MD6290^Non-Current

Specifications

Bit Load	up to 23 733 kg (up to 52,321 lb)
Hole Diameter	152 - 250 mm (6.0 - 9.875 in)
Engine	C15 ACERT - 403 kW (540 hp) at 2,100 rpm

Rated Capacity

Depth Multi Pass (10 m/32 ft 9¾ in Mast)	Down to 52.7 m (Down to 173 ft 0 in)
Bit/Hole Diameter	152-250 mm (6-9.875 in)

Operating Temperature

Cold Weather Package Option	—-40 °F-40 °C
Maximum Ambient Rating - Standard	—125 °F52 °C

Pull-Down/Hoisting Capacity

Feed Rate	0-44.8 m/min (0-147 ft/min)
Head Travel (10 m/32 ft 9¾ in Mast)	—464 in11.79 m
Bit Load Force	Up to 23 733 kg (Up to 52,321 lb)
Rated Hoist Capacity	Up to 21 364 kg (Up to 47,100 lbf)
Retract Rate	0-46.6 m/min (0-153 ft/min)
Rated Pull-Down Capacity	Up to 27 216 kg (Up to 60,000 lbf)
Cable Type - 25 mm (1 in)	DYFORM 8

Rotary Drive System

Horse Power Capacity	—182 HP135 kW
Torque	0-12 880 N·m (0-9,600 lbf-ft)

Operator's Cab

Height - Inside	—76.5 in1943 mm
Windows - Tinted Safety Glass in Rubber Mounting	—0.25 in6 mm
Other	Window wipers and washers
Number of Windows	10
Type	Shock-mounted; two-man, integrated FOPS certified
Climate Control	Wall mounted, AC/heating/pressurizing unit
Number of Doors	2 with windows (included in above)
Floor Area	—32.4 ft²3 m²

Undercarriage - Cat 336L

Rock Guards/Chain Guides	Standard full-length guards
Tram speed - Low speed	—1.3 mile/h2 km/h
Tram Speed - Maximum	—1.95 mile/h3.14 km/h
Maximum Drive Horse Power per Track	—196 HP146 kW
Number of Rollers - Each Side	10
Front	Three-point oscillating type
Brakes	Spring set, hydraulic release
Brake Release	Automatic

Mainframe

Jacks, Mast Pivot and Deck	Welded integrally to mainframe
Machine Deck	Access both sides

Drill Table and Work Deck

Drill Deck Area	—73.8 ft²6.86 m²
Table Height Off Ground	—52 in1321 mm

Engine - Standard - C15

Fuel Tank	—365 gal (US)1382 l
Optional Fuel Tank	—283 gal (US)1071 l
Model	C15 ACERT*
Rated Horse Power	—540 HP403 kW
Note	*U.S. EPA Tier 3/EU Stage IIIA equivalent

Engine - Optional - C27: Option 1

Rated Horse Power	—800 HP597 kW
Fuel Tank	1382 L (365 gal)<br>1071 L (283 gal)
Model	C27 ACERT*
Note	*Tier 2 equivalent

Engine - Optional - C27: Option 2

Rated Horse Power	—875 HP652 kW
Model	C27 ACERT*
Fuel Tank	1382 L (365 gal)<br>1071 L (283 gal)
Note	*Tier 2 equivalent

Leveling Jacks

Pad Diameter	—24 in610 mm
Lift Capacity - Each	—66500 lbf290 kN
Number	4

Accessories, Tools and Handling Equipment

Top Adapter Sub - Top Thread (API Reg.)	—5.5 in140 mm
Top Adapter Sub - Diameter	Depends on pipe diameter
Pipe Rack (Outside the Mast) - Location	Outside mast
Drill Pipe - Optional - Diameter - Customer Specification	127 mm-178 mm (5.0 in-7.0 in)
Winch System - Cable Size - Mounted on the Mast	—0.5 in13 mm
Drill Pipe - Optional - Length	—35 ft10.67 m
Drill Pipe - Optional - Threads	Depends on pipe diameter
Top Adapter Sub - Length	—28 in711 mm
Bit Sub - Deck Bushing - Table Bushing	Roller bushing or two-piece
Drill Pipe - Optional - Wall Thickness	—0.75 in19 mm
Pipe Rack (Outside the Mast) - Length of Drill Pipe	—35 ft10.67 m
Pipe Rack (Outside the Mast) - Size of Drill Pipe/Capacity - 10 m (32 ft 9¾ in) Mast, 4 Pipes	127 mm to 178 mm (5.0 in to 7 in)
Pipe Rack (Outside the Mast) - Type	Carousel, with stationary breaker plates
Note	4-pod carousel 10 m (32 ft 9¾ in) mast
Winch System - Rating - Mounted on the Mast	—8000 lb3629 kg
Top Adapter Sub - Bottom Thread	Depends on pipe diameter

Compressor - Standard - Oil-Flooded, Single-Stage Screw

Discharge Air Flow - Sea Level	—1050 ft³/min30 m³/min
Maximum Operating Pressure	—125 psi8.6 bar

Compressor - Optional - Oil-Flooded, Single-Stage Screw - Option 2

Discharge Air Flow - Sea Level	—1700 ft³/min48 m³/min
Maximum Operating Pressure	—125 psi8.6 bar

Compressor - Optional - Oil-Flooded, Single-Stage Screw - Option 1

Maximum Operating Pressure	—125 psi8.6 bar
Discharge Air Flow - Sea Level	—1250 ft³/min35 m³/min

Compressor - Optional - Oil-Flooded, Two-Stage Screw - High-Pressure

Maximum Operating Pressure	—350 psi24.1 bar
Discharge Air Flow - Sea Level	33 m3/min (1,150 ft3/min)<br>38 m3/min (1,350 ft3/min)<br>43 m3/min (1,500 ft3/min)