Rod And Piston Seals

Rod and piston seals are used together in hydraulic cylinders to control fluid flow and seal both the rod and piston areas. These seals help maintain pressure in double-acting cylinders and reduce internal and external leakage. Rod and piston seals are typically made from NBR, PU, HNBR, or PTFE, offering excellent wear and pressure resistance. They are widely applied in construction machinery, mobile hydraulics, and industrial equipment. Choosing the right rod and piston seals ensures stable performance and reduces system failures.

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Symmetrical U-Cup
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Symmetrical U Cup
The Symmetrical U Cup is a popular System Seals design used in standard duty applications. Its symmetrical design creates equal seal force across both seal lips. This gives the seal the capability to function as both a piston seal and rod seal or alternatively to seal dynamically on both the outside and inside diameters. This feature is often appreciated when reduced product inventories are desired. Manufactured in a variety of materials and sizes from 6 mm to 1600 mm in standard or custom diameters.
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