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MD6640

Rotary Drills

The Cat® MD6640 Rotary Drill is the only electric-drive drill in the Cat family but it shares the same characteristics of performance, reliability and durability with the rest of the drills in the Cat lineup. Ideal for harsh environmental conditions, the MD6640’s industry-leading durability is driven by its excavator-style undercarriage. Thanks to rebuildable components, superior structure and easy serviceability, the MD6640 delivers long life. And it’s built for operators, with a number of features that enhance productivity and reduce fatigue. Designed to drill holes from 244-406 mm (9.6-16 in) in diameter, the MD6640 is is optimized for single-pass or multi-pass drilling in both rotary and down-the-hole drilling modes.

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Bit Load up to 64 000 kg (up to 141,096 lb)
Hole Diameter 244 - 406 mm (9.6 - 16 in)
Engine AC Induction Motor - Dual Shaft 522-746 kW (600 hp)
Working Weight 154000 kg
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MD6640
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OVERVIEW

Proven Performance. Superior Longevity

FEATURES & BENEFITS

WORLD-CLASS OPERATOR STATION

Spacious cab mounted on pads to isolate it from vibrationHigh visibility, including overhead sky viewCat ultra-class ergonomic six-way adjustable seat with mechanical swi... Read more

MACHINERY HOUSE DESIGNED FOR EASY MAINTENANCE

Self-cleaning filter and pressurizing unit provide a pressurized, air-cooled environment for machinery and electrical systemsThree removable roof hatches facilitate easy... Read more

100% CAT INTEGRATION

Cat to the core, with common parts and components and consistent design characteristics across all Cat drill modelsShared software for autonomous featuresBacked by the wo... Read more

CAT 390 EXCAVATOR-STYLE UNDERCARRIAGE

Minimizes downtime and reduces owning and operating costs32% more drawbar pull, increasing the machine’s steering performancePositive Pin Retention (PPR) system eliminate... Read more

PERFORMANCE-ENHANCING MAST

Square tubular members, welded in a lattice configuration, reduce stress concentrations at weldsTorsion box reinforcements at every 1.5 meters (5 feet) increase mast rigi... Read more

FIT FOR HARSH ENVIRONMENTAL CONDITIONS

Cold and hot weather packages equip the drill for operation at temperatures ranging from -40°C to 50°C (-40°F to 122°F)Operates at altitudes up to 3048 m (10,000 ft) with... Read more

SAFETY

Hydraulic operated bit basket for bit changing without having to work under a suspended loadThree access and egress points on deck areas and main accessSeven engine shutd... Read more

SPECIFICATIONS FOR MD6640

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Specifications
Bit Load up to 64 000 kg (up to 141,096 lb)
Hole Diameter 244 - 406 mm (9.6 - 16 in)
Engine AC Induction Motor - Dual Shaft 522-746 kW (600 hp)
Working Weight 154000 kg
Multi-Pass Hole Depth Up to 85.3 m (280 ft)
Single Pass Hole Depth 18.3 - 21.3 m (60 - 70 ft)
Leveling Jacks
Location (2) positioned outside mast at rear and (2) positioned outside frame at front
Pad Diameter - Non-Drill End 229 mm
Stroke - Drill End 1676 mm
Stroke - Non-Drill End 1676 mm
Number 4
Pad Diameter - Drill End 229 mm
Undercarriage
Gradeability 42%
Type Cat 390 Excavator Style
Triple Grousers (2) 900 mm (35.43 in); for soft ground; 120 kPa (17.4 psi) ground bearing pressure
Triple Grousers (1) 750 mm (29.53 in); for hard ground; 140 kPa (20.3 psi) ground bearing pressure
Operating Environment
Minimum Ambient Rating - Standard 40 °C
Maximum Ambient Rating - Standard 50 °C
Mast Configuration - 10, 13, or 16 Meters
Angle Drilling 25° off vertical in 5° increments (with optional angle hole equipment)
Accessories, Tools and Handling Equipment
Winch System - Rating 5443 kg
Weights
Working Weight 172365 kg

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MD6200

Bit Load Up to 16 964 kg (37,400 lb)
Hole Diameter 140-200 mm (5.5-7.87 in)
Engine Cat© C18
U.S. EPA Tier 2 Equivalent - Engine C18 @ 1,800 rpm
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MD6380

Bit Load Up to 53 845 kg (118,719 lb)
Hole Diameter 251-381 mm (9.875-15 in)
Engine Cat® 3512C @ 1,800 rpm
Power Rating (ISO 14396) 949 kW
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MD6310

Bit Load Up to 42 149 kg (Up to 92,922 lb)
Hole Diameter 203-311 mm (8-12.25 in)
Engine C32B® @ 1,800 rpm
Body Length - Standard Cab 13.27 m
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MD6250

Bit Load Up to 32 655 kg (Up to 71,993 lb)
Hole Diameter 165-200 mm (6.5-9.88 in)
Engine C27 @ 1,800 rpm
Components (1) Dual starter motors
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