Kingda 10L alumina roller mill jar is precision-formed from 99% Al2O3 high-purity ceramic, delivering wear resistance and contamination-free grinding for industrial jar mills and rolling ball mills. Key Features 99% Al2O3 high-purity alumina with hardness HV 1300 Smooth glazed inner surface reduces material sticking Thick wall design for long service life under heavy load Rubber sealing ring and clamp lid prevent slurry leakage Customizable outlet port for continuous wet