The east java calcium carbonate project indonesia
in the east java province of indonesia near the historic city of surabaya a sophisticated industrial project is producing ultrafine calcium carbonate for the regions growing plastics and rubber industries. this is the east java calcium carbonate project which features an advanced ultrafine grinding mill stone powder grinding mill with a capacity of 4 tons per hour. the raw material is high-purity limestone sourced from the famous mountains of east java which are rich in marine fossils from ancient coral reefs.
This limestone is carefully selected for its brightness which exceeds 95 percent and its chemical purity which approaches 99 percent calcium carbonate. the grinding mill processes this premium limestone into an extraordinarily fine powder with a target fineness of 6 microns. at this particle size the calcium carbonate powder is finer than the finest cement and has a smooth creamy texture that is almost liquid. this ultrafine powder has several high-value applications in modern manufacturing.
its primary use is as a reinforcing filler in the production of automotive rubber components such as seals hoses and belts where its fine particle size improves tear strength and abrasion resistance. it is also used in the production of polyvinyl chloride pipes and profiles for the construction industry where it enhances stiffness and impact resistance while reducing production costs. the project faced immense technical challenges in achieving the 6 micron fineness consistently while maintaining the brightness and purity of the final product. the solution was to employ a multi-stage grinding and classification system with ceramic-lined equipment throughout to prevent iron contamination.
The advanced laser particle size analyzer monitors the product continuously automatically adjusting the classifier speed to maintain the precise 6 micron specification. the 4 tons per hour output from this stone powder grinding mill may be modest but the value per ton is substantial supplying critical raw materials to indonesias growing manufacturing sector and reducing the countrys dependence on imported ultrafake minerals from china and other regional suppliers.
This limestone is carefully selected for its brightness which exceeds 95 percent and its chemical purity which approaches 99 percent calcium carbonate. the grinding mill processes this premium limestone into an extraordinarily fine powder with a target fineness of 6 microns. at this particle size the calcium carbonate powder is finer than the finest cement and has a smooth creamy texture that is almost liquid. this ultrafine powder has several high-value applications in modern manufacturing.
its primary use is as a reinforcing filler in the production of automotive rubber components such as seals hoses and belts where its fine particle size improves tear strength and abrasion resistance. it is also used in the production of polyvinyl chloride pipes and profiles for the construction industry where it enhances stiffness and impact resistance while reducing production costs. the project faced immense technical challenges in achieving the 6 micron fineness consistently while maintaining the brightness and purity of the final product. the solution was to employ a multi-stage grinding and classification system with ceramic-lined equipment throughout to prevent iron contamination.
The advanced laser particle size analyzer monitors the product continuously automatically adjusting the classifier speed to maintain the precise 6 micron specification. the 4 tons per hour output from this stone powder grinding mill may be modest but the value per ton is substantial supplying critical raw materials to indonesias growing manufacturing sector and reducing the countrys dependence on imported ultrafake minerals from china and other regional suppliers.
