Due to its material properties and processing advantages, PU filter are suitable for the production of various types of filter cartridges, including the following:
Air Filter Cartridges: PU material with excellent elasticity and sealing properties, suitable for the manufacture of air filter cartridges shell or end caps. Its weather resistance (winter and summer sun protection) ensures the filter cartridge stays sealed in harsh conditions, preventing unfiltered air from entering the system. In addition, PU filter can also handle a two-layer filtration structure: larger particles are trapped by coarse filtration on the outside and fine dust is trapped by fine filtration on the inside to improve filtration efficiency.
Hydraulic Oil Filter Cartridges: PU material with oil and acid/alkali resistance, suitable for the manufacture of hydraulic oil filter cartridges skeleton or end caps. Its high strength and abrasion resistance support the filtration structure, can withstand the high pressure environment of hydraulic system, prevent filter cartridge deformation or breakage.
Dust Collector Filter Cartridges: PU filter can produce polyurethane injection-molded filter cartridges for dust filtration applications. The material can be combined with other filtration media such as glass fiber and synthetic fiber. The folding structure increases the filtration area and reduces resistance. Some designs also have self-cleaning features that use pulse recoil to remove adherent dust and extend service life.
Engineering Machinery Equipment Filter Elements
For equipment such as excavators and loaders, PU filter elements machines can produce filters suitable for their intake systems. These filters need to meet the requirements of high flow rate and high efficiency. The high temperature resistance and corrosion resistance of PU material ensure stable operation under complicated working conditions.
Foldable Filter Elements
PU filter elements machines supports the production of folding filter elements and spiral perforated tube frames. A high-temperature shaping process fixes the folds of filtration media and increases the filtration area. These filters have the characteristics of low resistance and high dust removal and are widely used in air purification and industrial dust removal.

