The sand is manufactured in a three stage crushing process. The raw material is either granite or basalt rock. The VSI which is also referred as sand making machine is in the Tertiary Stage. The process adopted is similar to the river sand generation by nature. The VSI applies the principle of rock on rock collision at a high velocity shaping the sand particles.
The plant works on the principle of continuous feed in closed circuit and adopts the technique synonymous and comparable to nature's production of river sand. The complete manufacturing process takes minutes when compared to the nature which happens over millions of years.