Wheel Tractor-Scrapers

Cat Wheel Tractor-Scrapers have the power, traction, and speed for reliable output in a variety of applications. Scraper options include single- and tandem-engine open bowls, tandem engine push-pulls, elevators, and auger arrangements.

Coal Bowl Scrapers

Coal Bowl Scrapers use a high volume bowl designed to help the power generation industry move low density loose coal within the power generation facility.

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637K (TIER 4 FINAL/STAGE IV)

Flywheel Power - Tractor/Scraper
425 kW (570 hp)/216 kW (290 hp)

Scraper Capacity - Heaped
38 m³50 yd³

Top Speed - Loaded
55.8 km/h34.7 mile/h

Open Bowl Scrapers

The Open Bowl Wheel Tractor-Scraper is available as a self-loading, push loaded or push loaded hauling system with a broad material appetite.

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621K

180° Curb-to-Curb Turning Width
11.8 m38.71 ft

Fuel Tank Refill Capacity - Scraper
763 l201 gal (US)

Maximum Depth of Cut
315 mm12.4 in

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631K (Tier 4 Final/Stage IV)

180° Curb-to-Curb Turning Width
12.23 m40.12 ft

Fuel Tank Refill Capacity - Scraper
874 l231 gal (US)

Maximum Depth of Cut
450 mm17.7 in

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637K (Tier 4 Final/Stage IV)

180° Curb-to-Curb Turning Width
12.23 m40.12 ft

Fuel Tank Refill Capacity - Scraper
1400 l370 gal (US)

Maximum Depth of Cut
450 mm17.7 in

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657G

Tractor Engine
C18 ACERT

Scraper Engine
Cat C15 ACERT

Flywheel Power - Tractor/Scraper
447 kW (600 hp) / 337 kW (451 hp)

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657G

Tractor Engine
Cat® C18 ACERT™

Scraper Engine
Cat C15 ACERT

Flywheel Power - Tractor/Scraper
447 kW (600 hp) / 337 kW (451 hp)

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