MD6640 Rotary Drill

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.

Key Specs

  • 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)

Benefits

Proven Longevity

Durable excavator-style undercarriage, high-strength steel mainframe and mast members

Lower Lifetime Cost per Ton

Rebuildable components, long structural lifetime design and high degree of serviceability

Reduced Maintenance

Rack and pinion system driven by excavator-grade DC motors

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)

Mast

Single Pass Hole Depth Down To 70ft
Multi-Pass Hole Depth Down To 140ft
Features (1) 0°-25° in 5° increments (with optional angle hole equipment)

Leveling Jacks

Number 4
Location 2 positioned on drill end; 2 on non-drill end
Pad Diameter 44in
Stroke - Drill End 66in
Stroke - Non-Drill End 66in

Undercarriage

Type Cat 395 Excavator Style

Operating Environment

Minimum Ambient Rating - Standard -40°F
Maximum Ambient Rating - Standard 122°F

Accessories, Tools and Handling Equipment

Winch System - Rating 12000lb

Weights

Working Weight 380000lb

WORLD-CLASS OPERATOR STATION

  • Spacious cab mounted on pads to isolate it from vibration
  • High visibility, including closed circuit camera system
  • Cat ultra-class ergonomic six-way adjustable seat with mechanical swing suspension and footrest

MACHINERY HOUSE DESIGNED FOR EASY MAINTENANCE

  • Pressurized machinery house keeps dust out while helping cool major components
  • Three removable roof hatches facilitate easy exchange of major components
  • Interior and exterior lights

CAT 395 EXCAVATOR-STYLE UNDERCARRIAGE

  • Minimizes downtime and reduces owning and operating costs
  • 32% more drawbar pull, increasing the machine’s steering performance
  • Positive Pin Retention (PPR) system eliminates pin walking

PERFORMANCE-ENHANCING MAST

  • Square tubular members, welded in a lattice configuration, reduce stress concentrations at welds
  • Torsion box reinforcements at every 1.5 meters (5 feet) increase mast rigidity, especially for hard rock drilling and angle hole applications

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 5200 m (17,060 ft) with 108 m3/min (3,800 ft3 /min) compressor

SAFETY

  • Three access and egress points on deck areas and main access
  • Automatic, audible tram alarms

Standard Equipment

Optional Equipment