filter magnet is composed of strong magnetic material with high capacity and blocking screen. Its adsorption is as ten times as the general magnetic materials, and it has the fluid flow in an instant impact or high flow velocity condition, and the ability of the micron grade ferromagnetism pollutants.It can overcome the ferromagnetic pollutants that are rushed down at high speed and big impact to be absorbed again, so as to avoid the stuck or friction wear of hydraulic components, prolong the service life of hydraulic components and hydraulic system, and enhance the reliability of hydraulic system.The center of a Filter magnet is a cylindrical permanent magnet with a cover made of non-magnetic material. The outer cover is encircled by iron rings connected by copper strips. There will be a certain amount of clearance between each hoop.