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Home / Equipment / Caterpillar Machines / Scrapers / 637G Wheel Tractor Scraper

Caterpillar 637G Wheel Tractor Scraper

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.


View/Download Product Brochure (PDF)


Overview &
Specifications		Features
& Benefits		Standard
Equipment		Optional
Equipment		Work Tools &
Attachments		 

Scraper Bowl
Capacity Heaped34 yd3 / 26 m3
Rated Load82200 lb / 37285 kg
Capacity Struck24 yd3 / 18.3 m3
Depth of Cut - max.17.2 in / 437 mm
Width of Cut, to Router Bits138.3 in / 3512 mm
Ground Clearance - max.21.5 in / 545 mm
Cutting Edge - thickness1.12 in. / 28 mm
Hyd. Penetration Force - 637G81000 lb / 360 kN
Depth of Spread - max.18.9 in / 480 mm
Apron Opening79 in / 2007 mm
Apron Closure Force38250 lb / 170 kN

Transmission
Travel Speed Maximum34.1 mph / 54.9 km/h
1 Forward3.4 mph / 5.5 km/h
2 Forward6.2 mph / 10 km/h
3 Forward7.6 mph / 12.2 km/h
4 Forward10.3 mph / 16.6 km/h
5 Forward13.8 mph / 22.2 km/h
6 Forward18.7 mph / 30.1 km/h
7 Forward25.2 mph / 40.6 km/h
8 Forward34.1 mph / 54.9 km/h
Reverse6.2 mph / 9.9 km/h

Tractor Engine
Net Power - Tractor/Scraper345 kW (462 hp) / 373 kW (500 hp)
Net Power345 kW (462 hp) / 373 kW (500 hp)
Gross Power - Gears 1-2488 hp / 364 kW
Gross Power - Gears 3-8526 hp / 392 kW
Net Power - Gears 1-2462 hp / 345 kW
Net Power - Gears 3-8500 hp / 373 kW
Bore5.7 in / 145 mm
Stroke7.2 in / 183 mm
Displacement1105 in3 / 18.1 L

Scraper Engine
Net Power198 kW (266 hp) / 211 kW (283 hp)
Gross Power - Gear 1286 hp / 213 kW
Gross Power - Gears 2-4303 hp / 226 kW
Net Power - Gear 1266 hp / 198 kW
Net Power - Gears 2-4283 hp / 211 kW
Bore4.4 in / 112 mm
Stroke5.9 in / 149 mm
Displacement538 in3 / 8.8 L

Weights - Standard, tandem
Total Shipping112760 lb / 51147 kg
Tractor Shipping66529 lb / 30177 kg
Scraper Shipping46231 lb / 20970 kg
Total Operating - empty114744 lb / 52047 kg
Front Axle67700 lb / 30708 kg
Rear Axle47044 lb / 21339 kg
Total Operating - loaded196944 lb / 89332 kg
Front Axle Weight - loaded96503 lb / 43773 kg
Rear Axle Weight - loaded100441 lb / 45559 kg

Weights - Push-Pull
Total Shipping116100 lb / 52662 kg
Tractor Shipping68499 lb / 31071 kg
Scraper Shipping47601 lb / 21591 kg
Total Operating - empty118084 lb / 53562 kg
Front Axle69670 lb / 31602 kg
Rear Axle48414 lb / 21960 kg
Total Operating - loaded200284 lb / 90874 kg
Front Axle - loaded98139 lb / 44515 kg
Rear Axle (Loaded)102145 lb / 46332 kg

Dimensions
Width - overall machine155 in / 3938 mm
Width - tractor137 in / 3481 mm
Width - rear tire center lines97 in / 2464 mm
Width - inside of bowl134 in / 3405 mm
Width - outside rear tires143.2 in / 3636 mm
Width - outside bowl (shipping width)154 in / 3914 mm
Height - overall shipping168.8 in / 4286 mm
Height - top of cab146.3 in / 3715 mm
Ground Clearance, Tractor26.2 in / 665 mm
Front of Tractor to Front Axle132.2 in / 3359 mm
Axle to Vertical Hitch Pin21.6 in / 548 mm
Height - scraper blade max.21.5 in / 545 mm
Wheelbase345.2 in / 8769 mm
Length - overall machine573.4 in / 14565 mm
Rear Axle to Rear of Machine95.97 in / 2437 mm
Bail Length - max. (push-pull)195.3 in / 4960 mm
Extended Push Block (push-pull)108 in / 2744 mm

Steering
Width - 180° Turn40.02 ft / 12.2 m
Width - 180° Turn, right40.1 ft / 12.2 m
Steering Angle - right90°
Steering Angle - left85°
Hydraulic Output100 gal/min / 379 L/min

Service Refill Capacities - Tractor
Crankcase11.9 gal / 45 L
Fuel Tank - 637G335 gal / 1268 L
Transmission29 gal / 110 L
Differential39 gal / 148 L
Final Drive (per side)6.1 gal / 23 L
Cooling System29 gal / 110 L
Hydraulic Reservoir50.2 gal / 190 L
Wheel Coolant (each)19.8 gal / 75 L
Windshield Washer1.5 gal / 6 L

Hydraulics
Bowl Cylinder Bore7.2 in / 184 mm
Bowl Cylinder Stoke34.4 in / 873 mm
Apron Cylinder Bore8.2 in / 210 mm
Apron Cylinder Stroke28.6 in / 727 mm
Ejector Cylinder Bore8.2 in / 210 mm
Ejector Cylinder Stroke74 in / 1880 mm
Steering Circuit100 gal/min / 379 L/min
Scraper Circuit91 gal/min / 344 L/min
Cushion Hitch Circuit9 gal/min / 34.5 L/min
Secondary Steering Circuit100 gal/min / 379 L/min
Relief Valve - Steering Circuit1987 psi / 13700 kPa
Relief Valve - Implement Circuit2030 psi / 14000 kPa
Compensator Setting - Cushion Hitch Circuit2320 psi / 16000 kPa

Service Refill Capacities - Scraper
Fuel Tank - 637G335 gal / 1268 L
Crankcase7.9 gal / 30 L
Transmission19 gal / 72 L
Differential3.2 gal / 12 L
Final Drive (per side)5 gal / 19 L
Wheel Coolant (each)19.8 gal / 75 L
Cooling System20 gal / 76 L

Transmission - 637G
1 Forward3.4 mph / 5.5 km/h
2 Forward6.2 mph / 10 km/h
3 Forward7.6 mph / 12.2 km/h
4 Forward10.3 mph / 16.6 km/h
5 Forward13.8 mph / 22.2 km/h
6 Forward18.7 mph / 30.1 km/h
7 Forward25.2 mph / 40.6 km/h
8 Forward34.1 mph / 54.9 km/h
Reverse 6.2 mph / 9.9 km/h

 
INDIANA'S LEADING EQUIPMENT DEALER

MacAllister Machinery has 14 convenient locations throughout Indiana: Beech Grove, Bloomington, Fishers, Fort Wayne, Greensburg, Indianapolis (HQ, Power Systems), Indianapolis (West), Lafayette, Muncie, Richmond, South Bend, Terre Haute, and Washington.

Headquarters: 7515 E 30th St, Indianapolis, IN 46219
Phone: (317) 545-2151  In-State Toll Free: (800) 382-1896  Out of State Toll Free: (800) 227-3228