The Drum Abrasion Tester is designed and developed according to ASTM D4058-96 Standard Test Method for Abrasion of Catalysts and Catalyst Carriers. It is a special measuring instrument for abrasion rate of granular catalysts and catalyst carriers and is widely used in petroleum, chemical, scientific research and other fields, Using high-power stepper motor drive and high-precision single-chip microcomputer control to make the work more stable and accurate speed.