Rotary Blasthole Drill Rated Capacity Hole diameter Depth single-pass Depth multi-pass Depth single-pass Depth multi-pass Operating Temperature standard unit Cold weather option standard unit Pull-down/Hoisting Capacity Pull-down capacity Hoist capacity Drilling feed/retract rate Closed-loop hydraulic Cylinder bore Cable type Cable sheaves (cylinder) Cable sheaves (top and bottom) 610 mm (24 in) PD Sheave guards Adjustable head guide shoes Rotary Drive System Rotation speed Rotation power Main thrust bearing Drive motor Standard at bottom plate Steel with replaceable standard HSLT LSHT option Casting design Taper roller Straight spur

Cooler Assemblies Engine Radiator/Cooler Compressor (Standard) Jacket water and secondary loop, stacked single-stage screw Discharge air flow (sea level) 102 m3/min (3,600 cfm) Sealed deaeriation tank, pressure cap, overflow tube Discharge flow max. setting Discharge flow min. setting Separate cores, stacked Compressor section size Hydraulic section size Dry-type with safety Air-to-oil cooler, thermostatically controlled Fan (common to each unit) 2 per cooler - 1 067 mm diameter (42 in); Vertical barrier element, (50 gal) sump, vertical tank Direct coupled to engine Automatic with safety Hydraulic...

Engine (Standard) Detroit Diesel Rated horsepower Starting system Safety shut-down system Energized to run Dry-type with safety element Fuel tank Turbo and manifold covers Blankets, custom-fitted rectangular tubing Main chord size Pivot and raising area Rectangular tubing A frame, high-strength plate Hydraulic lines Pressure-rated steel hydraulic tubing Hose tray Bolt-on fabrications, steel lower, aluminum upper Pipe rack Feed cable tensioner Floor area Height inside Left door to drill deck Right door Operator's seat Helper's seat Insulation, floor Door latches Sound levels Climate control Adjacent...

Operator's Controls/Gauges Split console at front and side cab wall, placed so controls in operator's reach while arms resting on seat armrests Standard Engine Controls/Indicators Water temperature High water temperature shut-down Low-pressure shut-down Electric voltmeter Auto shut-down bypass Start button Stop button Fuel primer Throttle control On/off light switch Drill hour Fuel level Diagnostic connection Diagnostic fault and indicator lights Standard Compressor Controls Compressor discharge temperature Compressor start/run control High compressor discharge temp., engine shut-down Low compressor...

Excavator type Triple grouser Sealed, oil-flooded Number of rollers on each side 11 Upper track chain support Three (3) carrier rollers Rock guards Standard full-length guards Overall length (variable with adjustment) Final drive Independent hydrostatic Drive horsepower per track Spring set, hydraulic release Brake release Gradeability mast down Rear axle Three-point oscillating type Track adjustment means Hydraulic with grease gun Track drive disconnect Standard (manual) Mainframe, Decks & Walkways Main rails vertical plates, and internal stiffeners - made of ASTM design, sculpted to reduce...

Drill Table and Work Deck Table height off ground Deck floor material Ry-grip non-slip floor plate Drill deck length Drill deck width Hand rails high (1.9 in x 48 in) steel tube Wide walkways Viewing hatch In the drill deck; hydraulically Dust curtain Dust Reflector Directly below table bushing Natural rubber seal, with hinged retainer Hydraulic System Left Track/Rotation Pump (Closed-Loop) Axial piston, variable Right Track/Feed Pump (Closed-Loop) Axial piston, variable Accessory Circuit Pump (Open-Loop)_ Axial piston, variable Fan Circuit Pumps for Split Coolers (2) Double gear 264 L/min (65...

Accessories, Tools & Handling Equipment Drill Pipe (optional) Wall thickness Wall thickness Bottom thread Wall thickness Bottom thread Table Bushing Roller deck bushing Deck Wrench Wrench plate Wrench positioning Impact means Customer specifications, 20 m mast (2 each on starter Depends on pipe size Depends on pipe diameter Depends on pipe diameter Depends on pipe diameter Depends on pipe diameter Depends on pipe diameter Drill deck Hydraulic cylinder HOBO Wrench Wrench type Pipe rack (inside the mast) Typical configuration: Cable size Safety hook Auto shut-off Dust Collection Lower left, outside...

Rotary Blasthole Drill—MD6540 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. AEHQ6543