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Caterpillar

637E II

Scraper

Net Power
450.0 hp
Gross Power
490.0 hp
Max Speed - Forward
33.0 mph
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Caterpillar 637E II Scraper
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Specifications

107 data points

Operating Specifications

Operating Specifications specifications
Fuel Capacity335.0 gal
Tire Size37.25R35 E2/E3
Rated Load75,000 lb
Scraper Capacity - Heaped50.00 yd³
Scraper Capacity - Struck41.00 yd³
Top Speed - Loaded34.1 mph

Engine

Engine specifications
Tractor EngineCat 3408E
Flywheel Power - Tractor/Scraper365 kW (490)/186 kW (250)
Scraper Engine3306

Weights

Weights specifications
Operating Weight112,670 lb
Operating Weight - Loaded - Approximate113,580 lb
Total Operating - empty112,414 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 Circuit1,960 psi
Cushion Hitch Circuit9.0 gal/min
Relief Valve - Implement Circuit2,000 psi
Apron Cylinder Bore8 in
Apron Cylinder Stroke29 in
Compensator Settings - Cushion Hitch Circuit2,300 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
Wheel Base346 in
Width - Outside Rear Tires143 in
Length - Overall Machine574 in
Height - Scraper Blade Maximum22 in
Height - Overall Shipping169 in
Width - Inside of Bowl134 in
Front of Tractor to Front Axle132 in
Width - Overall Machine155 in
Rear Axle - Rear of Machine96 in
Width - Rear Tire Center Lines97 in
Width - Tractor137 in
Bail Length - Maximum (Push-Pull)76 in

Transmission

Transmission specifications
Max Speed - Forward33.0 mph
1 Forward3.4 mph
2 Forward6.2 mph
3 Forward7.6 mph
4 Forward10.3 mph
5 Forward13.8 mph
6 Forward18.7 mph
Reverse6.2 mph
7 Forward25.2 mph
8 Forward34.1 mph

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 System52.0 gal/min

Bowl

Bowl specifications
Heaped Capacity31.00 yd³
Width of Cut139 in
Max Depth of Cut17 in
Rated Payload75,001 lb
Struck Capacity21.10 yd³

Scraper Engine

Scraper Engine specifications
Net Power - Gear 1250.0 hp
Gross Power250.0 hp
Gross Power - Gear 1270.0 hp
Displacement638 in³
Bore5 in
Stroke6 in

Tractor Engine

Tractor Engine specifications
Net Power450.0 hp
Net Power - Gears 1-2450.0 hp
Net Power - Gears 3-8490.0 hp
Gross Power490.0 hp
Gross Power - Gears 3-8515.0 hp
Displacement1,099 in³
Bore5 in
Stroke6 in
Caterpillar Net Power490.0 hp
EEC 80/1269490.0 hp
ISO 9249490.0 hp
SAE J1349485.0 hp

Scraper Bowl

Scraper Bowl specifications
Rated Load75,000 lb
Capacity - Struck21.01 yd³
Depth of Spread - Maximum19 in
Ground Clearance - Maximum22 in
Depth of Cut - Maximum17 in
Scraper Capacity - Heaped31.00 yd³
Width - Cut - To Router Bits138 in
Cutting Edge Thickness2 in
Apron Closure Force38,250 lb
Apron Opening79 in
Hyd. Penetration Force - 621G81,000 lb

Service Refill Capacities - Tractor

Service Refill Capacities - Tractor specifications
Cooling System33.0 gal
Differential36.0 gal
Final Drive - Each7.0 gal
Hydraulic Reservoir50.0 gal
Transmission33.0 gal
Crankcase11.7 gal
Wheel Coolant - Each19.5 gal

Weights - Standard, Tandem

Weights - Standard, Tandem specifications
Front Axle66,475 lb
Front Axle Weight - Loaded91,958 lb
Rear Axle46,195 lb
Rear Axle - Weight - Loaded95,712 lb
Total Operating - Empty112,670 lb
Total Operating - Loaded187,670 lb
Scraper Shipping66,412 lb
Total Shipping110,686 lb
Tractor Shipping44,274 lb

Comparable machines

Other scrapers in a similar weight class.