the lampung calcium carbonate project indonesia
in the lampung province at the southern tip of sumatra indonesia a project is processing local limestone into industrial minerals for the regions growing manufacturing sector. this is the lampung calcium carbonate project which features an advanced ball mill stone powder grinding mill with a capacity of 10 tons per hour. the raw material is high-purity limestone from deposits in the lampung highlands where extensive limestone formations provide an abundant source of calcium carbonate.
the ball mill grinds this limestone to a fine powder with a target fineness of 45 microns or 325 mesh. this fine specification is essential for applications requiring high surface area and rapid reactivity. the grinding process uses a combination of steel balls and ceramic media to achieve the desired fineness while the mill is equipped with a closed-circuit classifier that returns oversize material for further grinding ensuring a consistent product.
the applications for this fine calcium carbonate powder are diverse and essential to the regional economy. the primary market is the ceramics industry in the lampung area where the powder is used as a flux in the production of floor and wall tiles for the indonesian construction market. the fine particle size ensures uniform melting during the ceramic firing process creating a smooth homogenous body with excellent mechanical properties. the powder is also supplied to the plastics industry where it serves as a functional filler in polyvinyl chloride pipes and profiles and to the paint industry as an extender pigment in emulsion paints.
the project faced the challenge of competing with established producers on the island of java while serving a developing industrial base on sumatra. the solution was to focus on quality and service offering a consistently high-quality product with technical support and just-in-time delivery to local manufacturers. the 10 tons per hour mill was designed with flexibility in mind allowing rapid changeover between different product grades to serve multiple market segments from a single operation. this stone powder grinding mill project in lampung has helped to industrialize the province and reduce its dependence on manufactured goods from across the sunda strait.
