PU wiper seal high pressure hydraulic pneumatic cylinder piston sealmanufacturer Hydraulic Excavator hydraulic piston oil seal

The PU dust rot is an important sealing element that is mainly used to prevent stains such as external dust, rain and frost enter the sealing mechanism, thereby protecting the internal hydraulic system and key components. It is widely used in equipment such as general hydraulic systems, machine tools, mining machinery, metallurgical machinery, standard hydraulic cylinder, general machinery and other equipment.
The main role of the PU dust ring includes:
Prevent pollutants from entering: by effectively preventing external dirts such as dust, gray sand, and rainwater from entering the sealing mechanism, protecting the viscosity of the hydraulic oil and the integrity of the internal sealing parts.
Key components: When the piston rod returns, the PU dust ring can scrape off the dirt that adheres to it to protect the sealing ring and the guidance cover from damage.
Improving the sealing effect: The dual -action PU dustproof ring also has auxiliary sealing function, which can scrape off the oil film on the surface of the piston rod and further improve the sealing effect.