Cat Grade Control for Wheel Tractor-Scrapers

Cat® Grade Control for Wheel Tractor-Scrapers is a factory-integrated machine control and guidance system designed to help you move material correctly the first time.

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Grade Technologies for Scrapers Brochure

Coal Bowl Scrapers

Cat® coal bowl scrapers use a high volume bowl designed to help the power generation industry move low density loose coal within the power generation facility.

Model Flywheel Power - Tractor/Scraper Scraper Capacity - Heaped Top Speed - Loaded
637K 425 kW (570 hp)/216 kW (290 hp) 50 yd³ / 38 m³ 34.7 mile/h / 55.8 km/h

Elevating Scrapers

Cat® elevating scrapers are a self-loading hauling system with the added ability to mix and homogenize material. Elevator scrapers also excel at fine finish grading work.

Model Flywheel Power - Tractor/Scraper Scraper Capacity - Heaped Top Speed - Loaded
623K 304 kW (407 hp) 23 yd³ / 17.6 m³ 33.5 mile/h / 53.9 km/h

Open Bowl Scrapers

Cat® open bowl wheel-tractor scrapers are a high production hauling solution with a broad material appetite. Open bowl scrapers are available as a self-loading, push-loaded or push-pull hauling system.

Model
621K
627K
631K
637K
657
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