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637G Wheel Tractor Scraper

637G Wheel Tractor Scraper

At a Glance

Flywheel Power - Tractor/Scraper
373 kW (500 hp) / 211 kW (283 hp)
Scraper Capacity - Heaped
34 yd³
Top Speed - Loaded
33 mile/h
Tractor Engine
Cat C18 ACERT™
Request a Demo Machine Comparison

Overview

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

Tractor Engine

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Flywheel Power - Tractor/Scraper 373 kW (500 hp) / 211 kW (283 hp)
Net Power 345 kW (462 hp) / 373 kW (500 hp)
Gross Power - Gears 1-2 488HP
Gross Power - Gears 3-8 526HP
Net Power - Gears 1-2 462HP
Net Power - Gears 3-8 500HP
Bore 5.7in
Stroke 7.2in
Displacement 1105in³

Scraper Bowl

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Scraper Capacity - Heaped 34yd³
Rated Load 82200lb
Capacity - Struck 24yd³
Depth of Cut - Maximum 17.2in
Width - Cut - To Router Bits 138.3in
Ground Clearance - Maximum 21.5in
Cutting Edge Thickness 1.12in
Hyd. Penetration Force - 637G 81000lb
Depth of Spread - Maximum 18.9in
Apron Opening 79in
Apron Closure Force 38250lb

Transmission

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Top Speed - Loaded 33mile/h
1 Forward 3.4mile/h
2 Forward 6.2mile/h
3 Forward 7.6mile/h
4 Forward 10.3mile/h
5 Forward 13.8mile/h
6 Forward 18.7mile/h
7 Forward 25.2mile/h
8 Forward 34.1mile/h
Reverse 6.2mile/h

Engine

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Tractor Engine Cat C18 ACERT™
Scraper Engine Cat C9 ACERT™

Scraper Engine

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Net Power 198 kW (266 hp) / 211 kW (283 hp)
Gross Power - Gear 1 286HP
Gross Power - Gears 2-4 303HP
Net Power - Gear 1 266HP
Net Power - Gears 2-4 283HP
Bore 4.4in
Stroke 5.9in
Displacement 538in³

Weights - Push-Pull

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Total Shipping 116100lb
Tractor Shipping 68499lb
Scraper Shipping 47601lb
Total Operating - Empty 118084lb
Front Axle 69670lb
Rear Axle 48414lb
Total Operating - Loaded 200284lb
Front Axle - Loaded 98139lb
Rear Axle - Loaded 102145lb

Dimensions

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Width - Overall Machine 155in
Width - Tractor 137in
Width - Rear Tire Center Lines 97in
Width - Inside of Bowl 134in
Width - Outside Rear Tires 143.2in
Width - Outside Bowl - Shipping Width 154in
Height - Overall Shipping 168.8in
Height - Top of Cab 146.3in
Ground Clearance - Tractor 26.2in
Front of Tractor to Front Axle 132.2in
Axle to Vertical Hitch Pin 21.6in
Height - Scraper Blade Maximum 21.5in
Wheel Base 345.2in
Length - Overall Machine 573.4in
Rear Axle - Rear of Machine 95.97in
Bail Length - Maximum (Push-Pull) 195.3in
Extended Push Block (Push-Pull) 108in

Weights - Standard, Tandem

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Total Shipping 112760lb
Tractor Shipping 66529lb
Scraper Shipping 46231lb
Total Operating - Empty 114744lb
Front Axle 67700lb
Rear Axle 47044lb
Total Operating - Loaded 196944lb
Front Axle Weight - Loaded 96503lb
Rear Axle - Weight - Loaded 100441lb

Service Refill Capacities - Scraper

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Fuel Tank - 637G 335gal (US)
Crankcase 7.9gal (US)
Transmission 19gal (US)
Differential 3.2gal (US)
Final Drive - Each 5gal (US)
Wheel Coolant - Each 19.8gal (US)
Cooling System 20gal (US)

Service Refill Capacities - Tractor

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Crankcase 11.9gal (US)
Fuel Tank - 637G 335gal (US)
Wheel Coolant - Each 19.8gal (US)
Windshield Washer 1.5gal (US)
Cooling System 29gal (US)
Differential 39gal (US)
Final Drive - Each 6.1gal (US)
Hydraulic Reservoir 50.2gal (US)
Transmission 29gal (US)

Transmission - 637G

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1 Forward 3.4mile/h
2 Forward 6.2mile/h
3 Forward 7.6mile/h
4 Forward 10.3mile/h
5 Forward 13.8mile/h
6 Forward 18.7mile/h
7 Forward 25.2mile/h
8 Forward 34.1mile/h
Reverse 6.2mile/h

Steering

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Width - 180° Turn 40.02ft
Width - 180° Turn - Right 40.1ft
Steering Angle - Right 90°
Steering Angle - Left 85°
Hydraulic Output 100gal/min

Hydraulics

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Bowl Cylinder Bore 7.2in
Bowl Cylinder Stroke 34.4in
Apron Cylinder Bore 8.2in
Apron Cylinder Stroke 28.6in
Ejector Cylinder Bore 8.2in
Ejector Cylinder Stroke 74in
Steering Circuit 100gal/min
Scraper Circuit 91gal/min
Cushion Hitch Circuit 9gal/min
Secondary Steering Circuit 100gal/min
Relief Valve - Steering Circuit 1987psi
Relief Valve - Implement Circuit 2030psi
Compensator Settings - Cushion Hitch Circuit 2320psi