Caterpillar MD6290 BROCHURE

Specifications

®

Cat

MD6290

Rotary Blasthole Drills

Rated Capacity

Bit/hole diameter 152-270 mm (6-10.625 in)

Depth single-pass (8 m mast) Up to 8.6 m (28 ft 2 in)
Depth multi-pass Up to 45.1 m (148 ft)

Depth single-pass (10 m mast) Up to 10.1 m (33 ft 2 in)
Depth multi-pass Up to 52.7 m (173 ft)

Depth single-pass (11 m mast) Up to 11.0 m (36 ft)
Depth multi-pass Up to 32.3 m (106 ft)

Operating Temperature

Min. ambient rating (standard) -28°C (-20°F)

Cold weather option -40°C (-40°F)

Max. ambient rating (standard) 52°C (125°F)

Altitude Up to 4 572 m (15,000 ft)

Pull-down/Hoisting Capacity

Rated pull-down capacity Up to 267 kN (60,000 lbf)

Rated hoist capacity Up to 210 kN (47,100 lbf)

Feed rate 0-42.9 m/min (0-141 fpm)

Retract rate 0-44.8 m/min (0-147 fpm)

Type Open-loop, hydraulic
(stationary barrel, moving rod)

Number of cylinders 1

Pull-down cylinder stroke 5.1 m (202 in)
(8 m mast)

Head travel (8 m mast) 10.26 m (404 in)

Pull-down cylinder stroke 5.89 m (232 in)
(10 m mast)

Head travel (10 m mast) 11.79 m (464 in)

Pull-down cylinder stroke 6.25 m (246 in)
(11 m mast)

Head travel (11 m mast) 12.50 m (492 in)

Cylinder bore 178 mm diameter (7 in)

Cylinder rod 127 mm diameter (5 in)

Cable type 25 mm (1 in) DYFORM 8

Cable sheaves (cylinder) 406 mm OD (16 in)

Cable sheaves (top & bottom) 559 mm OD (22 in)

Sheave guards Standard at bottom plate

Adjustable head guide shoes Steel with replaceable Nylatron™

Rotary Blasthole Drill—MD6290

Rotary Drive System

Rotation speed 0-220 rpm

Torque 0-12 880 Nm (0-9,500 ft-lb)

Horsepower capacity 139 kW (186 hp)

Gearbox Casting design

Main thrust bearing Taper roller

Lubrication Oil ooded

Gearing Straight spur

Ratio 16:1

Drive motor See Hydraulic System

Cooler Assembly

Radiator-CAC-Oil Cooler Assembly for Cat® C15

(Tier III) 403 kN (540 hp), single, front-end mounted

Air-nned, three-core, radiator/aftercooling/hydraulic
side-by-side compressor, CAC-stacked

Cooler height 1 397 mm (55 in)

Cooler width 2 692 mm (106 in)

Fan 1 219 mm (48 in) diameter; 10 blades

Fan speed 1,525 rpm

Fan guard Welded

Engine radiator
Top tank Sealed top tank, pressure cap,
overow tube and sight glass
Coolant connections 64 mm (2.5 in) top tank;
89 mm (3.5 in) bottom tank

Compressor oil core hose connection
64 mm (2.5 in) O-ring boss

Hydraulic oil cooler
Hose connections 41 mm (1.625 in) O-ring boss
Air-to-air cooler 114 mm (4.5 in) O.D.
Standard ambient rating 52˚ C (125˚ F)

Rotary Blasthole Drill—MD6290

Cooler Assembly (continued)

Radiator-CAC-Oil Cooler Assembly for Cat® C27

(Tier II) 597 kW (800 hp), single, front-end mounted

Air-nned, four-core, radiator/hydraulic side-by-side
compressor, CAC–stacked

Cooler width 2896 mm (114 in) dual fan

Cooler height 1651 mm (65 in) dual fan

Fan 1168 mm (46 in) diameter,
two fans, 16 blades

Fan speed 1,700 rpm

Fan guard Welded

Engine radiator
Top tank Sealed deaeriation tank,
pressure cap, overow tube
and sight glass
Standard ambient rating 52˚ C (125˚ F)

Radiator-CAC-Oil Cooler Assembly for Cummins QXR-15

Tier III; 362 kW or 399 kW (485 hp or 535 hp), single,
front-end mounted

Air-nned, three-core, radiator/aftercooling/hydraulic side-by­side compressor, CAC-stacked

Cooler height 1 397 mcm (55 in)

Cooler width 2 692 mm (106 in)

Fan 1 219 mm (48 in) diameter; 10 blades

Fan speed 1,525 rpm

Fan guard Welded

Engine radiator
Top tank Sealed-top tank, pressure cap,
overow tube and sight glass
Coolant connections 64 mm (2.5 in) top tank;
90 mm (3.5 in) bottom tank
Compressor oil core
hose connection 64 mm O-ring boss (2.5 in)

Hydraulic oil cooler
Hose connections 41 mm O-ring boss (1.625 in)
Air-to-air cooler 1 144 mm (4.5 in) O.D.
Standard ambient rating 52˚ C (125˚ F)

Radiator-Coolant-Oil Cooler Assembly for
Cummins QSK-19

Tier I; 559 k

Air-nned, three-core, radiator/hydraulic side-by-side
compressor-stacked

Cooler width 2 581 mm (101.625 in) single fan

Cooler height 1 549 mm (61 in) single fan

Fan 1 219 mm (48 in) diam, 10 blades

Fan speed 1,525 rpm

Fan guard Welded

Engine radiator
Top tank Sealed deaeriation tank, pressure cap,
overow tube and sight glass
Standard ambient rating 52˚ C (125˚ F)

W (

750 hp), single, front-end mounted

Cooler Assembly (continued)

Radiator-CAC-Oil Cooler Assembly for Cummins QSK-19

Tier II; 567 kW (760 hp), single, front-end mounted

Air-nned, four-core, radiator/hydraulic side-by-side
compressor, CAC–stacked

Cooler width 2 896 mm (114 in) dual fan

Cooler height 1 651 mm (65 in) dual fan

Fan 1 168 mm (46 in) diameter,
two fans, 16 blades

Fan speed 1,700 rpm

Fan guard Welded

Engine radiator
Top tank Sealed deaeriation tank, pressure cap,
overow tube and sight glass
Standard ambient rating 52˚ C (125˚ F)

Compressor

Compressor (Standard)

Type Oil-ooded, single-stage screw

Discharge air ow 30 m3/min (1,050 cfm)
(sea level)

Max operating pressure 8.6 bar (125 psi)

Air cleaner
Type Dry-type with safety element/
STG 16

Oil cooling Air-to-oil cooler, thermostatically
controlled

Oil separation Vertical barrier element,
pre-separation in 136 l (36 gal)
(T-tank)

Oil ltration 12 micron replaceable element

Drive Direct coupled to engine ywheel

Controls Automatic with safety shut-down

Air shut-off Hydraulic cylinder—operated from
operator’s seat

Compressor (Optional)

Type Oil-ooded, single-stage screw

Discharge air ow
(sea level) 35 m3/min (1,250 cfm)

Max operating pressure 8.6 bar (125 psi)

Air cleaner
Type Dry type with safety element/STG 16

Compressor (Optional)

Type Oil-ooded, single-stage screw

Discharge air ow
(sea level) 48 m3/min (1,700 cfm)

Max operating pressure 6.9 bar (100 psi)

Air cleaner
Type Dry-type with safety element/SRG 20

Rotary Blasthole Drill—MD6290

Compressor (continued)

Compressor (Optional)

Type (high-pressure) Oil-ooded, two-stage screw

Discharge air ow (sea level)
33 m3/min (1,150 cfm)
38 m3/min (1,350 cfm)
43 m3/min (1,500 cfm)

Max operating pressure 10.3/24.1 bar (150/350 psi)

Air cleaner
Type Dry-type with safety element/SRG 20

Engine

Engine (Standard)

Manufacturer Caterpillar

Model C15 (Tier III)

Rated horsepower 403 kW (540 hp)

Full load 2,100 rpm

Starting system 24 V DC

Safety shut-down system Energized to run

Air cleaner
Type Dry-type with safety element
Model STG 16

Batteries Two (2) 8-D

Mufer 127 mm (5.0 in) inlet and outlet

Mufer guard 10 ga. for personal protection

Jacket water cooling/CAC
Radiator

Fuel tank 1 382 l (365 gal)
(optional tank) 1 071 l (283 gal)

Turbo & manifold covers Blankets and/or exhaust wrap

Engine (Optional)

Manufacturer Caterpillar

Model C27 (Tier II)

Rated horsepower 597 kW (800 hp)

Full load 2,100 rpm

Starting system 24 V DC

Safety shut-down system Energized to run

Air cleaner
Type Dry-type with safety element
Model SRG 20

Batteries Four (4) 8-D

Mufer 127 mm (5.0 in) inlet and outlet

Mufer guard 10 ga. for personal protection

Jacket water cooling/CAC Radiator

Fuel tank 1 382 l (365 gal)
(optional tank) 1 071 l (283 gal)

Turbo & manifold covers Blankets and/or exhaust wrap

Engine (continued)

Engine (Optional)

Manufacturer Caterpillar

Model C27 (Tier II)

Rated horsepower 652 kW (875 hp)

Full load 2,100 rpm

Starting system 24 V DC

Safety shut-down system Energized to run

Air cleaner
Type Dry-type with safety element
Model SRG 20

Batteries Four (4) 8-D

Mufer 127 mm (5.0 in) inlet and outlet

Mufer guard 10 ga. For personal protection

Jacket water cooling/CAC Radiator

Fuel tank 1 382 l (365 gal)
(optional tank) 1 071 l (283 gal)

Turbo & manifold covers blankets and/or exhaust wrap

Engine (Optional)

Manufacturer Cummins

Model QSK-19 (Non-cert)

Rated horsepower 559 kW (750 hp)

Full load 2,100 rpm

Starting system 24 V DC

Safety shut-down system Energized to run

Air cleaner
Type Dry-type with safety element
Model SRG 20

Batteries Four (4) 8-D

Mufer 127 mm (5.0 in) inlet and outlet

Mufer guard 10 ga. For personal protection

Jacket water cooling Radiator

Fuel tank 1 382 l (365 gal)
(optional tank) 1 071 l (283 gal)

Turbo & manifold covers Blankets and/or exhaust wrap

Rotary Blasthole Drill—MD6290

Engine (continued)

Engine (Optional)

Manufacturer Cummins

Model QSK-19 (Tier II)

Rated horsepower 566 kW (760 hp)

Full load 2,100 rpm

Starting system 24 V DC

Safety shut-down system Energized to run

Air cleaner
Type Dry-type with safety element
Model SRG 20

Batteries Four (4) 8-D

Mufer 127 mm (5 in) inlet and outlet

Mufer guard 10 ga. for personal protection

Jacket water cooling/CAC Radiator

Fuel tank 1 382 l (365 gal)
optional tank 1 071 l (283 gal)

Turbo & manifold covers Blankets and/or exhaust wrap

Mast

Construction ASTM 500 grade B rectangular
tubing, welded

Main chord size Front 203 mm (8 in) x 102 mm (4 in)
x 6 mm (0.25 in);
Rear 102 mm (4 in) x 102 mm (4 in)
x 13 mm (0.5 in)

Pivot and raising area Rectangular tubing A frame;
reinforced in high-stress areas

Hydraulic lines Pressure-rated steel hydraulic tubing

Hose rack Sheet steel trough for moving hoses

Table hole diameter 279 mm (11.0 in) diameter
deck hole for guide bushing

Mast-Elevating Cylinders

Number of cylinders 2

Cylinder bore 178 mm (7.0 in) diameter

Cylinder rod 89 mm (3.5 in) diameter

Cylinder stroke 965 mm (38 in)

Lift capacity each cylinder 471 kN (105,800 lbf)

Cylinder connection pins 45 mm (1.75 in) diameter

Operator’s Cab

Location To the right from the mast if
facing rear deck from the rear end

Type Shock-mounted; two-man,
integrated FOPS certied

Length at oor 1 981 mm (78 in)

Width at oor 1 518 mm (59.75 in)

Floor area 3 m2 (32.40 ft2)

Height inside 1 943 mm (76.50 in)

Operator’s Cab (continued)

Construction 12 ga. steel welded to formed
12 ga. channel and angle supports

Windows 6 mm (0.25 in) tinted safety
glass in rubber mounting

Number of windows 10

Number of doors 2 with windows
(included in above)

Left door to work deck Swing-type, HD hinge

Right door Swing-type, HD hinge

Operator’s seat One swivel-type with armrests,
headrest and retractable seatbelt

Helper’s seat Fixed folding jump seat

Insulation, wall and ceiling 25 mm (1 in) thermal

Insulation, oor 10 mm (0.375) in closed-cell
foam with 3 mm (0.125 in)
pyramid vinyl surface

Door latches Heavy-duty latches with
lockable handles

Sound levels 80 dB(A) or less

Climate Control Wall mounted,
AC/heating/pressurizing unit

Other Window Wipers and Washers

Operator’s Controls

Location Console at front and side cab
wall, placed 45˚ to the deck

Standard Engine Controls

Coolant temperature/high temperature shut-off

Oil pressure (low pressure shut-off)

Auto shut-down bypass

Start button

Stop button

Tachometer

Throttle control

Engine hourmeter

Fuel level

Voltmeter

Standard Compressor Controls

Compressor temperature

Air pressure gauge

Air shut-off control (electric) (high air temperature)

Rotary Blasthole Drill—MD6290

Operator’s Controls (continued)

Standard drilling controls

Leveling jack controls (hydraulic)

HOBO/Break-out wrench control (electric)

Mast elevation control (hydraulic)

Pull-down control (electric over hydraulic)

Pull-down pressure control (pilot hydraulic)

Rotation control (electric over hydraulic)

Propel controls (electric over hydraulic)

Carousel in/out control (electric)

Carousel indexing control (electric)

Carousel indexing (electric)

Mast lock (electric)

Dust/water injection (electric)

Dust curtain (electric)

Deck wrench control (electric)

Level indicator (bubble)

On/off light switch (electric)

Drill hourmeter (gauge)

Wiper/washer controls (electric)

Optional

Filter indicators for engine and compressor intake, lter
indicators for hydraulic uid system, indicator lights for
interlocks, rotary head rpm gauge and heating systems control

Undercarriage

Type Excavator type

Pad width 750 mm (29.5 in)

Pad type Triple grouser

Rollers Sealed, oil-ooded

Number of rollers on each side 10

Upper track chain support Two (2) carrier rollers

Rock guards/chain guides Standard full-length guards

Overall length 5 080 mm (200 in)
(variable with adjustment)

Width over tracks 3 912 mm (154 in)

Final drive Independent hydrostatic,
2-speed motors

Drive horsepower per track Maximum 152 kW (204 hp)

Brakes Spring set, hydraulic release

Brake release Automatic

Tram speed max 3.14 km/h (1.95 mph)

Gradeability mast down 66%

Rear axle 203 mm (8 in) solid

Front Three-point oscillating type

Track adjustment means Hydraulic with grease gun

Track drive disconnect Standard (Manual)

Mainframe

Main rails 203 mm x 406 mm x 13 mm
(8 in x 16 in x 0.5 mm)
ASTM 500 grade B
Rectangular tubing heavily
cross-braced and reinforced
at high-stress areas

Construction Electric welded

Jacks, mast pivot and deck Welded integrally to mainframe

Toolbox Lockable door, below
front deck

Machine deck Access both sides

Hand rails 48 mm (1.9 in) diameter x
1 219 mm (48 in) high

Tow hooks Welded, two (2) front

Leveling Jacks

Number 4

Location 2 front; 2 rear

Cylinder bore 140 mm (5.5 in)

Cylinder rod diameter 76 mm (3 in)

Cylinder stroke 1 219 mm (48 in) 1 524 mm (60 in)
optional front

Lift capacity 290 kN (65,300 lbf) each

Pad connection Link pad

Pad diameter 610 mm (24 in)

Counterbalance valves Internal at each cylinder

Inner extension boot 219 mm (8.625 in) OD,
8 mm (.322 in) wall

Drill Table & Work Deck

Table height off ground 1 321 mm (52 in)

Deck oor material Non-skid sheet metal

Drill deck length 2 661 mm (104.75 in)

Drill deck width 2 578 mm (101.5 in)

Drill deck area 6.86 m2 (73.8 ft2)

Hand rails 48 mm (1.9 in) diameter x
1 219 m (48 in) high

Dust Curtain
(Optional Hydraulic Lifters, Front and Rear)

Material 6 mm (0.25 in) rubber
nylon reinforced

Enclosed area 4.2 m2 (45.14 ft2)

Split for excess Front and rear with 305 mm
(12 in) overlap

Dust deector Natural rubber seal,
13 mm (0.5 in) thick,
356 mm (14 in) diameter

Location Directly below table bushing

Rotary Blasthole Drill—MD6290

Hydraulic System

Left Track/Rotation Pump (Closed-loop)

Type Axial piston, variable volume

Max ow 283 l/min (75 gpm)

Pressure rating 400 bar (5,800 psi)

Right Track Pump (Closed-loop)

Type Axial piston, variable volume

Max ow 283 l/min (75 gpm)

Pressure rating 400 bar (5,800 psi)

Accessory Circuit/Feed Pump (Open-loop)

Type Axial piston, variable volume

Max ow 283 l/min (75 gpm)

Pressure rating 345 bar (5,000 psi)

Fan Circuit Pump

Type Gear

Max ow 216 l/min (57 gpm) single fan;
246 l/min (65 gpm) dual fan

Pressure rating 207 bar (3,000 psi)

Track Drive Motors

(2)–Two-speed 107/125 cc

Type Bent axis xed volume

Pressure rating 414 bar (6,000 psi)

Rotation Drive Motor

Type Axial piston variable volume

Pressure rating 345 bar (5,000 psi)

Fan Drive Motor(s)

Single fan: 1 Dual fan: 2

Type Piston

Pressure rating 414 bar continuous (6,000 psi)

Pump Drive Gearbox

Type 3 pad

Drive Rubber coupler/drive shaft to
front of engine

Filtration (All lters have indicators and bypass)

Loop 12 micron, 2 per loop (optional)

Charge 3 micron, 1 per loop

Main return 12 micron absolute

Case return 12 micron absolute

Oil-Cooling System (Hydraulic Tank)

Reservoir 644 l (170 gal) with sight and
temperature gauge

Reservoir pressure Atmospheric, ltered breather

Lubrication

Centralized manual (optional auto-lubrication)

Accessories, Tools & Handling Equipment

Note: 4-pod carousel for 8 m (30 ft) and 10 m mast, 2-pod

carousel for 11 m mast

Drill Pipe (optional)

Diameter
Customer specication, 114-178 mm (4.5 in-7.0 in)

Wall thickness 19 mm (0.75 in)

Length 9.14 m (30 ft);
Optional 10.67 m (35 ft)

Diameter Wall thickness Thread Pipe Length

114 mm (4.5 in) 19 mm (0.75 in) 3 Beco 9.14 m (30 ft)

114 mm (4.5 in) 19 mm (0.75 in) 3 Beco 10.67 m (35 ft)

127 mm (5 in) 19 mm (0.75 in) 3.5 Beco 9.14 m (30 ft)

127 mm (5 in) 19 mm (0.75 in) 3.5 Beco 10.67 m (35 ft)

140 mm (5.5 in) 19 mm (0.75 in) 4 Beco 9.14 m (30 ft)

140 mm (5.5 in) 19 mm (0.75 in) 4 Beco 10.67 m (35 ft)

152 mm (6 in) 19 mm (0.75 in) 4.5 Beco 9.14 m (30 ft)

152 mm (6 in) 19 mm (0.75 in) 4.5 Beco 10.67 m (35 ft)

165 mm (6.5 in) 19 mm (0.75 in) 4.5 Beco 9.14 m (30 ft)

165 mm (6.5 in) 19 mm (0.75 in) 4.5 Beco 10.67 m (35 ft)

178 mm (7 in) 19 mm (0.75 in) 4.5 Beco 9.14 m (30 ft)

178 mm (7 in) 19 mm (0.75 in) 4.5 Beco 10.67 m (35 ft)

Top Adapter Sub

Diameter Depends on pipe diameter

Length 711 mm (28 in)

Top thread 140 mm (5.5 in) API Reg.

Bottom thread Depends on pipe diameter

Bit Sub

Diameter Depends on pipe diameter

Length 762 mm (30 in) for 8- and 10-ft mast,
1 524 mm (60 in) for 11-m mast

Top thread Depends on pipe diameter

Bottom thread Depends on pipe diameter

Table bushing One (1) piece insert standard,

Optional: roller bushing or two-piece

Deck Wrench

Location Drill deck

Wrench plate 76 mm (3 in) T1- Steel

Wrench positioning Hydraulic cylinder

Impact means Stationary jaw

Rotary Blasthole Drill—MD6290

Accessories, Tools and Handling Equipment (continued)

HOBO Break-Out Wrench

Location Outside mast, under pipe rack

Support Pivot

Wrench type Patented HOBO (Hydraulically
Operated Break-Out)

Power Hydraulic Cylinders

Accessories, Tools and Handling Equipment (continued)

Pipe Rack (outside the mast)

Type Carousel, with stationary breaker plates

Size of drill pipe/capacity
114 mm to 178 mm (4.5 in to 7 in)/
8 m and 10 m mast, 4 pipes

Size of drill pipe/capacity
114 mm to 178 mm (4.5 in to 7 in)/
11 m mast, 2 pipes

Length of drill pipe

9.14 m (30 ft); optional 10.67 m (35 ft)

Pipe rack swing Hydraulic cylinders (2)

Pipe rack index Hydraulic motor through chain drive

Location Outside mast

Winch–Mounted on the mast

Rating 3 629 kg (8,000 lb)

Cable size 13 mm (0.5 in)

Safety hook Swivel-type positive lock

Basic Shipping Weights and Dimensions

Quantity Description of Goods Approximate Dimensions

Truck one (1) Model MD6290 Rotary Blasthole drill c/w 1 each Owner/Operator manual 10.82 m (35 ft 5 in) L x
and warranty packet stowed within cab 4.06 m (13 ft 3 in) W x

3.96 m (13 ft) H
41 050 kg (90,500 lb)

Truck two (2) Mast assembly for Model MD6290 Rotary Blasthole drill 14.81 m (48 ft 7 in) L x
(mast for 35 ft pipe) 1.91 m (6 ft 3 in) W x

1.91 m (6 ft 3 in) H
14 514.96 kg (32,000 lb

Truck one (1) Cab half for Model MD6290 Rotary Blasthole drill c/w 1 ea. Ship out lter kit, 2.286 m (7 ft 5 in) L x
2 ea. tubes superex, 2 ea. brackets, 1 ea. bag of nuts & bolts, 2 ea. mast 0.81 m (2 ft 8 in) W x
bushings, 1 ea. horseshoe bushing, 1 ea. bit basket & 1 ea. lifting bale 2.51 m (8 ft 3 in) H
635 kg (1,400 lb)

Truck two (2) Walkway for Model MD6290 Rotary Blasthole drill c/w toolbox stowed within 2.74 m (9 ft) L x

0.86 m (2 ft 9 in) W x

1.30 m (4 ft 3 in) H

589.7 kg (1,300 lb)

Note: Final dimensions, GVW and corresponding load-out vary based on options selected and final configuration.

Performance ratings are based on 100% efficiency, and on engineering specifications and calculations in accordance with accepted industry
standards. These capacities will vary with drilling conditions. All specifications are subject to change without notice.

For more complete information on Cat products, dealer services, and industry solutions,
visit us on the web at mining.cat.com and www.cat.com

© 2012 Caterpillar Inc.
All rights reserved

CAT, CATERPILLAR, their respective logos, “Caterpillar Yellow” and the “Power Edge” trade
dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and
may not be used without permission.

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