631 - Tier 2

631 - Tier 2
Caterpillar
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Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.
Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

Brochures and Spec Sheets

Gallery

631 - Tier 2 631 - Tier 2 631 - Tier 2

Specifications

Specification Value Unit
Emissions
Engine Model - Tractor
Rated Engine RPM - Tractor 1900 r/min
Flywheel Power - Tractor 570 hp
Overall Width 12.93 ft
Overall Shipping Height 12.75 ft
Scraper Capacity - Struck 24 yd³
Scraper Capacity - Heaped 34 yd³
Rated Load
Width - Cut 11.50 ft
Maximum Depth of Cut 17.7 in
Maximum Depth of Spread 21.1 in
Top Speed - Loaded 34.7 mile/h
180° Curb-to-Curb Turning Width 40.12 ft
Tires - Tractor
Tires - Scraper
Flywheel Power - Tractor/Scraper 570 hp
Scraper Capacity - Heaped 34 yd³
Top Speed - Loaded 34.7 mile/h
Transmission Gear - First 3.4 mile/h
Transmission Gear - Second 6.2 mile/h
Transmission Gear - Third 7.7 mile/h
Transmission Gear - Fourth 10.5 mile/h
Transmission Gear - Fifth 14.1 mile/h
Transmission Gear - Sixth 19.0 mile/h
Transmission Gear - Seventh 25.7 mile/h
Transmission Gear - Eighth 34.7 mile/h
Transmission Gear - Reverse 6.2 mile/h
Real Wheels (Each) 2.37 gal (US)
Crankcase - Tractor 13.7 gal (US)
Transmission System 29 gal (US)
Cooling System 18.75 gal (US)
Fuel Tank 231 gal (US)
Hydraulic System 37.5 gal (US)
Diesel Exhaust Fluid (DEF) 8 gal(US)/d
Windshield Washer Reservoir 1.3 gal (US)
Differential 40.41 gal (US)
Final Drive - Each 8.71 gal (US)
Width - Overall Machine 155 in
Width - Overall Machine - Ladder Down 159.3 in
Width - Tractor 144.2 in
Width - Rear Tire Centers 96.9 in
Width - Inside of Bowl 134 in
Width - Outside Bowl - Shipping Width 143.1 in
Height - Overall Shipping 153.2 in
Height - Top of Cab 149.8 in
Front of Tractor to Front Axle 142.0 in
Ground Clearance - Tractor 26.1 in
Axle to Vertical Hitch Pin 20 in
Height - Scraper Blade Maximum 20 in
Wheel Base 346.8 in
Length - Overall Machine - Standard 597 in
Length - Maximum (Push-Pull) 655.1 in
Rear Axle - Rear of Machine 108 in
Operating Weight - Empty 102750 lb
Overall Length 49.34 ft
Overall Length - With Bail Down 54.59 ft
Operating Weight - Empty 106430 lb
Exterior Sound Level
ROPS/FOPS
Steering System
Falling Object Protective Structure (FOPS)
Rollover Protection Structure (ROPS)
Seat Belt
Reverse Alarm
Brakes
Bowl Raise 3.5 s
Bowl Lower 3.5 s
Apron Raise 4.0 s
Apron Lower 3.8 s
Ejector Extend 8.5 s
Ejector Retract 8.5 s
Bail Raise 1.5 s
Bail Lower 2.1 s
Width - Outside Rear Tires 143.2 in
Fuel Tank Refill Capacity - Scraper 231 gal (US)

Standard Equipment

  • NOTE
  • POWER TRAIN – TRACTOR
  • POWER TRAIN – SCRAPER
  • ELECTRICAL – TRACTOR
  • ELECTRICAL – SCRAPER
  • OPERATOR ENVIRONMENT – TRACTOR
  • FLUIDS
  • OTHER STANDARD EQUIPMENT – TRACTOR
  • OTHER STANDARD EQUIPMENT – SCRAPER

Optional Equipment

  • NOTE
  • STEERING ARRANGEMENTS
  • INTEGRATED TECHNOLOGIES
  • OTHER ATTACHMENTS
  • SERVICE INSTRUCTIONS