Wheel Tractor-Scrapers

Cat® wheel tractor-scrapers have the power, traction, and speed for reliable output in a variety of earthmoving applications. Scraper options include single-engine and tandem-engine open bowls, tandem engine push-pulls and elevator arrangements.

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Coal Bowl Scrapers

637K

637K Coal Bowl Scraper
  • Flywheel Power - Tractor/Scraper
    425 kW (570 hp)/216 kW (290 hp)
  • Scraper Capacity - Heaped
    50 yd³
  • Top Speed - Loaded
    34.7 mile/h
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657G

657G Coal
  • Flywheel Power - Tractor/Scraper
    447 kw (600 hp) / 337 kW (451 hp)
  • Scraper Capacity - Heaped
    73 yd³
  • Top Speed - Loaded
    33 mile/h
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Open Bowl Scrapers

621K

621K
  • Flywheel Power - Tractor/Scraper
    304 kW (407 hp)
  • Scraper Capacity - Heaped
    24 yd³
  • Top Speed - Loaded
    33.5 mile/h
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631K

631K Open Bowl Scraper
  • Flywheel Power - Tractor/Scraper
    570 HP
  • Scraper Capacity - Heaped
    34 yd³
  • Top Speed - Loaded
    34.7 mile/h
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637K

637K Open Bowl Scraper
  • Flywheel Power - Tractor/Scraper
    570 HP
  • Scraper Capacity - Heaped
    34 yd³
  • Top Speed - Loaded
    34.7 mile/h
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657G

657G
  • Flywheel Power - Tractor/Scraper
    447 kW (600 hp) / 337 kW (451 hp)
  • Scraper Capacity - Heaped
    44 yd³
  • Top Speed - Loaded
    33 mile/h
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