In actuality, rock screens are vitally important to any company that deals with rock crushing. The crushers won’t crush the rocks to a consistent size every time. Once the rocks are crushed, they’re going to run through a screen for two reasons. First, you want to get the sizes you need, and second, they are used to either wash or dewater the material.

The rock itself is filtered and isolated to the correct size to meet the customer’s specifications for base, asphalt, or concrete. One quarry might see high yields specifically for concrete, while another quarry may focus heavily on making products of a smaller size for asphalt, and other times a quarry might need the flexibility to make both. Furthermore, customers’ product specifications are becoming even tighter (smaller margins of error) and can vary widely even across very geographically similar markets. For these reasons, among others, aggregate producers must understand the significance of the rock screen to the success of their operation.