Carborundum Universal Ltd, a flagship company of Marugappa Group offers a wide range of Electro Minerals. As part of these products, the company offers Macro Grit Brown Fused Alumina. Being a tough, sharp abrasive it is ideally suited for grinding metals of high tensile strength. Having special thermal properties, it is widely used in the manufacture of refractory products. It ca also be used in blasting and surface hardening applications. Calcined Bauxite is heated in an electric arc furnace at temperatures over 2000°C to produce Brown Fused Alumina. The slow solidification process helps to produce blocky crystals. After that the cooled crude is crushed and separated from magnetic impurities. Then this is classified into narrow size fractions for end use.
