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Rotary Drills

MD6640 Rotary Drill

Bit Load

up to 64 000 kg (up to 141,096 lb)

Hole Diameter

270 - 406 mm (10.625 - 16 in)

Engine

AC Induction Motor - Dual Shaft 597 kW (800 hp)
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    SPECIFICATIONS

    The Cat® MD6640 Rotary Blasthole 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 structures and easy serviceability, the MD6640 delivers proven performance and long life. And it’s built for operators, with a number of features that enhance productivity and reduce fatigue. Designed to drill holes from 270-406 mm (10.625 -16 in) in diameter, the MD6640 is optimized for single-pass or multi-pass drilling for large borehole applications in hard rock.

    Detailed Equipment Specifications

    Accessories, Tools and Handling Equipment

    Winch System - Rating

    12,000 lb

    Leveling Jacks

    Number

    4

    Pad Diameter - Non-Drill End

    9 in

    Location

    2 positioned on drill end; 2 on non-drill end

    Pad Diameter - Drill End

    9 in

    Stroke - Drill End

    66 in

    Stroke - Non-Drill End

    66 in

    Pad Diameter

    44 in

    Mast

    Single Pass Hole Depth Down To

    70 ft

    Multi-Pass Hole Depth Down To

    140 ft

    Features (1)

    0°-25° in 5° increments (with optional angle hole equipment)

    Mast Configuration - 10, 13, or 16 Meters

    Angle Drilling

    25° off vertical in 5° increments (with optional angle hole equipment)

    Operating Environment

    Maximum Ambient Rating - Standard

    122 °F

    Minimum Ambient Rating - Standard

    -40 °F

    Specifications

    Bit Load

    up to 64 000 kg (up to 141,096 lb)

    Hole Diameter

    270 - 406 mm (10.625 - 16 in)

    Engine

    AC Induction Motor - Dual Shaft 597 kW (800 hp)

    Single Pass Hole Depth

    21,3 m (70 ft)

    Multi-Pass Hole Depth

    Up to 85.3 m (280 ft)

    Working Weight

    339,512 lb

    Undercarriage

    Triple Grousers (2)

    900 mm (35.43 in); for soft ground; 120 kPa (17.4 psi) ground bearing pressure

    Type

    Cat 395 Excavator Style

    Triple Grousers (1)

    750 mm (29.53 in); for hard ground; 140 kPa (20.3 psi) ground bearing pressure

    Gradeability

    42%

    Weights

    Working Weight

    380,000 lb

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