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

657 Coal Bowl

Tractor Engine
Cat C18
Flywheel Power - Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Scraper Capacity - Heaped
44 yd³ (33.6 m³)

657G

Flywheel Power - Tractor/Scraper
447 kw (600 hp) / 337 kW (451 hp)
Scraper Capacity - Heaped
73 yd³ (56 m³)
Top Speed - Loaded
33 mile/h (53 km/h)

Open Bowl Scrapers

The Cat 621 Wheel Tractor-Scraper

Flywheel Power - Tractor/Scraper
304 kW (407 hp)
Scraper Capacity - Heaped
24 yd³ (18.4 m³)
Top Speed - Loaded
33.5 mile/h (53.9 km/h)

651

Tractor Engine
Cat C18
Flywheel Power - Tractor/Scraper
469kW (629 hp)
Scraper Capacity - Heaped
44 yd³ (33.6 m³)

657

Tractor Engine
Cat C18
Flywheel Power - Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Scraper Capacity - Heaped
44 yd³ (33.6 m³)

Partial Scrapers

Cat 621 partial wheel tractor scraper

Tractor Engine
Cat® C13
Flywheel Power - Tractor
407 HP (304 kW)
Top Speed - Loaded
33.5 mile/h (53.9 km/h)

Cat 631 partial wheel tractor scraper

Tractor Engine
Cat® C18
Flywheel Power - Tractor
570 HP (425 kW)
Top Speed - Loaded
34.7 mile/h (55.8 km/h)

Cat 651 partial wheel tractor scraper

Tractor Engine
Cat® C18
Gross Power (SAE J1995)
637 HP (475 kW)
Top Speed - Loaded
34.9 mile/h (56.1 km/h)