 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 hard rock drilling application.