The rotary kiln barrel can rotate with a certain gradient from high to low. Raw meal is poured from high (kiln tail) to low (kiln head). The speed can be adjusted. The rotary kiln can move in circles and from high to low. The bauxite produced has high yield, uniform heating.The shaft kiln is heated

Brown fused alumina shows blue after calcination at 1350℃ temperature. The impurities existed in the grains will be separated out & vaporized . The surface of each particle changes coarser, improves the hydrophilicity greatly. After 1350℃ calcinations ,cracks from crushing and crystal cooling proces

SEPPE Calcined Brown Fused Alumina is calcined at the high temperature, and with the anneal treatment.

High temperature calcined brown fused alumina/high heating brown fused alumina is the processing with brown fused alumina above in high temperature heating.The single crystal of brown fused alumina is increased and polycrystal of brown fused alumina is decreased.

Brown Fused Alumina is produced by the smelting of Calcined Bauxite in an electric arc furnace at temperatures greater than 2000°C. A slow solidification process follows the fusion, to yield blocky crystals.

Brown Fused Alumina is fused and crystallized under the high temperature of above 2250°C with high quality abrasive bauxite as raw material.It is characterized by good self-sharpening and high grinding ability. Brown Fused Alumina can produce ceramic grinding wheel ,resinoid grinding wheel.And BFA could be used for abrasive、sandblasting.

Low Heat-treated:Low temperature treatment enhances the toughness of abrasive grain, also improves cleanliness.Heat-treated abrasive materials can be used for the fabrication of grinding wheels and coated abrasives.

Brown Fused Alumina, the name is also called Brown corundum.The main chemical composition of brown fused alumina is AL2O3. Because of its good grinding performance, wide application range and low price, so that it is used widely.