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,

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)

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...

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...

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...

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...

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...

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