Elevating scrapers such as this Cat 623G have the advantage of being able to load themselves without the help of a pusher. To the casual observer, the scraper market may seem to be shrinking. But a ...

The H Series wheel tractor-scrapers include the 621H single-engine, open bowl machine, the 623H with elevating scraper and a single engine and the open-bowl 627H with twin engines and all-wheel drive.

As developers seek methods for reducing the impacts of their projects on the natural environment, the contractors who work for them are doing the same thing. In Mount Vernon, Wash., contractor Plats ...