They do not have a filtration barrier in which to collect the contaminate but instead use a magnetic field to trap the passing ferrous particles within the filter body. Because they do not have a mesh, they are not restricted to a minimum particle size. Therefore, they can catch sub-micron particles that would escape through a conventional filter.
The downside to this type of filter is that it can only hold ferrous particles that are attracted by the magnetic field. Other contamination such as rubber wear & silicate particles will pass straight through the filter so it is often advisable to fit another hydraulic filter in the system to supplement the Magnom product.
For more information on this specialist filter or to purchase call your local branch on Gloucester: 01452 730774 Birmingham: 0121 327 2664 Durham: 0191 410 6619 Leeds: 0113 2707295 or email firstname.lastname@example.org