The version with permanent magnets are fitted with powerful and An-Isotropic hard ferrite magnets Rare earth magnets system is also available in two types: with longitudinal polar field distribution for use with low levels of iron contamination and thin mineral layers, and with lateral polar field distribution for greater material thickness and larger iron particles. The magnetic field range from 2500 to 8500 gauss is available. No maintenance.

The version with permanent magnets are fitted with powerful and An-Isotropic hard ferrite magnets Rare earth magnets system is also available in two types: with longitudinal polar field distribution for use with low levels of iron contamination and thin mineral layers, and with lateral polar field distribution for greater material thickness and larger iron particles. The magnetic field range from 2500 to 8500 gauss is available. No maintenance.