Patent ID: 7871307

Claim:
A fluid barrel-polishing device comprising: a cylindrical fixed tank (1) and a turntable (2) that is located at the bottom of the tank (1) with a gap (3), wherein the gap allows the turntable to rotate horizontally by a first rotating mechanism; the turntable includes an inner, rotatable cylinder (4) that is rotatably placed coaxially on the center of the rotation of the turntable (2) the inner cylinder being rotated by a rotating means, and wherein workpieces and media are thrown in the fixed tank (1) and the turntable (2) is rotated horizontally by said first mechanism and the inner cylinder is rotated relative to the turntable by said rotating means, the workpieces and the media circulating and forming themselves into a mass (M) and thereby the workpieces being polished.