Financing & Insurance
See our Current Offers
View Product Downloads
Please answer to continue. Enter a valid email address.

Overview

Engine

Units:
Tractor Engine Cat® C18 ACERT™ Cat® C18 ACERT™ Less

Tractor Engine

Flywheel Power: Tractor/Scraper 373 kW (500 hp) 373 kW (500 hp) Less
Net Power 345/373 kW 462/500 hp 345/373 kW 462/500 hp Less
Gross Power - Gears 1-2 488.0 hp 364.0 kW Less
Gross Power - Gears 3-8 526.0 hp 392.0 kW Less
Net Power - Gears 1-2 462.0 hp 345.0 kW Less
Net Power - Gears 3-8 500.0 hp 373.0 kW Less
Bore 5.7 in 145.0 mm Less
Stroke 7.2 in 183.0 mm Less
Displacement 1105.0 in3 18.1 L Less

Scraper Bowl

Scraper Capacity: Heaped 34.0 yd3 26.0 m3 Less
Rated Load 82200.0 lb 37285.0 kg Less
Capacity Struck 24.0 yd3 18.3 m3 Less
Depth of Cut - max. 17.2 in 437.0 mm Less
Width of Cut, to Router Bits 138.3 in 3512.0 mm Less
Ground Clearance - max. 21.5 in 545.0 mm Less
Cutting Edge - thickness 1.12 in. 28.0 mm Less
Hyd. Penetration Force - 631G 57375.0 lb 255.0 kN Less
Depth of Spread - max. 18.9 in 480.0 mm Less
Apron Opening 79.0 in 2007.0 mm Less
Apron Closure Force 38250.0 lb 170.0 kN Less

Transmission

Top Speed (Loaded) 33.0 mph 53.5 km/h Less
1 Forward 2.9 mph 4.7 km/h Less
2 Forward 5.2 mph 8.4 km/h Less
3 Forward 7.4 mph 11.9 km/h Less
4 Forward 10.0 mph 16.1 km/h Less
5 Forward 13.4 mph 21.6 km/h Less
6 Forward 18.2 mph 29.3 km/h Less
7 Forward 24.5 mph 39.4 km/h Less
8 Forward 33.2 mph 53.5 km/h Less
Reverse 6.2 mph 9.9 km/h Less

Hydraulics

Bowl Cylinder Bore 7.2 in 184.0 mm Less
Bowl Cylinder Stroke 34.4 in 873.0 mm Less
Apron Cylinder Bore 8.2 in 210.0 mm Less
Apron Cylinder Stroke 28.6 in 727.0 mm Less
Ejector Cylinder Bore 8.2 in 210.0 mm Less
Ejector Cylinder Stroke 74.0 in 1880.0 mm Less
Steering Circuit 100.0 gal/min 379.0 L/min Less
Scraper Circuit 91.0 gal/min 344.0 L/min Less
Cushion Hitch Circuit 9.0 gal/min 34.5 L/min Less
Secondary Steering Circuit 100.0 gal/min 379.0 L/min Less
Relief Valve - Steering Circuit 1987.0 psi 13700.0 kPa Less
Relief Valve - Implement Circuit 2030.0 psi 14000.0 kPa Less
Compensator Setting - Cushion Hitch Circuit 2320.0 psi 16000.0 kPa Less

Steering

Width - 180° Turn 40.02 ft 12.2 m Less
Steering Angle – Right 90° 90° Less
Steering Angle – Left 85° 85° Less

Service Refill Capacities – Tractor

Crankcase 11.9 gal 45.0 L Less
Fuel Tank - 631G 215.04 gal 814.0 L Less
Transmission 29.0 gal 110.0 L Less
Differential 39.0 gal 148.0 L Less
Final Drive (per side) 6.1 gal 23.0 L Less
Cooling System 29.0 gal 110.0 L Less
Hydraulic Reservoir 50.2 gal 190.0 L Less
Wheel Coolant (each) 19.8 gal 75.0 L Less
Windshield Washer 1.5 gal 6.0 L Less

Service Refill Capacities – Scraper

Wheel Coolant (each) 19.8 gal 75.0 L Less

Dimensions

Width - overall machine 155.0 in 3938.0 mm Less
Width - tractor 137.0 in 3481.0 mm Less
Width - rear tire center lines 97.0 in 2464.0 mm Less
Width - inside of bowl 134.0 in 3405.0 mm Less
Width - outside rear tires 143.2 in 3636.0 mm Less
Height - overall shipping 168.8 in 4286.0 mm Less
Height - top of cab 146.3 in 3715.0 mm Less
Ground Clearance, Tractor 26.2 in 665.0 mm Less
Front of Tractor to Front Axle 132.2 in 3359.0 mm Less
Axle to Vertical Hitch Pin 21.6 in 548.0 mm Less
Height - scraper blade max. 21.5 in 545.0 mm Less
Wheelbase 345.2 in 8769.0 mm Less
Length - overall machine 573.4 in 14565.0 mm Less
Rear Axle to Rear of Machine 95.97 in 2437.0 mm Less

Weights - Standard, tandem

Total Shipping 100005.97 lb 45362.0 kg Less
Total Operating - empty 102459.71 lb 46475.0 kg Less
Front Axle 68647.46 lb 31138.0 kg Less
Rear Axle 33812.26 lb 15337.0 kg Less
Total Operating - loaded 184658.97 lb 83760.0 kg Less
Front Axle Weight - loaded 97869.7 lb 44393.0 kg Less
Rear Axle Weight - loaded 86789.28 lb 39367.0 kg Less

Weights

Operating Weight 102459.71 lb 46475.0 kg Less

Transmission - 631G

1 Forward 2.9 mph 4.7 km/h Less
2 Forward 5.2 mph 8.4 km/h Less
3 Forward 7.4 mph 11.9 km/h Less
4 Forward 10.0 mph 16.1 km/h Less
5 Forward 13.4 mph 21.6 km/h Less
6 Forward 18.2 mph 29.3 km/h Less
7 Forward 24.5 mph 39.4 km/h Less
8 Forward 33.2 mph 53.5 km/h Less
Reverse 6.2 mph 9.9 km/h Less

Power Train - Engine

A combination of innovations working at the point of combustion, ACERT™ technology optimizes engine performance while meeting regulations for off-road applications.


Power Train - Transmission

Integrated electronics allow the machine to monitor the entire power train, reducing component stress and providing a better ride.


Structures

Superior structural design and construction optimize performance and reliability.


Operator Station

State-of-the-art productivity and operator comfort.


Electronic Controls

Integrated electronic controls provide smooth, consistent shifts through the synchronization of engine and transmission speeds.


Scraper Bowl

Designed for optimum loading, material retention and ejection.


Serviceability

Count on Caterpillar for simplified service and the most productive uptime.


Customer Support

Cat dealer services help you operate longer with lower costs.


631G Standard Equipment

ELECTRICAL
  • Alarm, backup
  • Alternator, 75 amp
  • Batteries (4), 12V Maintenance Free, High Output
  • Electrical System, 24V
  • Lighting System
  • Starting Receptacle

OPERATOR ENVIRONMENT
  • Air Conditioner (includes heater and defroster)
  • Cigarette Lighter and Ashtray
  • Coat Hook
  • Diagnostic Connection Port (12V)
  • Dome Courtesy Light
  • Gauge Group
  • Horn
  • Implement Control Joystick
  • Rearview Mirrors
  • Radio Ready (two radio openings, speakers, and 5-amp converter)
  • ROPS Cab with Sound Suppression and Pressurization
  • Static Seatbelt
  • Seat, Air Suspension, Caterpillar Comfort, cloth
  • Steering Wheel - tilt and telescoping
  • Storage Compartment
  • Throttle Lock
  • Transmission Hold
  • Windows - sliding side, swing out
  • Windshield - laminated glass
  • Windshield Wiper/Washer - front and rear

POWER TRAIN
  • Engine
  • Braking System
  • Transmission

OTHER STANDARD EQUIPMENT
  • Extended Life Coolant, -36° C (-33° F)
  • Fan hub, permanent lube
  • Fast Oil Change
  • Fenders
  • Rims - 35 inch (2)
  • Tires, 37.50-R35 radial
  • Tractor:

631G Optional Equipment

• Crankcase Guard, Heavy Duty

• Extended Life Coolant, -50° C (-58° F)

• Fan, Defrost

• Fenders (scraper)

• Fuel system - (fast-fill European Union Compliant)

• Heater - jacket water

• Hydraulic Retarder

• Lights, Side Vision

• Lock, Steering

• Overflow Scraper Guard

• Powertrain Guard

• Retractable seat belts

• Secondary Steering

Cat® Dealer Service

Buy any piece of Cat® equipment and also get the full support and commitment of your local Cat Dealer.

Contact your local dealer
Financing & Insurance

You can count on Cat Financial to provide the best financial solutions, built just for you.

See our Current Offers