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MD6240


  • MD6240 - Rotary Drills
  • MD6240 - Rotary Drills
  • MD6240 - Rotary Drills
  • MD6240 - Rotary Drills
  • MD6240 - Rotary Drills

MD6240

High productivity and low cost of ownership is yours with the MD6240 Rotary Drill. With bit load force of 24 000 kg (52,911 lb) and the capability to drill depths up to 55.47 m (182 ft) the MD6240 is well equipped to drill in hard or soft rock applications. Built to be reliable, safe and easy to service for years to come.

Bit Load
24 000 kg (52,911 lb)
Hole Diameter
152-244 mm (6-9.625 in)
Engine
C27 (Tier 2) – 597 kW (800 hp) at 2,100 rpm
Compressor
48 m³/min (1,700 ft³/min) 6.9 bar (100 psi)

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Related Materials
File Format Size
MD6240 Product Brochure pdf 2.31 MiB
"Rotary Drills Product Line Brochure " pdf 555.98 KiB
Cat MD6240 - Hole Diameter 152-244 mm (6-9.625 in) - Key Features Sheet pdf 130.11 KiB

FEATURES & BENEFITS

To withstand your harsh quarry and mining environments

Best built for long life, the MD6240 has heavy-duty structures. The mast, integral A-frame, and mainframe are durable providing a strong platform needed for drilling in harsh conditions. The MD6240 is equipped to perform in challenging environments and provides high availability, positively impacting your bottom line. All welded structures comply with AWS 14.3 welding standard. The welded structures are inspected after the manufacturing process providing reliable, maintenance free and long lasting platform for the drill.

Sturdy Mast

The mast is made of heavy-duty ASTM A500 Grade B steel tubing on all four chords and cross members, which creates a torsionally strong mast structure and reduces the material fatigue. All mast structures are designed with double-cut lacing in high stress areas to prevent cracking and assure long life. The mast can be raised or lowered with full pipe rack and full drill string on the rotary head, in less than 40 seconds.

Heavy-Duty Frame

The A-frame is an integral extension of the mainframe, providing a strong, low maintenance design. The mainframe design assures structural integrity. The main rails, made of ASTM A500, Grade B, rectangular steel tubing, are heavily cross-braced and reinforced in high stress areas.

Undercarriage

Three point oscillating suspension allows the drill to negotiate rugged, uneven terrain without transferring excessive torsional forces to the mainframe, and allows continued stability while tramming between holes.Tram speed is 2.0 km/h (1.25 mph). Gradeability is 48% with the mast down.Ground clearance: 610 mm (24 in)Bearing ground pressure: 0.83 bar (12 psi)

High on efficiency; low on cost

To achieve low cost, high efficiency drilling, your power group configuration is selected to match the needs of your specific geology and site conditions. We have numerous configurations for low pressure rotary drilling or high pressure DTH hammer drilling. Power groups are arranged in-line for easy access, from both sides, to the engine, compressor, hydraulic pumps, plumbing and other components, which translates into safer serviceability and lower maintenance cost.

Engines

To match your application demands, MD6240 has three choices for engine sizes. Cat C27 ACERT™ @ 597 and 652 kW (800 and 875 hp) @ 2,100 rpm. Each package includes:Fuel-filtration package to overcome harsh mining environmentsPre-lube system for extra engine protectionDry type inlet air cleaner with safety elementsHeavy duty muffler and muffler guardManifold blanket coversSet of batteriesCoolant conditionerFuel tank

Compressor

For efficient flushing of cuttings and dust out of the bore hole, the air compressor delivers the right amount of bailing air based on hole diameter, depth and material density. Air-on-demand control system regulates air intake to match the amount of compressed air being used.

Standard Compressor is Low Pressure for Rotary Drilling Mode

Single stage, positive displacement, oil-flooded, single-stage screw type compressor Discharge air flow (sea level) 48 m3/min (1,700 ft3/min) Maximum operating pressure 6.9 bar (100 psi)

Optional Compressor is High Pressure for DTH Hammer Drilling Mode

High pressure, oil-flooded, two-stage screw type Discharge air flow (sea level) 33 m3/min (1,150 ft3/min); 38 m3/min (1,350 ft3/min); 43 m3/min (1,500 ft3/min) Maximum operating pressure 10.3/24.1/34.5 bar (150/350/500 psi)

Cooler

For ample capability, our cooler systems are designed to assure unrestricted airflow and reduce excessive operating heat, which extends life of engine, compressor, and hydraulic components. Rated up to 52° C (125° F) ambient cooling capacity Split cooler Engine radiator Charge air cooler section Hydraulic oil cooler section Compressor oil section Replaceable cores Fan arrangements are suited to the powertrain configuration Mounted on an isolated skid to reduce vibration, limit load transfer and noise

Hydraulic System

The pump drive is powered by direct input from the engine using a maintenance free rubber mounted coupling. The result is a longer power train life as less shock is absorbed. The coupling housing is fully enclosed with a hinged access hatch for visual inspection.

Hydraulic Pump Drive

Two axial piston pumps for the pulldown and rotation systems or track propel functions. One axial piston pump for the cooling fans and auxiliary functions. Two gear pumps supply power to the dust collector and water injection systems.

Strong and sturdy

To assure long life, all mast structures are designed with double-cut lacing in high stress areas. There are several application-specific masts to choose from.

Pulldown and Hoist

A single, double-acting cylinder, cable pull-down system produces 22 680 kg (50,000 lb) of pull-down force and 22 680 kg (50,000 lb) of hoist force. The cylinder rod is fixed on both ends with a moving barrel, providing high efficiency and reducing feed system wear and maintenance.One variable displacement axial piston pump in an open loop systemBit load up to 24 000 kg (52,911 lb)Feed and hoist speed 0-39 m/min (0-129 ft/min)Weight on bit feed hold back control system

Cables

The MD6240 drill is designed with mast cables instead of chains. Cables have a predictable wear profile and do not unexpectedly fail. They can be repaired quickly and easily, and they absorb and evenly dissipate vibrations, which promotes longer mast life.

Auto Tensioning

A cable auto-tensioner ensures maximum cable service life with minimum maintenance by automatically keeping cables tight via a series of hydraulic cylinders applying constant pressure. Cables for the MD6420 are 2.85 cm (1 in) in diameter, and rated at 62.8 tons (138,450 lb) nominal strength.

Rotary Drill Head (1)

Achieve optimal penetration rates with the ability to select the most suitable rotation speed for your application. One fixed displacement, axial piston motor provides 139 kW (186 hp) with rotation speed 0-220 rpm. Torque reaches 13 015 N∙m (9,600 lbf-ft) with variable control. Heavy-duty, reliable drill head includes a 140 mm (5.5 in) bull-shaft connection to the drill string and has adjustable steel guides with replaceable pads for even travel on main chords. The long head carriage design ensures the rotary head rides the main chords evenly.

Angle Drilling

The MD6240 can drill in angles up to 25 degrees (in 5 degree increments). Dual mast locks are located above the deck and hydraulically operated dust curtains are available for angle drilling.

Pipe Rack Carousel (2)

The hydraulically operated carousel-type pipe changer is located outside of the mast structure, and all functions are controlled from a console in operator’s cab, which assures efficient and safe drill string changes and storage. The carousel provides automatic indexing of drill pipes in relation to the rotary head. Pipe diameter 114-178 mm (4.5-7.0 in) 12 m (39 ft) mast arrangement 4 pods; 10.67 m (35 ft) long pipe 15 m (49 ft) mast arrangement 2 pods; 15.24 m (50 ft)/two 7.62 m (25 ft) long pipe

Pipe Positioner

To help you align the pipe string while adding or detaching pipes, or in angle hole drilling, our automatic pipe positioner, hydraulically activates to guide the pipe straight through the deck bushing.

Hammer/Tricone Pipe Rack

To accommodate differences in rock consistency, a patented Hammer/Tricone Pipe Rack allows for rapid conversion between tricone drilling for soft drilling conditions, and DTH drilling, for hard rock, in less than five minutes.

Hydraulically Operated Break Out and Deck Wrench (3)

Adding to your productivity the HOBO works in concert with a highly effective deck wrench. Mounted on the outside mast structure Four-cylinder system for swing-adjust-rotate-clamp Operated from inside the cab

Overhead Winch

To assist in safe and efficient handling of drill pipes, bits, subs and other heavy accessories, there is an auxiliary winch system with capacity to hoist up to 1587 kg (3,500 lb) capacity. Operation is from the operator’s cab, or optional remote control.

Largest chamber in the industry

For efficient dust collection MD6240 has a dust collector rated at 127 m3/min (4,500 ft3/min) and separate water injection system. Both dry and water injection systems can be mounted on the same drill.Water injection system options: – Three tanks totaling 1271 L (336 gal) mounted under the front deck or – One tank 1514 L (400 gal) mounted on top-deck (mounted in place of Dry Dust Collector)

Dust Curtain

With the largest dust chamber in the industry, the MD6240 has a total enclosed area of 4.17 m2 (44.89 ft2) and is surrounded by heavy rubber curtains. This provides ample space for dust containment while deep hole drilling and the resulting cutting piles. Optional hydraulic front and rear dust curtain lifters are available to ensure cuttings are not pulled back into the hole while tramming from point to point on the blast pattern.Material 6 mm (0.25 in) rubber nylon reinforcedSplit for excess with 305 mm (12 in) overlapDust deflector is a natural rubber seal, 13 mm (0.5 in) thick, 356 mm (14 in) diameter

For operator safety and comfort

Safe and Effortless Operation

To limit operator fatigue the MD6240 controls are ergonomic. The FOPS certified cab has tinted safety glass windows and a closed circuit camera system for 360° visibility. Two heavy-duty doors provide quick egress to the drill table or the main deck.

Additional Safety Features

45° control console, in relation to deck, assures good overview of drill table Closed-circuit camera system Two heavy-duty swing doors for convenient cab access Low sound and vibration levels Emergency ingress/egress Multiple engine stops Four leveling jacks ensure a minimum of three machine points of ground contact at all times The pipe handling system is designed so breaker plate is located at operator’s eye level All auxiliary functions are controlled by fingertip toggle switches and marked with “no language barrier” symbols describing each function Fixed folding trainers seat Window washers and wipers

Spacious and Quiet Cab

For comfortable and efficient operation, the MD6240 cab offers operators 3 m2 (32 ft2) of floor area allowing ample room with a swiveling operator’s seat equipped with armrests and a headrest. The ergonomic console provides well organized controls labeled with international ISO symbols for each function. The cab is shock mounted and insulated for quiet operation below 80 dB(A). Heated and air conditioned, operator comfort is attainable in all climates.

Easy and safe to access all service points

Supported by World-class Cat Dealer Network

With the support of the Cat global dealer network, you can rely on unmatched service, integrated solutions, after-sales support, fast and efficient parts fulfillment, and world-class remanufacturing capabilities. The Cat Parts and Service Network offers you the most comprehensive product support system in the industry. Everything we do is designed to keep you up and running longer, for less. Cat authorized and certified mechanics are trained in the latest diagnostic equipment, tools and service techniques. They know exactly what to look for, and exactly how to fix it. One of the prime cornerstones of the Cat Parts and Service Network is availability. No matter where you are, no matter what day of the week or time of day, Cat Parts and Service is never far away. At each location, you have instant access to everything from information on maintenance options, engine selection and repair, to a full range of genuine Cat Parts and Remanufactured components. The fact is, a vast majority of the parts you'll ever need are on hand at your local dealer, right off the shelf. And in the rare event a specific part is not on hand, your dealer can usually get it to you within 24 hours, utilizing our computerized parts location network. From helping you choose the right machine to knowledgeable ongoing support, Cat dealers provide the best in sales and service. Preventive maintenance programs and guaranteed maintenance contracts Best-in-class parts availability Operator training to help boost your production Genuine Cat Remanufactured parts

Large Main Deck

The MD6240 large deck (front and rear) plus wide walkways assure a safe operating area and more efficient maintenance. Access to walkways are on both sides of drill for quick access to all major components for daily pre-start checks, preventive maintenance and adjustments. The stationary drill table/rear deck (mast/cab area) provides access to the mast area and to the main deck during all drilling modes, including angle drilling. Immediate access to the power group including the engine, compressor, hydraulic pumps, plumbing and other components, translates into better serviceability and lower maintenance cost.

Because it’s your priority

We know keeping operators safe is a priority. Throughout Cat Drills you will find features that are designed to do just that.Operators are comfortable, more productive and safe in our spacious and quiet cabCab is FOPS certified with tinted safety glass windows and a closed circuit camera system for 360° visibilityThe Carousel Pipe Rack is controlled from inside of operator’s cabA hydraulic break out wrench and deck wrench assist in breaking thread connections from inside the cabThree point oscillating suspension allows the drill to negotiate rugged, uneven terrain without transferring excessive torsional forces to the mainframe, and allows continued stability while tramming between holesPower groups are arranged in-line for easy access, from both sides, to the engine, compressor, hydraulic pumps, plumbing and other components, which translates into safer serviceabilityMast uses cables which have a predictable wear profile and do not unexpectedly fail like chainsAn auxiliary winch system for up to 1587 kg (3,500 lb) capacity, assists in handling of drill pipes, bits, subs and other heavy accessories and equipment from the cab or via remote controlTwo heavy-duty doors provide quick ingress/egress from cab to the drill table or the main deckGround-level machine isolation and lock out boxMultiple engine stopsFour leveling jacks ensure a minimum of three machine points of ground contact at all times

Using resources wisely

Sustainable development for Caterpillar means leveraging technology and innovation to increase efficiency and productivity with less impact on the environment and helping you do the same - enabling your businesses to become more productive by providing products, services and solutions that use resources more efficiently.

Engines with Advanced Technology

Cat ACERT engines with advanced technology have lower emissions without compromising performance or fuel efficiency.

Extended Life

Mast structure is designed for long life and is a base for major overhauling and continued use after standard operational life. Jack casing structures, A-frame/mast pivot and the deck are integrally welded to the mainframe assuring a sound structural base with the ability to be rebuilt.

Sustainability Features

Fuel savings is achieved with our variable speed fans that match cooling demand. The coolers have replaceable cores. The pump drive is powered by direct input from the engine using a maintenance free rubber mounted coupling. The result is a longer power train life as less shock is absorbed.

SPECIFICATION

Standard Equipment
Bit Load 24 000 kg (52,911 lb)
Hole Diameter 152-244 mm (6-9.625 in)
Engine C27 (Tier 2) – 597 kW (800 hp) at 2,100 rpm
Compressor 48 m³/min (1,700 ft³/min) 6.9 bar (100 psi)
Engine Cat® C27 Tier 2 597 kW (800 hp) at 2,100 rpm
Hole Depth Single-pass (12 m/39 ft mast) Up to 12.80 m (42 ft)/Multi-pass Up to 55.47 m (182 ft)
Hole Depth Single-pass (15 m/49 ft mast) Up to 15.85 m (52 ft)/Multi-pass Up to 31.08 m (102 ft)
Standard Equipment
Horsepower capacity 135 kW
Torque 0-13 015 N·m (0-9,600 ft-lb)
Standard Equipment
Rated horsepower 597 kW
Fuel tank 2986 L
Manufacturer Caterpillar
Model C27 Tier 2
Optional rated horsepower 652 kW
Standard Equipment
Lift capacity 290 kN
Number 4
Pad diameter 610 mm
Standard Equipment
Discharge air flow (sea level) 33 m3/min (1,150 ft3/min); 38 m3/min (1,350 ft3/min); 43 m3/min (1,500 ft3/min)
Maximum operating pressure 10.3/24.1 bar or 10.3/24.1/34.5 bar (150/350 psi or 150/350/500 psi)
Type (high pressure) Oil-flooded, two-stage screw
Standard Equipment
Jacks, mast pivot and deck Welded integrally to mainframe
Machine deck Access both sides
Standard Equipment
Bit/hole diameter 152-244 mm (6-9.625 in)
Depth multi-pass (12 m/39 ft mast) Up to 55.47 m (Up to 182 ft)
Depth single-pass (15 m/49 ft mast) Up to 15.85 m (Up to 52 ft)
Standard Equipment
Cold weather option -40.0 ° C
Maximum ambient rating (standard) 52.0 ° C
Minimum ambient rating (standard) -1 ° C
Standard Equipment
Dust collector capacity 127 m3/min
Note Both dry and water injection can be mounted on the same drill
Standard Equipment
12 m (39 ft) mast arrangement 4 pods; 10.67 m (35 ft) long pipe
15 m (49 ft) mast arrangement 2 pods; 7.62 m (25 ft) long pipe
Type Carousel, with stationary pods and breaker plates
Standard Equipment
Climate control Wall-mounted, AC/heating/pressurizing unit
Floor area 3.0 m2
Height inside 1943.0 mm
Number of doors 2 with windows (included 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) 6.0 mm
Standard Equipment
Table height off ground 1321.0 mm
Standard Equipment
Automatic cable Hydraulic cylinder, tensioning
Cable type 25 mm (1 in) DYFORM 8
Drilling feed/retract rate 0-39.3 m/min (0-129 ft/min)
Head travel (12 m/39 ft) 14.54 m
Head travel (15 m/49 ft) 17.60 m
Rated hoist capacity Up to 222 kN (Up to 50,000 lbf)
Rated pull-down capacity Up to 222 kN (Up to 50,000 lbf)
Standard Equipment
Brakes Spring set, hydraulic release
Front axle Three-point oscillating type
Gradeability mast down 48%/25.6 degrees
Maximum drive horsepower per track 152.0 kW
Number of lower rollers 12
Rock guards/chain guides Standard full-length guards
Tram speed maximum 2.0 km/h
Standard Equipment
Cable size 13.0 mm
Capacity 1587 kg
Standard Equipment
Discharge air flow (sea level) 48 m3/min
Maximum operating pressure 6.9 bar
Type Oil-flooded, single-stage screw
Standard Equipment
Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Diameter (customer specification) 114-178 mm (4.5-7.0 in)
Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Wall thickness 19 mm
Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Length 10.67 m
Drill Pipe (Optional, Price-Adder) – 12 m (39 ft) mast arrangement: Threads Depends on pipe diameter
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Diameter (customer specification) 114-178 mm (4.5-7.0 in)
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Wall thickness 19 mm
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Length 7.62 m
Drill Pipe (Optional, Price-Adder) – 15 m (49 ft) mast arrangement: Threads 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
Top Adapter Sub – Bottom thread Depends on pipe diameter
Bit Sub – Table bushing One (1) piece insert, roller deck bushing or two-piece