Caterpillar offers Wheel Tractor-Scrapers designed exclusively for your coal stockpiling and retrieval needs. The Caterpillar® 657 Coal Bowl Scrapers can construct and maintain your coal stockpiles, as well as haul loads to your inlet supply system to meet the burn requirements of the plant.
Engine | |
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Tractor Engine | Cat C18 |
Scraper Engine | Cat C15 |
Tractor Engine | |
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Flywheel Power - Tractor/Scraper | 469kW (629 hp) / 353 kW (473 hp) |
Net Power | 469 kW/637 hp |
Gross Power (SAE J1995) | 637 hp / 475 kW |
Net Power (ISO 14396) | 637 hp / 469 kW |
Bore | 5.7 in / 145 mm |
Stroke | 7.2 in / 183 mm |
Displacement | 1105 in³ / 18.1 l |
Net Power (SAE J1349/ISO 9249) | 592 hp / 436 kW |
Scraper Engine | |
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Net Power | 353 kW/447 hp |
Gross Power (SAE J1995) | 481 hp / 359 kW |
Net Power (ISO 14396) | 480 hp / 353 kW |
Net Power (SAE J1349/ISO 9249) | 452 hp / 333 kW |
Bore | 5.4 in / 137.2 mm |
Stroke | 6.75 in / 171.5 mm |
Displacement | 928 in³ / 15.2 l |
Scraper Bowl | |
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Scraper Capacity - Heaped | 44 yd³ / 33.6 m³ |
Rated Load | 104058 lb / 47200 kg |
Capacity - Struck | 32 yd³ / 24.5 m³ |
Depth of Cut - Maximum | 16.4 in / 417 mm |
Width - Cut - To Router Bits | 12.5 ft / 3.8 m |
Ground Clearance - Maximum | 2.3 ft / 0.7 m |
Hyd. Penetration Force - 657G | 121000 lb / 542 kN |
Depth of Spread - Maximum | 26 in / 660 mm |
Apron Opening | 92 in / 2337 mm |
Apron Closure Force | 39200 lb / 176 kN |
Transmission | |
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Top Speed - Loaded | 33 mile/h / 56.1 km/h |
1 Forward | 3.5 mile/h / 5.7 km/h |
2 Forward | 6.5 mile/h / 10.5 km/h |
3 Forward | 7.8 mile/h / 12.5 km/h |
4 Forward | 10.6 mile/h / 17 km/h |
5 Forward | 14.2 mile/h / 22.8 km/h |
6 Forward | 19.2 mile/h / 30.9 km/h |
7 Forward | 25.7 mile/h / 41.4 km/h |
8 Forward | 34.9 mile/h / 56.1 km/h |
Reverse | 6.7 mile/h / 10.8 km/h |
Hydraulics | |
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Bowl Cylinder Bore | 7.08 in / 180 mm |
Bowl Cylinder Stroke | 37.4 in / 950 mm |
Apron Cylinder Bore | 7.08 in / 180 mm |
Apron Cylinder Stroke | 29.92 in / 759.5 mm |
Steering Circuit (@ High Idle) | 76.08 gal/min / 288 l/min |
Cushion Hitch Circuit | 19.54 gal/min / 74 l/min |
Secondary Steering Circuit | 14.52 gal/hr / 55 l/hr |
Relief Valve - Steering Circuit | 1959 psi / 13500 kPa |
Relief Valve - Implement Circuit | 1999 psi / 13780 kPa |
Compensator Settings - Cushion Hitch Circuit | 3002 psi / 20700 kPa |
Steering | |
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Width - 180° Turn - Right | 45.4 ft / 13.85 m |
Width - 180° Turn - Left | 47.57 ft / 14.5 m |
Steering Angle - Right | 90 |
Steering Angle - Left | 85 |
Service Refill Capacities - Tractor | |
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Crankcase | 13.7 gal (US) / 38 l |
Transmission | 35.9 gal (US) / 136 l |
Differential | 36 gal (US) / 136 l |
Final Drive - Each | 6 gal (US) / 29.5 l |
Cooling System | 23.4 gal (US) / 88.6 l |
Hydraulic Reservoir | 39.6 gal (US) / 150 l |
Windshield Washer | 0.5 gal (US) / 5 l |
Service Refill Capacities - Scraper | |
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Fuel Tank - 657G | 430 gal (US) / 1628 l |
Crankcase | 8.9 gal (US) / 34 l |
Transmission | 31.9 gal (US) / 121 l |
Differential | 44 gal (US) / 168 l |
Final Drive - Each | 7.8 gal (US) / 30 l |
Cooling System | 16.6 gal (US) / 63.2 l |
Dimensions | |
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Width - Overall Machine | 14.3 ft / 4.36 m |
Width - Tractor | 12.3 ft / 3.75 m |
Width - Rear Tire Center Lines | 9.21 ft / 2.81 m |
Width - Inside of Bowl | 12.07 ft / 3.68 m |
Width - Outside Bowl - Shipping Width | 12.98 ft / 3.93 m |
Height - Overall Shipping | 15.29 ft / 4.66 m |
Height - Top of Cab | 12.86 ft / 3.92 m |
Ground Clearance - Tractor | 2.3 ft / 0.7 m |
Front of Tractor to Front Axle | 14.93 ft / 4.55 m |
Axle to Vertical Hitch Pin | 1.8 ft / 0.55 m |
Height - Scraper Blade Maximum | 2.17 ft / 0.66 m |
Wheel Base | 32.68 ft / 9.96 m |
Length - Overall Machine | 58.96 ft / 17.97 m |
Rear Axle - Rear of Machine | 8.07 ft / 2.46 m |
Weights - Push-Pull | |
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Total Shipping | 160505 lb / 72804 kg |
Tractor Shipping | 93635 lb / 42472 kg |
Scraper Shipping | 64068 lb / 29061 kg |
Total Operating - Empty | 164244 lb / 74500 kg |
Front Axle | 93842 lb / 42566 kg |
Rear Axle | 66663 lb / 30238 kg |
Total Operating - Loaded | 268302 lb / 121700 kg |
Front Axle - Loaded | 134165 lb / 60856 kg |
Rear Axle - Loaded | 130340 lb / 59121 kg |
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