This product series is divided into high strength or high gradient type; Fully sealed stainless steel shell construction; The end can be provided with M6*20 or M8*20 fixed hole; Length specification optional; The surface peak value of the magnetic bar is 0.3-1.1T(3000-11000 gauss); The surface peak value of strip iron removers is 0.3-0.6T(3000-6000 gauss). Suitable for all kinds of non-metallic mineral slurry or dry iron removal, especially suitable for ceramic mud or glaze slurry in addition to micron level iron impurities, can also be used for dry abrasive or chemical raw materials (ammonium nitrate powder), wood powder processing in addition to iron.