Scraper – site preparation for road building

Tractor-scraper – piece of heavy equipment used for earthmoving, road building, and mining. The rear part has a vertically moveable hopper (or bowl) with a sharp horizontal front edge. The hopper can be hydraulically lowered and raised. When the hopper is lowered, the front edge cuts into the soil or clay like a plane and fills the hopper. Scrapers can be very efficient on short hauls where the cut and fill areas are close together and have sufficient length to fill the hopper.

That’s engineering

  • bowl
  • apron
  • auger

Engineering ideas

  • hopper, hydraulic

Learn more…

  • Scraper (video 3:41) – song, description
  • Tractor-scraper – piece of heavy equipment used for earthmoving, road building, and mining.