the nakhon si thammarat marble powder project thailand
in the southern thai province of nakhon si thammarat a region known for its stunning temples and beautiful coastline a project is processing local marble into high-value industrial minerals. this is the nakhon si thammarat marble powder project which features an advanced ball mill stone powder grinding mill with a capacity of 14 tons per hour. the raw material is white marble from the famous deposits of the nakhon si thammarat mountain range where metamorphic processes have created some of the purest calcium carbonate in southeast asia.
the ball mill grinds this premium marble to a fine powder with a target fineness of 74 microns or 200 mesh. this specific particle size is a versatile specification that serves multiple industries simultaneously. the grinding process uses high-alumina ceramic media to prevent iron contamination ensuring that the brilliant white color of the marble is preserved in the final powder which achieves a brightness of over 94 percent.
the applications for this marble powder are diverse and essential to the thai economy. the highest quality grades are supplied to the paint industry in bangkok and the eastern seaboard where they serve as extenders and pigments in premium emulsion paints for the construction market. the powder is also used in the production of masterbatch for the plastics industry where its brightness and purity enhance the color of white and pastel plastic products. a significant portion of the production is sold to the animal feed industry as a calcium supplement for poultry and livestock.
the project faced the challenge of meeting the stringent quality requirements of different customer segments simultaneously. the solution was to design a flexible classification system that could produce multiple product grades from the same grinding circuit. after the ball mill the powder passes through a series of air classifiers that can be adjusted to separate different size fractions with each grade directed to its own dedicated storage silo. this flexibility allows the 14 tons per hour mill to serve both high-value industrial customers and bulk agricultural markets from a single integrated operation maximizing profitability and market reach.
