The magnetic filter is a combination of filter screen and strong magnetic material, which has great coercivity, and its adsorption capacity is ten times better than the general magnetic materials. The magnetic filter can adsorb the micron level ferromagnetism pollutants even from the instantaneous flow impact or high velocity flow. Besides, it can overcome the situation that the ferromagnetism pollutants are adsorbed again, which avoids the block of hydraulic components or the attrition of friction couples, prolonging the service life of the hydraulic components and hydraulic system, and enhancing the reliability of the hydraulic system. Its center is a cylindrical permanent magnet, and the magnet’s external cover is made of non-magnetic material. Outside the cover are a number of hoops, which are connected by copper strips, and maintaining a certain gap between each ring. When the iron magnetic impurity through the iron ring gap, it will be adsorbed on the iron ring, which plays the role of filtering. In order to clean easily, the ring is divided into two halves, when impurity blocks the clearance, the hoops can be removed for cleaning, and then loaded on repeated use.
