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Overview

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.

Key Features

More Comfort. More Performance. More Versatility.

Enhanced Operator Comfort

Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

Up To 6% Improved Productivity

High volume Coal Bowl design, Improvements in fuel efficiency, utilizing payload estimator, and the new APECS transmission controls deliver increased productivity

Unparalleled Safety

Safety features help increase operator confidence by providing a safer environment for operations - effective wet disc brakes, WAVS camera, and powered access cab entry

Specifications

Tractor Engine Cat C18
Scraper Engine Cat C15
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
Net Power 353 kW/447 hp
Gross Power (SAE J1995) 481 hp
Net Power (ISO 14396) 480 hp
Net Power (SAE J1349/ISO 9249) 452 hp
Bore 5.4 in
Stroke 6.75 in
Displacement 928 in³
Scraper Capacity - Heaped 44 yd³
Rated Load 104058 lb
Capacity - Struck 32 yd³
Depth of Cut - Maximum 16.4 in
Width - Cut - To Router Bits 12.5 ft
Ground Clearance - Maximum 2.3 ft
Hyd. Penetration Force - 657G 121000 lb
Depth of Spread - Maximum 26 in
Apron Opening 92 in
Apron Closure Force 39200 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
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 gal/min
Cushion Hitch Circuit 19.54 gal/min
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
Width - 180° Turn - Right 45.4 ft
Width - 180° Turn - Left 47.57 ft
Steering Angle - Right 90
Steering Angle - Left 85
Crankcase 13.7 gal (US)
Transmission 35.9 gal (US)
Differential 36 gal (US)
Final Drive - Each 6 gal (US)
Cooling System 23.4 gal (US)
Hydraulic Reservoir 39.6 gal (US)
Windshield Washer 0.5 gal (US)
Fuel Tank - 657G 430 gal (US)
Crankcase 8.9 gal (US)
Transmission 31.9 gal (US)
Differential 44 gal (US)
Final Drive - Each 7.8 gal (US)
Cooling System 16.6 gal (US)
Width - Overall Machine 14.3 ft
Width - Tractor 12.3 ft
Width - Rear Tire Center Lines 9.21 ft
Width - Inside of Bowl 12.07 ft
Width - Outside Bowl - Shipping Width 12.98 ft
Height - Overall Shipping 15.29 ft
Height - Top of Cab 12.86 ft
Ground Clearance - Tractor 2.3 ft
Front of Tractor to Front Axle 14.93 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
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

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