MD6250 Rotary Blasthole Drill Specifications

Specifications

Bit Load

Up to 32 655 kg (Up to 71,993 lb)

Hole Diameter

152-250 mm (6-9.875 in)

Engine

C27 @ 1,800 rpm

Engine Choices

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

872HP

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

826HP

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

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

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

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

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 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

1.5mile/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

Carousel (Mast size and pipe diameter dependent)

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

Drill Pipe

6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 6

7.625in

6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 1

5in

6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 4

6.5in

10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 1

5in

6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 3

6in

10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 6

7.625in

10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 4

6.5in

10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 3

6in

10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 2

5.5in

10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast - holds quantity of four (4) - Option 5

7in

6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 2

5.5in

6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast - holds quantity of four (4) - Option 5

7in

Compressor/Receiver Choices

Compressor - Rotary Drilling

56.6 m³/min (2,000 ft³/min) @ 8.6 bar (125 psi)

Receiver Tank Choice (2)

High pressure 24.1 or 34.4 bar (350 or 500 psi) for ASME/CRN/AU or CE

Receiver Tank Choice (1)

Low pressure 8.6 bar (125 psi) for ASME/CRN/AU or CE

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

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

Hydraulic Break Out Wrench

Variable Grip Hydraulic Break Out Wrench Grip Ranges (2)

152-216 mm (6.0-8.5 in)

Variable Grip Hydraulic Break Out Wrench Grip Ranges (1)

114-152 mm (4.5-6.0 in)

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 bushing

Components (2)

Pipe positioner rollers

Components (3)

Deck wrench

Components (4)

Shock sub

Components (5)

Top Sub

Components (6)

Hammer Sub

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

Feature

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, 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

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

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 de

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

HVAC

– Floor heating vent
– Roof-mounted air conditioner/heating/pressurizing unit
– Filter access from deck
– Defogging HVAC vents on main window

Operating System Controls - Standard

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)

Service Tool Options

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

Mast and Pipe Rack Carousel Features

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

44.6ft

11.2 m (36.7 ft) Mast - Hole Diameter Range: 152-250 mm (6-9.875 in) - Single-Pass Depth

36.7ft

Features (5)

Auto tensioning of pull down and hoist cables

11.2 m (36.7 ft) Mast - Hoist Speed

2.65ft/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

2.16ft/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 22 113 kg (Up to 48,750 lb)

11.2 m (36.7 ft) Mast - Hoist Capacity

Up to 20 411 kg (Up to 45,000 lb)

Tool Package Rotary

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

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

Automation and Technology

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

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

Service 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)

Weights

Working Weight Range

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