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Rotary Drills

Cat® rotary drills are available in six models, with a maximum bit load range of up to 75 000 kg (165,347 lb), to suit a wide variety of applications. They're proven to deliver efficiency, high productivity and low cost, as well as provide a comfortable environment for the operator. Cat® track drills are designed for optimum performance and serviceability, while maintaining the ruggedness and reliability our customers have come to expect. Fast cycle times and a low operating cost are achieved through our proven designs that offer enhanced maneuverability, better pattern coverage, and faster set-ups.

MD6290 Rotary Blasthole Drill

  • Specification Summary

  • 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
  • Bit/hole diameter 152-250 mm (6-9.875 in)
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Product Details

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

Bit/hole diameter 152-250 mm (6-9.875 in)
Depth multi-pass (10 m/32 ft 9¾ in mast) Down to 52.7 m (Down to 173 ft 0 in)

Operating Temperature

Cold weather package option -40.0 ° C
Maximum ambient rating (standard) 52.0 ° C

Pull-down/Hoisting Capacity

Bit load force Up to 23 733 kg (Up to 52,321 lb)
Rated pull-down capacity Up to 27 216 kg (Up to 60,000 lbf)
Rated hoist capacity Up to 21 364 kg (Up to 47,100 lbf)
Feed rate 0-44.8 m/min (0-147 ft/min)
Retract rate 0-46.6 m/min (0-153 ft/min)
Head travel (10 m/32 ft 9¾ in mast) 11.79 m
Cable type – 25 mm (1 in) DYFORM 8

Rotary Drive System

Torque 0-12 880 N·m (0-9,600 lbf-ft)
Horsepower capacity 135 kW

Compressor (Standard): Oil-flooded, single-stage screw

Discharge air flow (sea level) 30 m3/min
Maximum operating pressure 8.6 bar

Compressor (Optional): Oil-flooded, single-stage screw – Option 1

Discharge air flow (sea level) 35 m3/min
Maximum operating pressure 8.6 bar

Compressor (Optional): Oil-flooded, single-stage screw – Option 2

Discharge air flow (sea level) 48 m3/min
Maximum operating pressure 8.6 bar

Compressor (Optional): Oil-flooded, two-stage screw (high-pressure)

Discharge air flow (sea level) 33 m3/min (1,150 ft3/min)
38 m3/min (1,350 ft3/min)
43 m3/min (1,500 ft3/min)
Maximum operating pressure 24.1 bar

Engine (Standard) – C15

Model C15 ACERT*
Rated horsepower 403 kW
Fuel tank 1382 L
Optional fuel tank 1071 L
Note *U.S. EPA Tier 3/EU Stage IIIA equivalent

Engine (Optional) – C27: Option 1

Model C27 ACERT*
Rated horsepower 597 kW
Fuel tanks 1382 L (365 gal)
1071 L (283 gal)
Note *Tier 2 equivalent

Engine (Optional) – C27: Option 2

Model C27 ACERT*
Rated horsepower 652 kW
Fuel tanks 1382 L (365 gal)
1071 L (283 gal)
Note *Tier 2 equivalent

Operator’s Cab

Type Shock-mounted; two-man, integrated FOPS certified
Floor area 3 m2
Height inside 1943 mm
Windows (tinted safety glass in rubber mounting) 6 mm
Number of windows 10
Number of doors 2 with windows (included in above)
Climate Control Wall mounted, AC/heating/pressurizing unit
Other Window wipers and washers

Undercarriage – Cat 336L

Number of rollers on each side 10
Rock guards/chain guides Standard full-length guards
Maximum drive horsepower per track 146 kW
Brakes Spring set, hydraulic release
Brake release Automatic
Tram speed – Maximum 3.14 km/h
Tram speed – Low speed 2.0 km/h
Front Three-point oscillating type

Mainframe

Jacks, mast pivot and deck Welded integrally to mainframe
Machine deck Access both sides

Leveling Jacks

Number 4
Lift capacity (each) 290 kN
Pad diameter 610 mm

Drill Table and Work Deck

Table height off ground 1321 mm
Drill deck area 6.86 m2

Accessories, Tools and Handling Equipment

Note 4-pod carousel 10 m (32 ft 9¾ in) mast
Drill Pipe (optional) – Diameter (customer specification) 127 mm-178 mm (5.0 in-7.0 in)
Drill Pipe (optional) – Wall thickness 19 mm
Drill Pipe (optional) – Length 10.67 m
Drill Pipe (optional) – Threads Depends on pipe diameter
Top Adapter Sub – Diameter Depends on pipe diameter
Top Adapter Sub – Length 711 mm
Top Adapter Sub – Top thread (API Reg.) 140 mm
Top Adapter Sub – Bottom thread Depends on pipe diameter
Bit Sub (deck bushing) – Table bushing Roller bushing or two-piece
Pipe Rack (outside the mast) – Type Carousel, with stationary breaker plates
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) – Length of drill pipe 10.67 m
Pipe Rack (outside the mast) – Location Outside mast
Winch System (mounted on the mast) – Rating 3629 kg
Winch System (mounted on the mast) – Cable size 13 mm
Catepillar Equipments