Magnetic barrel tumbler

A magnetic barrel tumbler comprising:

• a motor case adapted to firmly support a motor therein;
• an outer housing mounted to an upper portion of the motor case;
• a magnetic disc placed in a space defined by both the outer housing and the motor case, the magnetic disc consisting essentially of a disc plate coupled to a shaft of the motor, and a plurality of magnets attached to an upper surface of the disc plate, each of the magnets being arranged in a fashion such that those having opposite polarities face each other diametrically so that variations in magnetic field are induced during a rotation of the disc plate, wherein the disc plate of the magnetic disc is composed of a ferromagnetic material;
• a fixed plate spaced from an upper surface of the magnetic disc and fixedly mounted at an outer edge thereof to an inner surface of the outer housing;
• a polishing barrel laid on the fixed plate, the polishing barrel being provided with a protrusion at a central portion of an inner bottom surface thereof and with a chamber for containing articles to be polished and abrasives;
• and
• a lid mounted to an upper end of the polishing barrel and adapted to prevent contents of the polishing barrel from being outwardly discharged and to facilitate a replacement of the polishing barrel contents and a washing of the polishing barrel.

A magnetic barrel tumbler comprising:

• a motor case adapted to firmly support a motor therein;
• an outer housing mounted to an upper portion of the motor case;
• a magnetic disc placed in a space defined by both the outer housing and the motor case, the magnetic disc including a disc plate composed of a ferromagnetic material coupled to a shaft of the motor, and a plurality of magnets attached to an upper surface of the disc plate, the magnets being arranged in a fashion such that those having opposite polarities face each other diametrically so that variations in magnetic field are induced during a rotation of the disc plate;
• a fixed plate spaced from an upper surface of the magnetic disc and fixedly mounted to an outer edge thereof to an inner surface of the outer housing;
• a polishing barrel laid on the fixed plate for containing articles to be polished and abrasives;
• and
• a lid mounted to an upper end of the polishing barrel and adapted to prevent contents of the polishing barrel from being outwardly discharged and to facilitate a replacement of the polishing barrel contents and a washing of the polishing barrel.