US
Metric

Overview

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.

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)
Multi-Pass Hole Depth
Up to 85.3 m (280 ft)
Single Pass Hole Depth
21,3 m (70 ft)
Working Weight
339512.00 lb
154000.00 null
Bit Load
up to 64 000 kg (up to 141,096 lb)

Undercarriage

Type
Cat 395 Excavator Style

Mast

Single Pass Hole Depth Down To
70.00 ft
21.30 m
Multi-Pass Hole Depth Down To
140.00 ft
42.70 m

Leveling Jacks

Number
4
Location
2 positioned on drill end; 2 on non-drill end
Pad Diameter
44.00 in
1118.00 mm
Stroke - Drill End
66.00 in
1676.00 mm
Stroke - Non-Drill End
66.00 in
1676.00 mm

Mast

Features (1)
0°-25° in 5° increments (with optional angle hole equipment)

Operating Environment

Minimum Ambient Rating - Standard
-40.00 °F
-40.00 °C
Maximum Ambient Rating - Standard
122.00 °F
50.00 °C

Accessories, Tools and Handling Equipment

Winch System - Rating
12000.00 lb
5443.00 kg

Weights

Working Weight
380000.00 lb
172365.00 kg
Features

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
Sales Features

Machine Service & Support

Caterpillar factory-trained service engineers are available throughout the world to provide our customers with the support necessary for meeting their production requirements.

Customized Training

Caterpillar provides customized on-site and/or classroom training for rotary drill operators and mine operation supervisors with the goal of developing internal training competency for the customer. The comprehensive training package is designed in module form to target key production issues specific to a given customer’s operation.

Safety

Our goal is to provide a safe workplace while producing products that exceed the needs of our customers and shareholders. As a responsible corporate citizen, we commit to the safe manufacture, installation and operation of our products.