Design of a Self Loading Scraper with Stationary Bowl Floor and Liftable Elevator

A new concept self loading scraper with a semi-floating liftable elevator has been developed which ejects material over the front of a full-length stationary bowl floor and cutting blade.

Automatic elevator lift is accomplished by hydraulic pressure bleed-off from the two stage ejector circuit while unloading, and allows material to flow freely over the front of the cutting blade at desired spread thickness.