The bullet magnet filter is designed to remove ferrous contamination for example nuts, bolts and staples in a gravity pipeline to protect your equipment. Advantages of the design are no energy use, no pollution, easy installation and cleaning. At the core of the filter a bullet shaped permanent magnet assembly with a strong magnetic flux field encased in stainless steel. The bullet shape helps spread the flow of material over the magnet filter improving separation efficiency. Safety interlocks are used to avoid the door being opened accidently.