Magnetic fields achieve high retention rates. These systems can be very effective and it may also withhold non-magnetic particles if the liquid flow is stable and sufficient magnetic particles are present, which create a filter cake.

Advantages of magnetic filters; strong magnetic fields high filter cake,optimal fineness,operation without filter aids,Little maintenance due to low wearout, Low energy consumption- and investment cost.

Area of application for magnetic filter works as a pre-filter in belt filters, by reducing the number of swarf and thus reducing the consumption of the filter medium.