Another kind of machine, called a portable crusher, can be moved to where the rocks are. It takes large rocks and makes smaller rocks of different sizes, too. Next, crushed stone passes through vibrating screens. Screening sorts and separates the rock into the different sizes which our company produces. Some stone will be washed with water to clean it so it can be used in cement and other types of building products.
Washing removes fine grains of sand, clay and dirt from the rock.
After crushing, screening and washing, the crushed stone is conveyed or hauled to stock piles. Loaders move the rock and place it into customer trucks when the rock is sold. Trucks or rail cars loaded with stone products deliver to our customers. Customer trucks are weighed at the scale office to make sure they are in compliance with weight laws and payment and billing arrangements are made. Trucks bring aggregates safely from the quarry to the building site.