Magnetic mixer and magnetic mixing system

A magnetic mixer for a liquid pouch in which flexible resin liquids to be mixed are contained, the magnetic mixer comprising:

• a driving motor;
• a rotor configured to be rotatably driven by the driving motor and comprising a plurality of permanent magnets in a circumferential direction;
• a housing surrounding the rotor and a rotation shaft of the rotor and having a lower end mounted on a side of the driving motor;
• a bonding plate comprising a driving part formed of a resin material, having an inner driving space for accommodating the rotor to be rotatable, and disposed inside the liquid pouch while passing through the liquid pouch, and a bonding part bonded around an opening formed in the liquid pouch and on an upper end of the housing;
• and
• an impeller formed of a resin material, mounted in the liquid pouch to be rotatable by the driving part of the bonding plate, and having a main body configured to be rotated by the rotation of the rotor, the main part including a plurality of blades on an outer circumferential surface thereof in the circumferential direction and a plurality of embedded permanent magnets in the circumferential direction
• wherein a pipe type bearing mounting part is provided on the driving part of the bonding plate, at least one bearing is mounted around the bearing mounting part, and an inner circumferential surface of the impeller is supported and mounted on an outer circumferential surface of the at least one bearing,
• wherein a step is provided at a boundary between the driving part and the bearing mounting part of the bonding plate, and an upper end of the bearing mounting part comprises a hook protruding outward to prevent separation of the at least one bearing.