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Coal reserve management Only Caterpillar offers Wheel Tractor-Scrapers designed exclusively for your coal stockpiling and retrieval needs. The Cat® 637G Coal Bowl Scraper can construct and maintain your coal stockpiles, as well as haul loads to your inlet supply system to meet the burn requirements of the plant.


  • Flywheel Power - Tractor/Scraper 373 kw (500 hp) / 211 kW (283 hp) 373 kw (500 hp) / 211 kW (283 hp)
  • Flywheel Power - Tractor 345 / 373 kW (462 / 500 hp) 345 / 373 kW (462 / 500 hp)
  • Flywheel Power - Scraper 198 / 211 kW (266 / 283 hp) 198 / 211 kW (266 / 283 hp)
  • Tractor Engine Cat® C18 with ACERT Technology Cat® C18 with ACERT Technology
  • Scraper Engine Cat C9 with ACERT Technology Cat C9 with ACERT Technology

Operating Specifications

  • Scraper Capacity - Heaped 50.0 yd³ 38.0 m³
  • Top Speed - Loaded 33.0 mile/h 53.0 km/h
  • Rated Load 76000.0 lb 34473.0 kg
  • Scraper Capacity - Struck 41.0 yd³ 31.0 m³
  • 180° Curb-to-Curb Turning Width 44.95 ft 13.7 m


  • Operating Weight - Loaded - Approximate 194909.0 lb 88409.0 kg
  • Operating Weight - Empty - Approximate 118909.0 lb 54050.0 kg


  • Height - Top of Scraper 13.71 ft 4.18 m
  • Wheel Base 31.27 ft 9.53 m
  • Length - Overall 50.75 ft 15.47 m
  • Width - Overall 12.93 ft 3.94 m
  • Tread - Scraper 8.07 ft 2.46 m
  • Tread - Tractor 8.07 ft 2.46 m

Coal Bowl Scraper Benefits

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Coal Stockpile Management

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Customer Service

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Power Train

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Electronically Controlled Cushion Hitch

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Scraper Bowl

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Operator's Station

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Complete Customer Support

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