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Electrical Porcelain Bauxite

To produce the porcelain, calcined bauxite is used instead of alumina. The simultaneous addition of clay and kaolin, in each case containing more than 5% by weight of foreign metal oxide inclusions, results in a porcelain which, compared to an alumina porcelain of the same mechanical strength, can be produced at significantly lower cost. The porcelain is suitable in particular for applications for highly mechanically loaded components used in electrical insulation.



The porcelain insulator that burns by high-temperature firing from the bauxite, kaolin, feldspar and other natural minerals is widely applied to electric power industry system. Therefore, it has high requirements about the mechanical properties, electrical properties, environmental performance (cold and hot, squalidity, aging resistance, etc.). Using the bauxite as the material could meet this requirement perfectly. It has good intensity and its long-term performance could also reduce the manufacturing cost. It also has well insulativity and mechanical strength, both its rigidity and heat stability are higher than others, its hot and cold impact performance is also superior.



Most high voltage insulators producers choose calcined bauxite powder as necessary raw materials for manufacturing electrical porcelain insulators used for electric line, power station, protector and switches etc.


Advantage of Sinocean bauxite 

Best quality and competitive price.

Self-owned mines, automatic production line, strict quality control and fast delivery.

Provide free samples, or provide the products according to customers' special requirements.

High Al2O3, low Fe2O3 and low SiO2.  

High hardness and high purity.


Specification for SNPI85 calcined bauxite

Chemical Analysis              Phisycal Date

Al2O3: min 85%                 Colour: dark grey

Fe2O3: max 2.5%                Particle shape: powder

Sio2: max 7.7%                  Density: 3.80 g/cm3

Tio2: max 4.0%                   Moisture content: 0.1%


Available grain size

98% passing min at 325mes



Usually 1MT Jumbo bag

Standard exporting package for sea transportation or air delivery

Special packing requirement is acceptable

SINOCEAN Available electrical procelain bauxite

 Item name



 Al2O3 min



 Fe2O3 max



 TiO2 max



 SiO2 max









 Apparent density







 dark grey

 dark grey