Four models of pull-type scrapers are available in 17- and 22-cu.-yd. capacities, and in standard two-wheel (E-17 and E-22) or an advanced four-wheel design (E-17XW and E-22XW).

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.

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 ...