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.
Tractor Engine Cat C18
Flywheel Power - Tractor/Scraper 469kW (629 hp) / 353 kW (473 hp)
Scraper Engine Cat C15
Scraper Capacity - Heaped 44 yd³
Scraper Engine Cat C15
Tractor Engine Cat C18
Bore 5.7in
Displacement 1105in³
Flywheel Power - Tractor/Scraper 469kW (629 hp) / 353 kW (473 hp)
Gross Power (SAE J1995) 637HP
Net Power 469 kW/637 hp
Net Power (ISO 14396) 637HP
Net Power (SAE J1349/ISO 9249) 592HP
Stroke 7.2in
Apron Closure Force 39200lb
Apron Opening 92in
Capacity - Struck 32yd³
Depth of Cut - Maximum 16.4in
Depth of Spread - Maximum 26in
Ground Clearance - Maximum 2.3ft
Hyd. Penetration Force - 657G 121000lb
Rated Load 104058lb
Scraper Capacity - Heaped 44yd³
Width - Cut - To Router Bits 12.5ft
1 Forward 3.5mile/h
2 Forward 6.5mile/h
3 Forward 7.8mile/h
4 Forward 10.6mile/h
5 Forward 14.2mile/h
6 Forward 19.2mile/h
7 Forward 25.7mile/h
8 Forward 34.9mile/h
Reverse 6.7mile/h
Top Speed - Loaded 33mile/h
Bore 5.4in
Displacement 928in³
Gross Power (SAE J1995) 481HP
Net Power 353 kW/447 hp
Net Power (ISO 14396) 480HP
Net Power (SAE J1349/ISO 9249) 452HP
Stroke 6.75in
Front Axle 93842lb
Front Axle - Loaded 134165lb
Rear Axle 66663lb
Rear Axle - Loaded 130340lb
Scraper Shipping 64068lb
Total Operating - Empty 164244lb
Total Operating - Loaded 268302lb
Total Shipping 160505lb
Tractor Shipping 93635lb
Axle to Vertical Hitch Pin 1.8ft
Front of Tractor to Front Axle 14.93ft
Ground Clearance - Tractor 2.3ft
Height - Overall Shipping 15.29ft
Height - Scraper Blade Maximum 2.17ft
Height - Top of Cab 12.86ft
Length - Overall Machine 58.96ft
Rear Axle - Rear of Machine 8.07ft
Wheel Base 32.68ft
Width - Inside of Bowl 12.07ft
Width - Outside Bowl - Shipping Width 12.98ft
Width - Overall Machine 14.3ft
Width - Rear Tire Center Lines 9.21ft
Width - Tractor 12.3ft
Steering Angle - Left 85
Steering Angle - Right 90
Width - 180° Turn - Left 47.57ft
Width - 180° Turn - Right 45.4ft
Cooling System 23.4gal (US)
Crankcase 13.7gal (US)
Differential 36gal (US)
Final Drive - Each 6gal (US)
Hydraulic Reservoir 39.6gal (US)
Transmission 35.9gal (US)
Windshield Washer 0.5gal (US)
Apron Cylinder Bore 7.08in
Apron Cylinder Stroke 29.92in
Bowl Cylinder Bore 7.08in
Bowl Cylinder Stroke 37.4in
Compensator Settings - Cushion Hitch Circuit 3002psi
Cushion Hitch Circuit 19.54gal/min
Relief Valve - Implement Circuit 1999psi
Relief Valve - Steering Circuit 1959psi
Secondary Steering Circuit 14.52gal/hr
Steering Circuit (@ High Idle) 76.08gal/min
Cooling System 16.6gal (US)
Crankcase 8.9gal (US)
Differential 44gal (US)
Final Drive - Each 7.8gal (US)
Fuel Tank - 657G 430gal (US)
Transmission 31.9gal (US)
Standard and optional equipment may vary. Consult your Cat dealer for details.
Alarm, backup
Alternator, 115 amp - tractor engine
Alternator, 65 amp - scraper engine
Batteries Tractor (4), 12V Maintenance Free, High Output
Batteries Scraper (4), 12V Maintenance Free, High Output
Electrical System, 24V
Lighting System - Tractor
Lighting System - Scraper
Starting Receptacle - tractor and scraper engines
Air Conditioner (includes heater and defroster)
Automotive style fuse panel with fuse puller
Lunch box platform with holding strap
Coat Hook
Cup holder
Diagnostic Connection Port (12V)
Dome Courtesy Light
Engine speed lock
Fan defroster
Gauge Group
Horn
Implement Control Joystick
Rearview Mirrors
Radio Ready
2 radio openings, speakers, and 5-amp converter
ROPS Cab with Sound Suppression and Pressurization
Static Seatbelt, 2 piece
Scraper Engine Controls
Seat, Air Suspension, Cat Advanced Ride Management
Steering Wheel - tilt and telescoping
Storage Compartment
Transmission Hold
Windows - sliding side
Windshield - laminated glass
Windshield Wiper/Washer - front and rear
Wrist Rest/Grab Handle
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