Pneumatic seals inject “vitality” into modern industry.
Pneumatic seals are a core component of pneumatic systems, small but crucial. They are responsible for creating sealed spaces in actuators such as cylinders and valves, preventing compressed air leakage, and isolating external pollutants such as dust and moisture, ensuring efficient and stable system operation. Their performance directly determines the power output accuracy, energy consumption level, and service life of the equipment.
Compared to hydraulic seals, pneumatic seals face unique challenges: the working medium is compressible air, and lubrication conditions are typically poor (especially in modern oil-free lubrication systems).Therefore, excellent low friction characteristics, low starting resistance, and superior wear resistance are the primary requirements for pneumatic seals. Common seals include Y-rings and Glyd rings for pistons, as well as rod seals and dust wipers for piston rods, which together form a tight sealing system.
In terms of material selection, polyurethane is the preferred material for pneumatic seals due to its extremely high mechanical strength, wear resistance, and low coefficient of friction. Fluororubber or Turcon composite seals are also commonly used in oil-free or high-temperature conditions.
In summary, high-quality pneumatic seals can significantly reduce energy consumption by reducing internal leakage.By ensuring smooth operation, they guarantee the repeatability and production efficiency of equipment. They are the unsung heroes enabling precise and reliable movements in automated equipment, providing a solid foundation for the “breathing” of modern industry.
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