12x18 magnet rotor for aquarium pumps

Ferrite Pump Magnets?

Ferrite pump magnets are a type of Permanent Magnet used in pumps to generate a magnetic field. These magnets are made from a ceramic material called ferrite, which is a type of iron oxide. Ferrite magnets are known for their high coercivity, meaning they can maintain their magnetism even in high-temperature environments.

In pumps, ferrite magnets are typically used in magnetic drive pumps or magnetically coupled pumps. These pumps use a magnetic field to transfer torque from the motor to the impeller, eliminating the need for a mechanical shaft seal. The ferrite pump magnets are placed on the motor and impeller side of the pump, creating a magnetic coupling that allows the motor to drive the impeller without any physical contact.

Ferrite pump magnets offer several advantages, including:

1. Corrosion resistance: Ferrite magnets are highly resistant to corrosion, making them suitable for use in various fluids, including corrosive liquids.

2. Cost-effective: Ferrite magnets are relatively inexpensive compared to other types of magnets, making them a cost-effective choice for pump applications.

3. High temperature resistance: Ferrite magnets can withstand high temperatures without losing their magnetic properties, making them suitable for pumps operating in hot environments.

4. High coercivity: Ferrite magnets have a high coercivity, which means they have a strong resistance to demagnetization. This property ensures the magnets maintain their magnetic strength over time, ensuring reliable pump performance.

However, it's worth noting that ferrite magnets have lower magnetic energy compared to other types of magnets such as neodymium magnets. Therefore, they may not be suitable for applications that require extremely high magnetic strength.

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