Alumina ceramic ball

The alumina grinding balls has been widely used in ball mills as abrasive media for ceramic raw materials and glaze materials in ceramic factories, cement factories, enamel factories and glasswork owing to the extraordinarily high density, high hardness, high wear resistance. During the abrasive/grinding processes, ceramic balls will not e broken, it will not contaminate the materials to be grinded. Type: According to the content of aluminum oxide: 60-70%, 65-75%, 95%, 95% According to the sizes: Φ25mm-Φ75mm.Main SpecificationItemHigh alumina grinding ceramic ballMiddle alumina grinding ceramic ballMicro-crystal middle-aluminaCarborundum middle alumina92% Al2O395% Al2O365-75% Al2O360-70% Al2O3Al2O3 (%)≥929565-7560-70SiO2 (%)3.81320-1560-70Fe2O3 (%)0.060.050.41<0.5TiO2 (%)0.020.041.71.8Other (%)2.531.9510(g/cm3) Bulk density3.653.682.93-3.02.90-3.0(%) Water absorption<0.01<0.005<0.01<0.05Moh's Hardnes(grade)99≥8≥8Compressium strength>20002100>1000>1000(%) Abrasion0.010.00840.020.03colourWhiteWhiteYellow \ WhiteBrownRaw materialsCalcined aluminaCalcined aluminaRefined bauxite powderBauxite powderForming methodIsostatic pressingIsostatic pressingImpact briquettingHandmade