They are used for removing ferromagnetic particles from coarse dirt, oily or sticky materials. It is particularly preferable to use them as materials which could eventually cause plugging of pipes. It is suitable for removing unwanted particles of magnetic material streams containing larger particles for example. sawdust or shredded plastic. Structure is made of stainless steel airtight. The magnets are arranged on the outside of each other and not in contact with the material. After the opening of a non-magnetic separation of iron particles spontaneously waste. System height depends on the internal diameter of the existing pipe. Separators of the slip can be installed in various positions. It can be installed into the pipeline where the material is transported under pressure.