Cat Wheel Tractor-Scrapers have the power, traction, and speed for reliable output in a variety of applications

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.

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621 Partial Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Tractor Engine

Cat® C13

Flywheel Power - Tractor

304 kW (407 hp)

Note

Meets U.S. EPA Tier 4 Final or EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

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621 Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Overall Shipping Height

4.03 m (13.22 ft)

Overall Width

3.58 m (11.75 ft)

Scraper Capacity - Heaped

18.4 mu00b3 (24 ydu00b3)

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623 Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Width - Cut

3.14 m (10.3 ft)

Fuel Tank Refill Capacity - Scraper

763 l (201 gal (US))

180u00b0 Curb-to-Curb Turning Width

11.8 m (38.71 ft)

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627 Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Scraper Capacity - Heaped

18.4 mu00b3 (24 ydu00b3)

Width - Cut

3.14 m (10.3 ft)

Maximum Depth of Cut

315 mm (12.4 in)

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631 Partial Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Tractor Engine

Cat® C18

Flywheel Power - Tractor

425 kW (570 hp)

Note

Meets U.S. EPA Tier 4 Final or EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

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631 Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Scraper Capacity - Heaped

26 mu00b3 (34 ydu00b3)

Overall Width

3.94 m (12.93 ft)

Maximum Depth of Cut

450 mm (17.7 in)

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637 Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Top Speed - Loaded

55.8 km/h (34.7 mile/h)

180u00b0 Curb-to-Curb Turning Width

12.23 m (40.12 ft)

Scraper Capacity - Heaped

26 mu00b3 (34 ydu00b3)

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637K Coal Bowl Scraper

Wheel Tractor-Scrapers

Flywheel Power - Tractor/Scraper

425 kW (570 hp)/216 kW (290 hp)

Scraper Capacity - Heaped

38 mu00b3 (50 ydu00b3)

Top Speed - Loaded

55.8 km/h (34.7 mile/h)

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651 Partial Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Tractor Engine

Cat® C18

Note

Meets U.S. EPA Tier 4 Final or EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

Gross Power (SAE J1995)

475 kW (637 hp)

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651 Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Tractor Engine

Cat C18

Flywheel Power - Tractor/Scraper

469kW (629 hp)

Net Power

469 kW/637 hp

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657 Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Tractor Engine

Cat C18

Scraper Engine

Cat C15

Flywheel Power - Tractor/Scraper

469kW (629 hp) / 353 kW (473 hp)

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657 Coal Bowl Scraper

Wheel Tractor-Scrapers

Tractor Engine

Cat C18

Scraper Engine

Cat C15

Flywheel Power - Tractor/Scraper

469kW (629 hp) / 353 kW (473 hp)

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