A magnetic drive pump, often referred to as a mag-drive pump, is a type of sealless pump that leverages the principles of magnetism to transfer fluids without the risk of leakage. Instead of a traditional direct connection between the motor and the impeller, mag-drive pumps employ a magnetic coupling. This coupling consists of an outer and an inner magnet, separated by a containment shell or canister. When the motor drives the outer magnet, the magnetic force causes the inner magnet, which is attached to the impeller, to rotate in sync. This design eliminates the need for a mechanical seal, which is often a common source of leakage and maintenance issues in conventional pumps, making mag-drive pumps an ideal choice for handling hazardous, corrosive, or valuable fluids.

The construction and material choices for magnetic drive pumps vary to cater to different applications and fluid types. Typically, the pump casing and impeller are made from robust materials such as stainless steel, polypropylene, or fluoropolymers to withstand aggressive chemicals or high temperatures. The containment shell ensures that the drive mechanism is isolated from the pumped liquid, thus increasing safety and reliability. Additionally, mag-drive pumps excel in applications where contamination must be avoided, as the sealed design ensures zero leakage and thus zero contamination. Industries ranging from chemical processing and pharmaceuticals to water treatment and food processing benefit from the enhanced safety, reliability, and efficiency that magnetic drive pumps provide.