MD6640 Rotary Drill

MD6640 Rotary Drill

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

Hole Diameter244 - 406 mm (9.6 - 16 in)

EngineAC Induction Motor - Dual Shaft 522-746 kW (600 hp)

Working Weight339512lb

Multi-Pass Hole DepthUp to 85.3 m (280 ft)

Single Pass Hole Depth18.3 - 21.3 m (60 - 70 ft)

Location(2) positioned outside mast at rear and (2) positioned outside frame at front

Pad Diameter - Non-Drill End9in

Stroke - Drill End66in

Stroke - Non-Drill End66in

Number4

Pad Diameter - Drill End9in

Gradeability42%

TypeCat 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

Minimum Ambient Rating - Standard-40°F

Maximum Ambient Rating - Standard122°F

Angle Drilling25° off vertical in 5° increments (with optional angle hole equipment)

Winch System - Rating12000lb

Working Weight380000lb

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