657 Wheel Tractor-Scraper

High productivity / low cost solution

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.

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.

Highlights
Features & Specs
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Equipment Highlights

Purpose-Built Coal Bowl
Be More Productive
Work in Comfort
Designed for Safety
Easy to Operate
Integrated Cat Technologies
Execute Efficiency

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Features + Specs

Equipment Features
Optional Equipment
Specs
  • Tractor Engine: Cat® C18
  • Scraper Engine: Cat® C15
  • Width - 180° Turn - Right: 45.4 ft
  • Width - 180° Turn - Left: 47.57 ft
  • Steering Angle - Right: 90
  • Steering Angle - Left: 85
  • Width - Overall Machine: 14.3 ft
  • Width - Tractor: 12.3 ft
  • Width - Rear Tire Center Lines: 9.23 ft
  • Width - Inside of Bowl: 12.07 ft
  • Width - Outside Bowl - Shipping Width: 12.98 ft
  • Height - Overall Shipping: 15.27 ft
  • Height - Top of Cab: 12.86 ft
  • Ground Clearance - Tractor: 2.36 ft
  • Front of Tractor to Front Axle: 12.72 ft
  • Axle to Vertical Hitch Pin: 1.8 ft
  • Height - Scraper Blade Maximum: 2.17 ft
  • Wheel Base: 32.68 ft
  • Length - Overall Machine: 58.96 ft
  • Rear Axle - Rear of Machine: 8.07 ft
  • Bowl Cylinder Bore: 7.08 in
  • Bowl Cylinder Stroke: 37.4 in
  • Apron Cylinder Bore: 7.08 in
  • Apron Cylinder Stroke: 29.92 in
  • Steering Circuit (@ High Idle): 76.08 gpm
  • Cushion Hitch Circuit: 19.54 gpm
  • Secondary Steering Circuit: 14.52 gal/hr
  • Relief Valve - Steering Circuit: 1959 psi
  • Relief Valve - Implement Circuit: 1999 psi
  • Compensator Settings - Cushion Hitch Circuit: 3002 psi
  • Scraper Capacity - Heaped: 73 yd³
  • Rated Load: 104058 lb
  • Capacity - Struck: 59 yd³
  • Depth of Cut - Maximum: 16.4 in
  • Width - Cut - To Router Bits: 12.5 ft
  • Ground Clearance - Maximum: 2.3 ft
  • Depth of Spread - Maximum: 26 in
  • Apron Opening: 92 in
  • Apron Closure Force: 39200 lb
  • Hyd. Penetration Force - 657G: 121000 lb
  • Top Speed - Loaded: 33 mile/h
  • 1 Forward: 3.5 mile/h
  • 2 Forward: 6.5 mile/h
  • 3 Forward: 7.8 mile/h
  • 4 Forward: 10.6 mile/h
  • 5 Forward: 14.2 mile/h
  • 6 Forward: 19.2 mile/h
  • 7 Forward: 25.7 mile/h
  • 8 Forward: 34.9 mile/h
  • Reverse: 6.7 mile/h
  • Net Power: 353 kW/447 hp
  • Gross Power (SAE J1995): 481 hp
  • Net Power (ISO 14396): 480 hp
  • Bore: 5.4 in
  • Stroke: 6.75 in
  • Displacement: 928 in³
  • Net Power (SAE J1349/ISO 9249): 452 hp
  • Flywheel Power - Tractor/Scraper: 469kW (629 hp) / 353 kW (473 hp)
  • Net Power: 469 kW/637 hp
  • Gross Power (SAE J1995): 637 hp
  • Net Power (ISO 14396): 637 hp
  • Bore: 5.7 in
  • Stroke: 7.2 in
  • Displacement: 1105 in³
  • Net Power (SAE J1349/ISO 9249): 592 hp
  • Total Shipping: 160505 lb
  • Tractor Shipping: 93635 lb
  • Scraper Shipping: 64068 lb
  • Total Operating - Empty: 164244 lb
  • Front Axle: 93842 lb
  • Rear Axle: 66663 lb
  • Total Operating - Loaded: 268302 lb
  • Front Axle - Loaded: 134165 lb
  • Rear Axle - Loaded: 130340 lb
  • Fuel Tank - 657G: 430 gal (US)
  • Crankcase: 8.9 gal (US)
  • Transmission: 31.9 gal (US)
  • Differential: 44 gal (US)
  • Cooling System: 16.6 gal (US)
  • Final Drive - Each: 7.8 gal (US)
  • Crankcase: 13.7 gal (US)
  • Transmission: 35.9 gal (US)
  • Differential: 36 gal (US)
  • Cooling System: 23.4 gal (US)
  • Hydraulic Reservoir: 39.6 gal (US)
  • Windshield Washer: 0.5 gal (US)
  • Final Drive - Each: 6 gal (US)
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