The main advantage: THERE ARE NO WINDINGS IN PUMPS AT ALL!!!
From this main advantage another advantages follow:
no electrical isolation problems at high temperatures,
smaller overall dimensions and weight,
For feeding of traditional inductor pumps there is a need for additional rather
expensive devices - 3-phase variable transformers. For the driving of pumps basing on
permanent magnets the standard AC motors can be used.
At Institute of Physics of University of Latvia many models of pumps were tested
demonstrating their efficiency. Real pumps for eutectic alloy Pb-Bi at operating temperatures up
to 4000C have been produced and are operated successfully in liquid metal plants for
studies related to development of European Neutron Spallation Sources. Such EMIP design
concept can be used also in metallurgy for pumping metals having relatively low melting
temperatures and high electrical conductivity, such as aluminium, zinc, magnesium.