The Whole machine is made from stainless steel; fast connection of roller bruch leads to disassemble easily and clean thoroughly; frequency inverter controls the speed of the motor, so it can bear big start up force and run very stable and reliable. It is not only applied to polishing capsule, tablet and eliminating the static electricity, but also applied to rejecting empty capsule, little dosage capsule, separated capsules and fragment. This machine is suitable for all sizes of capsules.