Efficient Loading and Hauling

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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621K Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Maximum Depth of Cut

315 mm (12.4 in)

Maximum Depth of Spread

540 mm (21.3 in)

180u00b0 Curb-to-Curb Turning Width

11.8 m (38.71 ft)

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631K (Tier 4 Final/Stage IV)

Wheel Tractor-Scrapers

Tires - Scraper

37.25R35**E3

Rated Load

37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)

Scraper Capacity - Struck

18.3 mu00b3 (24 ydu00b3)

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631K Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Overall Shipping Height

3.89 m (12.75 ft)

Maximum Depth of Spread

535 mm (21.1 in)

Tires - Tractor

37.25R35**E3

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637K (Tier 4 Final/Stage IV)

Wheel Tractor-Scrapers

Rated Load

37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)

Fuel Tank Refill Capacity - Scraper

1400 l (370 gal (US))

180u00b0 Curb-to-Curb Turning Width

12.23 m (40.12 ft)

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637K Wheel Tractor – 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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637K Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Fuel Tank Refill Capacity - Scraper

1400 l (370 gal (US))

Top Speed - Loaded

55.8 km/h (34.7 mile/h)

Overall Shipping Height

4.15 m (13.62 ft)

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657G Wheel Tractor-Scraper

Wheel Tractor-Scrapers

Flywheel Power - Tractor/Scraper

447 kw (600 hp) / 337 kW (451 hp)

Flywheel Power - Tractor

421 / 447 kW (564 / 600 hp)

Flywheel Power - Scraper

306 / 337 kW (410 / 451 hp)

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