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Caterpillar

631G

Scraper

Gross Power
515.0 hp
Max Speed - Forward
33.2 mph
Max Speed - Reverse
6.2 mph
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Caterpillar 631G Scraper
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Specifications

110 data points

Operating Specifications

Operating Specifications specifications
Fuel Capacity215.1 gal
Tire Size37.50-R35
Cooling System Fluid Capacity32.0 gal
Transmission Fluid Capacity33.0 gal
Engine Oil Fluid Capacity11.7 gal
Hydraulic System Fluid Capacity50.2 gal
Operating Voltage24 V
Differential Fluid Capacity36.0 gal
Alternator Supplied Amperage75 A
Wheel Coolant Fluid Capacity - each19.8 gal

Engine

Engine specifications
Tractor Engine3408E

Weights

Weights specifications
Operating Weight102,460 lb
Total Operating - empty102,460 lb
Total Operating - Loaded177,460 lb
Front Axle - empty68,648 lb
Rear Axle - empty33,812 lb
Front Axel - loaded94,054 lb
Rear Axle - loaded83,406 lb

Hydraulic System

Hydraulic System specifications
Bowl Cylinder Bore7 in
Bowl Cylinder Stroke34 in
Ejector Cylinder Stroke74 in
Ejector Cylinder Bore8 in
Scraper Circuit91.0 gal/min
Steering Circuit103.0 gal/min
Relief Valve - Steering Circuit1,987 psi
Cushion Hitch Circuit9.0 gal/min
Relief Valve - Implement Circuit2,030 psi
Apron Cylinder Bore8 in
Apron Cylinder Stroke29 in
Compensator Settings - Cushion Hitch Circuit2,320 psi
Secondary Steering Circuit77.0 gal/min

Dimensions

Dimensions specifications
Height - Top of Cab146 in
Wheelbase346 in
Overall Length574 in
Overall Width156 in
Overall Height169 in
Tractor Ground Clearance26 in
Width - Outside Rear Tires143 in
Length - Overall Machine573 in
Height - Scraper Blade Maximum22 in
Height - Overall Shipping168 in
Width - Inside of Bowl134 in
Width - Tractor137 in
Axle to Vertical Hitch Pin22 in

Transmission

Transmission specifications
Max Speed - Forward33.2 mph
Max Speed - Reverse6.2 mph
Number of Forward Gears8
Number of Reverse Gears1
1 Forward2.9 mph
2 Forward5.2 mph
3 Forward7.4 mph
4 Forward10.0 mph
5 Forward13.4 mph
6 Forward18.2 mph
Reverse6.2 mph
7 Forward24.5 mph
8 Forward33.2 mph
Transmission Type8-speed automatic Powershift with Electronic Control
Top Speed - Loaded33.0 mph

Standards

Standards specifications
BrakesMeets ISO 3450: 1996 standard

Steering System

Steering System specifications
Steering Angle - Left85 °
Steering Angle - Right90 °
Width - 180 degrees Turn481 in
Hydraulic Output96.2 gal/min
Ground-Driven Secondary Steering System51.0 gal/min

Bowl

Bowl specifications
Heaped Capacity31.00 yd³
Width of Cut139 in
Max Depth of Cut17 in
Rated Payload75,000 lb
Struck Capacity21.01 yd³

Tractor Engine

Tractor Engine specifications
Net Power - Gears 1-2450.0 hp
Net Power - Gears 3-8490.0 hp
Net Power - Tractor/Scraper450.6 hp
Gross Power515.0 hp
Gross Power - Gears 3-8515.0 hp
Displacement1,099 in³
MakeCaterpillar
Caterpillar Net Power490.0 hp
EEC 80/1269490.0 hp
ISO 9249490.0 hp
SAE J1349490.0 hp
Flywheel Power - Tractor/Scraper373 kW (500)

Scraper Bowl

Scraper Bowl specifications
Rated Load75,000 lb
Capacity - Struck21.01 yd³
Depth of Spread - Maximum19 in
Ground Clearance - Maximum22 in
Scraper Capacity - Heaped31.00 yd³
Cutting Edge Thickness2 in
Apron Closure Force38,250 lb
Apron Opening79 in
Hyd. Penetration Force - 621G57,375 lb
Capacity Heaped33.99 yd³

Service Refill Capacities - Tractor

Service Refill Capacities - Tractor specifications
Cooling System32.0 gal
Differential36.0 gal
Final Drive - Each7.0 gal
Hydraulic Reservoir50.0 gal
Transmission33.0 gal
Crankcase11.7 gal
Wheel Coolant - Each19.5 gal
Windshield Washer6.0 gal

Weights - Standard, Tandem

Weights - Standard, Tandem specifications
Front Axle68,648 lb
Front Axle Weight - Loaded94,054 lb
Rear Axle33,812 lb
Rear Axle - Weight - Loaded83,406 lb
Total Operating - Empty102,460 lb
Total Operating - Loaded177,460 lb
Scraper Shipping54,004 lb
Total Shipping100,006 lb
Tractor Shipping46,002 lb

Service Refill Capacities - Scraper

Service Refill Capacities - Scraper specifications
Wheel Coolant - Each19.8 gal

Comparable machines

Other scrapers in a similar weight class.