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.

The Miami Trailer-Scraper Co. offered scrapers that were rear dumping. Hoisting was performed either through the drive wheels or, with a special attachment for the tractor, by means of powered winch.