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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 23 737 kg (up to 52,321 lb)
  • Hole Diameter 152 - 244 mm (6.0 - 9.625 in)
  • Engine C15 (Tier 3) - 403 kW (540 hp) at 2,100 rpm
  • Horsepower capacity 135 kW
  • Product Brochure

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Product Details

Specifications

Bit Load up to 23 737 kg (up to 52,321 lb)
Hole Diameter 152 - 244 mm (6.0 - 9.625 in)
Engine C15 (Tier 3) - 403 kW (540 hp) at 2,100 rpm

Rotary Drive System

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

Undercarriage

Brake release Automatic
Brakes Spring set, hydraulic release
Front Three-point oscillating type
Gradeability mast down 53%/27.9 degrees
Maximum drive horsepower per track 146 kW
Number of rollers on each side 10
Rock guards/chain guides Standard full-length guards
Tram speed maximum 2.9 km/h
Type 2.0

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

Discharge air flow (sea level) 48
Discharge air flow (sea level) 35
Maximum operating pressure 6.9 bar
Maximum operating pressure 8.6 bar

Accessories, Tools and Handling Equipment

Bit Sub – Table bushing (optional) Roller bushing or two-piece
Bit Sub – Table bushing (standard) One (1) piece insert
Drill Pipe (optional) – Diameter (customer specification) 114 mm-178 mm (4.5 in-7.0 in)
Drill Pipe (optional) – Length 9.14 m
Drill Pipe (optional) – Optional length 10.67 m
Drill Pipe (optional) – Wall thickness 19 mm
HOBO Break-out Wrench – Location Depends on pipe diameter
Note 4-pod carousel for 8 m (26 ft 3 in) and 10 m (32 ft 9¾ in) mast, 2-pod carousel for 11 m (36 ft 0 in) mast
Pipe Rack (outside the mast) – Length of drill pipe 9.14 m
Pipe Rack (outside the mast) – Location Outside mast
Pipe Rack (outside the mast) – Optional length of drill pipe 10.67 m
Pipe Rack (outside the mast) – Size of drill pipe/capacity – 11 m (36 ft 0 in) mast, 2 pipes 114 mm to 178 mm (4.5 in to 7 in)
Pipe Rack (outside the mast) – Size of drill pipe/capacity – 8 m (26 ft 3 in) and 10 m (32 ft 9¾ in) mast, 4 pipes 114 mm to 178 mm (4.5 in to 7 in)
Pipe Rack (outside the mast) – Type Carousel, with stationary breaker plates
Top Adapter Sub – Bottom thread 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
Winch System (mounted on the mast) – Cable size 13 mm
Winch System (mounted on the mast) – Rating 1587 kg

Operator’s Cab

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

Rated Capacity

Bit/hole diameter 152-244 mm (6-9.625 in)
Depth multi-pass (10 m/32 ft 9¾ in mast) Up to 45.1 m (Up to 148 ft 0 in)
Depth multi-pass (11 m/36 ft 0 in mast) Up to 52.7 m (Up to 173 ft 0 in)
Depth multi-pass (8 m/26 ft 3 in mast) Up to 32.3 m (Up to 106 ft 0 in)

Operating Temperature

Cold weather option -40.0 ° C
Maximum ambient rating (standard) 52.0 ° C
Minimum ambient rating (standard) -1 ° C

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

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

Mainframe

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

Engine (Optional) – C27

Fuel tank 1382 L
Fuel tank 1382 L
Model C27 (Tier 2)
Model C27 (Tier 2)
Optional fuel tank 1071 L
Optional fuel tank 1071 L
Rated horsepower 652 kW
Rated horsepower 597 kW

Leveling Jacks

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

Pull-down/Hoisting Capacity

Adjustable head guide shoes Up to 23 737 kg (Up to 52,321 lb)
Cable type – 25 mm (1 in) DYFORM 8
Feed rate 0-44.8 m/min (0-147 ft/min)
Head travel (10 m/32 ft 9¾ in mast) 11.79 m
Head travel (11 m/36 ft 0 in mast) 12.50 m
Rated hoist capacity Up to 210 kN (Up to 47,100 lbf)
Rated pull-down capacity Up to 267 kN (Up to 60,000 lbf)
Retract rate 0-46.6 m/min (0-153 ft/min)

Drill Table and Work Deck

Drill deck area 6.86 m2
Table height off ground 1321 mm

Engine (Standard) – C15

Fuel tank 1382 L
Model C15 (Tier 3)
Optional fuel tank 1071 L
Rated horsepower 403 kW

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

Discharge air flow (sea level) 38
Discharge air flow (sea level) 43
Discharge air flow (sea level) 33
Maximum operating pressure 10.3/24.1 bar (150/350 psi)
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