The palembang andesite powder project indonesia
in the city of palembang on the island of sumatra indonesia a project is transforming local andesite rock into high-quality construction materials for infrastructure development in this rapidly growing region. this is the palembang andesite powder project which features a durable high-pressure grinding mill stone powder grinding mill with a capacity of 7 tons per hour. the raw material is andesite a hard volcanic rock sourced from quarries in the nearby mountainous areas of south sumatra province.
andesite is one of the most challenging materials to grind due to its high silica content and extreme hardness. the high-pressure grinding mill uses spring pressure to exert tremendous force on the grinding rollers allowing them to crush the hardest rocks efficiently. the target fineness for this operation is 300 microns or approximately 50 mesh a relatively coarse specification ideal for use as a mineral filler in asphalt concrete and as a fine aggregate in precast concrete products.
the primary application of this andesite powder is in the construction and maintenance of roads and bridges in the palembang region including the important toll road connecting palembang to the neighboring province of lampung. when mixed with bitumen the 300 micron andesite particles fill the voids between larger aggregate stones creating a dense durable road surface that can withstand the heavy truck traffic associated with the regions coal and palm oil industries. the volcanic origin of the andesite gives it exceptional adhesion properties with bitumen resulting in a more stable and longer-lasting pavement.
the project faced significant challenges including the high humidity of the tropical climate and the need to operate reliably in an area with frequent thunderstorms and power fluctuations. the solution was to equip the mill with a comprehensive dust collection system to prevent airborne dust and to install voltage stabilizers and surge protection on all critical electrical equipment. the grinding circuit was designed with enclosed material handling systems to protect the product from moisture absorption during the rainy season. the 7 tons per hour output of this stone powder grinding mill supports local infrastructure development and reduces the need to transport heavy construction materials from distant sources lowering both costs and carbon emissions in this rapidly developing region of indonesia.
