CME-850XR Rubber Track
Drill Specifications

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CME-850XR Brochure      CME Product Catalog

Engine

• Cummins QSB 6.7L (408 cubic inch) 6 cylinder turbocharged and charge air cooled diesel engine. U.S. EPA Tier 4 final emissions certified diesel engine with cold weather starting aid and engine protection shutdown systems.
  • Rated horsepower
    • Driving: 195 horsepower (145 kilowatt) @ 2,300 rpm
    • Drilling: 117 horsepower (87 kilowatt) @ 2,300 rpm

Carrier

• Track width
  • 27 in (68.58 cm)
• Tractive force
  • 44,525 lbs. (20,196 kg)
• Avg. ground bearing pressure
  • 3.9 psi (.274 kg/cm²)
• Zero turning radius

• Track drive
  • Hydrostatic closed-loop transmissions consisting of variable displacement piston pump, two-speed bent-axis piston motor, and double reduction planetary wheel drive.
• Hydraulic front winch
  • 20,000 lbs (9,072 kg) with two-speed motor
• Tool storage
  • Auger rack in front
  • Auger rack on deck, driller side
  • Rod rack on deck, helper side
  • Tool box on deck, helper side

Speed

• Low Range: 2.4 mph (3.86 kph)
• High Range: 5.0 mph (8.04 kph)

Gradeability

• Straight ahead climb
  • 60% grade
• Side-hill traverse
  • 40% grade

Rotary drive

• Transmission
  • 5 speed forward, 1 speed reverse
• Standard rotary drive
  • 14,465 foot pounds (19,612 Nm)
  • 663 rpm
• High speed rotary drive
  • 11,575 foot pounds (15,694 Nm)
  • 830 rpm
• Hollow spindle
  • Standard 2-3/4 inch I.D. (7 cm)
  • Optional 3-3/4 inch I.D. (9.5 cm)

Hydraulic feed system

• Retract force
  • 28,275 pounds (12,825 kg)
• Pulldown force
  • 18,650 pounds (8,460 kg)
• Retract rate
  • 35 feet (10.7 m) per minute
• Rapid retract rate
  • 90 feet (27 m) per minute
• Feed rate
  • 55 feet (17 m) per minute
• Stroke
  • 72 inch (183 cm)
• Mast
  • 26 feet (7.9 m) from ground to sheaves

Leveling system

• Hydraulic jacks, inverted design with chrome-plated piston rods enclosed at all times.
  • Stroke: 36 inch (91.4 cm)

850XR Features  |  850XR Specifications  |  850XR Optional Equipment

Performance ratings are based on engineering specifications, calculations and accepted industry standards.
Capacities may vary according to drilling conditions. CME reserves the right to amend these specifications at any time, without notice.