Permanent Magnet Water Pump

The heart of a Permanent Magnet Water Pump is its rotor, which contains powerful permanent magnets—typically made of rare earth materials like neodymium. These magnets can degrade if exposed directly to moisture, chemical vapors, or corrosive substances. To protect them, manufacturers encase the rotor in corrosion-resistant sleeves or isolation barriers, such as stainless steel or composite materials.