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What Is The Filtering Principle of Magnetic Filter

Aug 06, 2025

Magnetic filters primarily remove ferromagnetic impurities from fluids through magnetic field attraction. Their core component is a magnetic field system composed of magnetic materials (such as neodymium iron boron). When fluid containing ferromagnetic impurities flows through, the impurities are magnetically attracted to the surface of the magnetic material, achieving a filtering effect.

 

Specific Working Principles of Different Types of Magnetic Filters

 

Conventional Magnetic Filters

Using a combination of high-coercivity magnets and filter screens, they magnetically attract micron-sized ferromagnetic contaminants. They are suitable for applications such as hydraulic systems, preventing component seizure and wear.

 

Electromagnetic Filters

When powered, they magnetize the internal filler (such as spiral steel wool), creating a high-gradient magnetic field that attracts ferromagnetic and paramagnetic impurities in the water, enabling intelligent control systems to regulate energy consumption.

 

High-Magnetic Brush Filters

Combining a filter screen with a magnetic field, they magnetize water molecules to cause impurities to precipitate, while also intercepting tiny particles and removing contaminants through backwashing.

 

Applicable Applications

 

Widely used in hydraulic systems, chemical engineering, and other fields, they can reduce iron ion content, extend equipment life, and improve system reliability.

Magnetic Return Oil Filter CLQ60x100 3

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