User:Ecmsheff

Defintion
'Magnetic filtration' is commercial term to explain the process of extracting magnetic, para-magnetic and other contamination from liquids. The liquid to be filtered does not pass through a filter medium or a substrate so it is not 'filtration' in the strict definition of the term. The terms 'filtration' and 'filter' describes usage rather than mode of operation.

In a magnetic filtration device the contaminated liquid passes through a magnetic field. Magnetic and para-magnetic particles are attracted out of the liquid and onto the magnet, where they are held.

Applications
Magnetic filtration is typically used where a fluid is susceptible to contamination from ferrous and para-magnetic material and the contamination has a detrimental effect on the subsequent performance of the fluid.

Metal machining
Cutting fluids used in metal machining are typically filtered. Magnetic filtration removes the fragments of worked metal carried by the fluid. Typically this is ferrous material but magnetic filters also remove para-magnetic material. This is material that is not magnetic in itself but can be attracted to a magnet for example, worked stainless steel, grinding media.