PURPOSE: To polish articles quickly and uniformly by generating the two types of flow motion in charged articles in a barrel vessel.

CONSTITUTION: Masses (an aggregate of articles, abrasive material, compound, water or oil etc.) are charged into a barrel 15, and its cover is closed with bolts 18. A motor 5 is next driven to rotate a driving shaft 10, a rotary frame 9 and a driven shaft 11 round the center of X-X axis, and also a barrel 15 supported on the rotary frame 9 in the same direction. A geared motor 2 with brake is driven during the above rotation to rotate the barrel 15 round the center of Y-Y axis through a center gear 13, a middle gear 27, a gear 26 and bevel gears 22, 23. Consequently the two types of high speed flow motions are generated in masses in the barrel 15 to polish articles quickly and uniformly.