Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)

Product catalog summary

Specifications Overview:
The Cat® MD6240 Rotary Blasthole Drill is engineered for drilling operations with bit/hole diameters between 152-270 mm (6-10.625 in). It supports single-pass drilling depths of up to 12.80 m (42 ft) with a 12 m mast and up to 15.85 m (52 ft) with a 15 m mast. Multi-pass depths can reach 55.47 m (182 ft) and 31.08 m (102 ft) respectively. The drill operates in temperatures from -28°C (-20°F) to 52°C (125°F), with an option for cold weather down to -40°C (-40°F).

Drilling and Hoisting Capacity:
The drill has a rated pull-down and hoist capacity of up to 222 kN (50,000 lbf) and a drilling feed/retract rate of 0-38.1 m/min (0-125 fpm), utilizing a closed-loop hydraulic system with a single cylinder.

Rotary Drive System:
The rotary drive system provides a rotation speed of 0-220 rpm and a torque of up to 12,880 Nm (9,500 ft-lb), powered by a 139 kW (186 hp) motor.

Engine Options:
The standard engine is a Caterpillar C27 Tier II with 597 kW (800 hp). Optional engines include the Cummins QST-30 with 783 kW (1,050 hp) and another Caterpillar C27 Tier II with 652 kW (875 hp).

Compressor Details:
The standard compressor is an oil-flooded, single-stage screw type with a discharge air flow of 48 m3/min (1,700 cfm) and a max operating pressure of 6.9 bar (100 psi). High-pressure compressors are optional.

Mast and Operator's Cab:
The mast is made from ASTM 500 grade B rectangular tubing. The operator's cab is shock-mounted, FOPS certified, and includes climate control and sound insulation.

Hydraulic System:
The hydraulic system features axial piston pumps with a max flow of 283 l/min (75 gpm) and pressure ratings up to 414 bar (6,000 psi).

Undercarriage and Main Frame:
The undercarriage is of the excavator type with a pad width of 750 mm (29.5 in). The main frame is constructed from ASTM 500 grade B rectangular tubing.

Accessories and Tools:
Optional drill pipes are available in various diameters and lengths, with specific wall thickness and thread types.

Shipping Weights and Dimensions:
The basic shipping configuration involves multiple trucks for different components, with the main drill unit weighing approximately 44,678.5 kg (98,500 lb).

Pipe Rack Index:
The hydraulic motor is connected through a chain drive and is located outside the mast, mounted using upper and lower pillow-block bearings.

Winch Specifications:
The winch is rated at 3,629 kg (8,000 lb) and uses a cable size of 13 mm (0.5 in), featuring a swivel-type positive lock safety hook.

Notes:
Final dimensions, gross vehicle weight (GVW), and load-out vary based on selected options and final configuration. Performance ratings assume 100% efficiency and are based on engineering specifications and calculations according to industry standards. Capacities may vary with drilling conditions. Specifications are subject to change without notice.

Product Information:
For more information on Cat products, dealer services, and industry solutions, visit mining.cat.com and www.cat.com. All rights reserved by Caterpillar Inc. Trademarks include CAT, CATERPILLAR, and their respective logos.

Catalog excerpts

Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-1

Rotary Blasthole Drills Rated Capacity Bit/hole diameter Depth single-pass (12 m mast) Depth multi-pass Depth single-pass (15 m mast) Depth multi-pass Operating Temperature Min. ambient rating (standard) -28°C (-20°F) Cold weather option Max. ambient rating (standard) 52°C (125°F) Pull-down/Hoisting Capacity Rated pull-down capacity Rated hoist capacity Drilling feed /Retract rate Pull-down cylinder stroke Head travel (12 meter) Pull-down cylinder stroke Head travel (15 meter) Cylinder bore Cable type Closed-loop, hydraulic (stationary rod, moving barrel) Cable sheaves (cylinder) Cable sheaves (top and bottom) 508 mm (20 in) OD Sheave guards Standard at bottom plate Adjustable head guide shoes Steel with replaceable Automatic cable tensioning system Hydraulic cylinder,

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Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-2

Rotary Drive System Rotation speed Horsepower capacity Main thrust bearing Drive motor Casting design Taper roller Straight Spur Cooler Assembly For Cat® C27 or Cummins QST-30 Engines-Split Coolers Air-finned, three- or four-core, radiator/hydraulic stacked, compressor separate Radiator/hydraulic cooler Compressor cooler Engine radiator, top tank Sealed deaeriation tank, pressure cap, overflow tube and sight glass Standard ambient rating 52° C (125° F)

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Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-3

Compressor (Standard) Oil-flooded, single-stage screw Discharge air flow (sea level) 48 m3/min (1,700 cfm) Dry-type with safety element Air-to-oil cooler, thermostatically controlled Vertical barrier element, horizontal sump (T-tank) 12 micron replaceable element Direct coupled to engine Automatic with safety Compressor (Optional) Hydraulic cylinder-operated from operator's seat Type (high pressure) Oil-flooded, two-stage screw Discharge air flow (sea level) Dry-type with safety element/ Compressor (Optional) Type (high pressure) Oil-flooded, two-stage screw Discharge air flow (sea level) 33...

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Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-4

Engine (continued) Dry-type with safety element Muffler guard Jacket water cooling/CAC Radiator Fuel tank Turbo and manifold covers Blankets and/or exhaust wrap ASTM 500 grade B rectangular tubing, welded Main cord size Pivot and raising area Rectangular tubing A frame; reinforced in high-stress areas Hydraulic lines Pressure-rated steel hydraulic tubing Hose tray Sheet steel trough for moving hoses Table hole diameter deck hole for guide bushing Mast-Elevating Cylinders Cylinder bore Cylinder stroke Lift capacity each cylinder 556 kN (125,065 lbf) Cylinder connections pins 57 mm (2.25 in) diameter...

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Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-5

Operator's Controls (continued) Deck wrench control (electric) Level indicator (bubble) On/off light switch (electric) Drill hourmeter (gauge) Wiper/washer controls (electric) Filter indicators for engine and compressor intake, filter indicators for hydraulic fluid system, indicator lights for interlocks, rotary head rpm gauge and heating systems control Excavator type Triple grouser Sealed, oil-flooded Number of lower rollers Upper track chain support Two (2) carrier rollers Rock guards/chain guides Standard full-length guards Overall length Width over tracks Final drive Independent hydrostatic...

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Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-6

Hydraulic System (continued) Fan/Accessory Circuit Pump (Open-loop)_ Axial piston, variable volume Pressure rating Track Drive Motors (2) Bent-axis fixed volume Pressure rating Rotation Drive Motor Axial piston variable volume Pressure rating Pressure rating Pump Drive Gearbox Rubber coupler/drive shaft Filtration (AU Alters have indicators and bypass)_ Loop 12 micron, 2 per loop (optional) Main return Case return Oil Cooling System (Hydraulic Tank) temperature gauge Reservoir pressure Atmospheric, filtered breather Centralized manual (optional auto-lubrication) Accessories, Tools & Handling...

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Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-7

Pipe Rack (Ouside the mast) Carousel, with stationary pods and breaker plates Length of drill pipe Pipe rack swing Pipe rack index Hydraulic motor through chain drive Outside mast Upper, lower pillow-block bearing Cable size Safety hook Swivel-type positive lock Basic Shipping Weights and Dimensions Quantity Description of Goods Approximate Dimensions Truck one (1) Model MD6240 (12 m), Rotary Blasthole drill c/w Owner/Operator's Mast assembly for Model MD6240 (12 m), Rotary Blasthole drill Truck three (3) Cab half assembly for Model MD6240 (12 m), Rotary Blasthole drill c/w lea. #89044 filter...

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Cat® MD6240 Rotary Blasthole Drills (12 or 15 m Mast)-8

Rotary Blasthole Drill—MD6240 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. AEHQ6539

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