The main function of hydraulic oil filter is to filter hydraulic oil. The main sources are: mechanical impurities still remaining in the hydraulic system after cleaning, such as rust, casting sand, welding slag, iron scrap, paint, paint skin and cotton shavings, etc., external impurities entering the hydraulic system, such as dust entering through the filler port and dust ring; Impurities produced in the working process, such as fragments of seals formed by hydraulic pressure, metal powder produced by relative wear caused by movement, and colloid, asphaltene and carbon residue produced by oxidation deterioration of oil liquid, etc. After the above impurities are mixed with the hydraulic oil, they will play a destructive role everywhere along with the circulating action of the hydraulic oil, seriously affecting the normal work of the hydraulic system, such as making the small gap between the relative moving parts in the hydraulic components (in total), as well as the throttle holes and gaps stuck or blocked; Damage the oil film between relative moving parts, scratch the clearance surface, increase internal leakage, reduce efficiency, increase heat, aggravate the chemical effect of oil, make oil deterioration. According to production statistics, more than 75% of the faults in the hydraulic system are caused by impurities mixed in the hydraulic oil, so it is very important to maintain the oil clean and prevent oil pollution.
　　This article is organized by dongguan oneness filtration technology co., LTD