Home / Equipment / Caterpillar Machines / Scrapers / 631G Wheel Tractor Scraper
Caterpillar 631G Wheel Tractor Scraper
Caterpillar 631G Wheel Tractor ScraperCaterpillar Wheel Tractor-Scrapers offer fast cycle times, with quick loading, high travel speeds and the ability to load and dump on the run. Rugged construction and easy maintenance assure long life with low operating costs. |  |  | |||
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 | Overview & Specifications | |  | Features & Benefits | | | Standard Equipment | | | Optional Equipment | | | Work Tools & Attachments | ||
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| Scraper Bowl | |
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| Capacity Heaped | 34 yd3 / 26 m3 |
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| Rated Load | 82200 lb / 37285 kg |
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| Capacity Struck | 24 yd3 / 18.3 m3 |
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| Depth of Cut - max. | 17.2 in / 437 mm |
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| Width of Cut, to Router Bits | 138.3 in / 3512 mm |
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| Ground Clearance - max. | 21.5 in / 545 mm |
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| Cutting Edge - thickness | 1.12 in. / 28 mm |
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| Hyd. Penetration Force - 631G | 57375 lb / 255 kN |
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| Depth of Spread - max. | 18.9 in / 480 mm |
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| Apron Opening | 79 in / 2007 mm |
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| Apron Closure Force | 38250 lb / 170 kN |
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| Transmission | |
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| Travel Speed Maximum | 33.2 mph / 53.5 km/h |
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| 1 Forward | 2.9 mph / 4.7 km/h |
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| 2 Forward | 5.2 mph / 8.4 km/h |
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| 5 Forward | 13.4 mph / 21.6 km/h |
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| 3 Forward | 7.4 mph / 11.9 km/h |
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| 4 Forward | 10 mph / 16.1 km/h |
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| 6 Forward | 18.2 mph / 29.3 km/h |
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| 7 Forward | 24.5 mph / 39.4 km/h |
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| 8 Forward | 33.2 mph / 53.5 km/h |
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| Reverse | 6.2 mph / 9.9 km/h |
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| Tractor Engine | |
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| Net Power - Tractor/Scraper | 345 kW (462 hp) |
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| Net Power | 345/373 kW 462/500 hp |
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| Gross Power - Gears 1-2 | 488 hp / 364 kW |
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| Gross Power - Gears 3-8 | 526 hp / 392 kW |
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| Net Power - Gears 1-2 | 462 hp / 345 kW |
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| Net Power - Gears 3-8 | 500 hp / 373 kW |
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| Bore | 5.7 in / 145 mm |
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| Stroke | 7.2 in / 183 mm |
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| Displacement | 1105 in3 / 18.1 L |
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| Weights | |
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| Operating Weight | 102459.71 lb / 46475 kg |
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| Weights - Standard, tandem | |
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| Total Shipping | 100005.97 lb / 45362 kg |
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| Total Operating - empty | 102459.71 lb / 46475 kg |
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| Front Axle | 68647.46 lb / 31138 kg |
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| Rear Axle | 33812.26 lb / 15337 kg |
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| Total Operating - loaded | 184658.97 lb / 83760 kg |
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| Front Axle Weight - loaded | 97869.7 lb / 44393 kg |
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| Rear Axle Weight - loaded | 86789.28 lb / 39367 kg |
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| Dimensions | |
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| Width - overall machine | 155 in / 3938 mm |
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| Width - tractor | 137 in / 3481 mm |
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| Width - rear tire center lines | 97 in / 2464 mm |
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| Width - inside of bowl | 134 in / 3405 mm |
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| Width - outside rear tires | 143.2 in / 3636 mm |
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| Height - overall shipping | 168.8 in / 4286 mm |
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| Height - top of cab | 146.3 in / 3715 mm |
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| Ground Clearance, Tractor | 26.2 in / 665 mm |
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| Front of Tractor to Front Axle | 132.2 in / 3359 mm |
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| Axle to Vertical Hitch Pin | 21.6 in / 548 mm |
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| Height - scraper blade max. | 21.5 in / 545 mm |
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| Wheelbase | 345.2 in / 8769 mm |
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| Length - overall machine | 573.4 in / 14565 mm |
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| Rear Axle to Rear of Machine | 95.97 in / 2437 mm |
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| Steering | |
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| Width - 180° Turn | 40.02 ft / 12.2 m |
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| Steering Angle - right | 90° |
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| Steering Angle - left | 85° |
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| Service Refill Capacities - Tractor | |
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| Crankcase | 11.9 gal / 45 L |
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| Fuel Tank - 631G | 215.04 gal / 814 L |
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| Transmission | 29 gal / 110 L |
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| Differential | 39 gal / 148 L |
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| Final Drive (per side) | 6.1 gal / 23 L |
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| Cooling System | 29 gal / 110 L |
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| Hydraulic Reservoir | 50.2 gal / 190 L |
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| Wheel Coolant (each) | 19.8 gal / 75 L |
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| Windshield Washer | 1.5 gal / 6 L |
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| Hydraulics | |
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| Bowl Cylinder Bore | 7.2 in / 184 mm |
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| Bowl Cylinder Stoke | 34.4 in / 873 mm |
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| Apron Cylinder Bore | 8.2 in / 210 mm |
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| Apron Cylinder Stroke | 28.6 in / 727 mm |
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| Ejector Cylinder Bore | 8.2 in / 210 mm |
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| Ejector Cylinder Stroke | 74 in / 1880 mm |
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| Steering Circuit | 100 gal/min / 379 L/min |
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| Scraper Circuit | 91 gal/min / 344 L/min |
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| Cushion Hitch Circuit | 9 gal/min / 34.5 L/min |
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| Secondary Steering Circuit | 100 gal/min / 379 L/min |
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| Relief Valve - Steering Circuit | 1987 psi / 13700 kPa |
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| Relief Valve - Implement Circuit | 2030 psi / 14000 kPa |
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| Compensator Setting - Cushion Hitch Circuit | 2320 psi / 16000 kPa |
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| Service Refill Capacities - Scraper | |
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| Fuel Tank - 631G | 215 gal / 814 L |
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| Wheel Coolant (each) | 19.8 gal / 75 L |
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| Transmission - 631G | |
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| 1 Forward | 2.9 mph / 4.7 km/h |
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| 2 Forward | 5.2 mph / 8.4 km/h |
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| 3 Forward | 7.4 mph / 11.9 km/h |
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| 4 Forward | 10 mph / 16.1 km/h |
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| 5 Forward | 13.4 mph / 21.6 km/h |
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| 6 Forward | 18.2 mph / 29.3 km/h |
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| 7 Forward | 24.5 mph / 39.4 km/h |
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| 8 Forward | 33.2 mph / 53.5 km/h |
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| Reverse | 6.2 mph / 9.9 km/h |
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