High temperature magnetic pumps are usually composed of four main parts: motors, magnetic couplings, water cooling devices, and corrosion-resistant centrifugal pumps. Its main feature is to use a magnetic coupling to transmit power. When the motor drives the outer magnetic steel of the magnetic coupling to rotate, the magnetic field lines pass through the gap and isolation sleeve, acting on the inner magnetic steel, causing the pump rotor to rotate synchronously with the motor and transmit torque without mechanical contact. At the power input end of the pump, there is no leakage due to the liquid being enclosed in a stationary isolation sleeve without a dynamic seal. This series of high-temperature magnetic pumps creatively install a water cooling device at the bearing body to ensure that the medium entering the isolation sleeve remains at a low temperature. At the same time, the magnetic material adopts high-temperature resistant rare earth permanent magnet material, which can withstand high-temperature media below 300 degrees and maintain strong magnetic torque to achieve leak free transportation of high-temperature media.