Sand Making Machine VSI Vibrating Screen helps feed Vertical Shaft Impactor during the process of making sand. Stone first comes to Vibrating Screen where it gets processed by getting vibration, then it goes to the VSI for further processing. The vibrating screen component of the equipment is responsible for the classification and separation of the sand particles according to their sizes. It consists of multiple decks or layers of screens with different-sized openings. The vibration of the screen helps to ensure the proper movement and separation of the sand particles based on their size and shape.