Scraper Calculator

Calculate the cost and production rate of earthworks using a scraper fleet.

Compatible for iOS 7 and iOS 8. Calculator can use both imperial and metric units. Currency and number format are location specific.

Use this pocket estimating tool to:

• Calculate production rates and costs based on site conditions and the type of scraper used.

• Calculate the number of push dozers required (if applicable) and pushes per dozer per hour.

• Identify the most cost effective number of scrapers in your fleet using the +- button on the results page.

• Choose from the pre-loaded scrapers in the picker wheel or use 'Custom' to enter your own details.

Definition of terms:

• Haul Distance: The distance between the excavation site and the fill / spoil site.

• Average Speed: The average speed of the scrapers along the route between sites.

• Heaped Capacity: The maximum amount of material a scraper bowl can hold.

• Dump Time: The time taken for the scraper to empty its bowl at the destination site.

• Load efficiency: A factor that reduces the Heaped capacity based on site conditions, material bulking etc.

• Load Time: Time to load the scraper bowl.

• Productive Time: The average number of minutes within an hour that are productive during excavation.

• Reposition Dozer: The time taken for a dozer to return to its start position after completing a push (push loaded scrapers only).