Dolomite are directly exploited from dolomite mine of the Company in Ky Phu Commune, Nho Quan District, Ninh Binh Province, Vietnam by blasting method. After blasting, large blocks Dolomit is beaten by mechanical hammers and will be classified. The dolomite is selected and cleaned and then transported to the production area of the plant. Through the conveyor system, Dolomite is transferred to the hammer crusher. Function of hammers is beat, crush and simultaneously transfer to the jig machine to classify grain size . It ensures that the product is carefully classified for each customer’s size requirement.