The PSD‑type piston rod seal is a dedicated single‑acting dynamic sealing component for hydraulic cylinder piston rod reciprocating motion. Constructed from high‑performance modified polyurethane compound, this rod seal delivers outstanding wear resistance, anti‑extrusion property and great compatibility with various hydraulic oils, ensuring stable sealing performance under continuous cyclic working conditions.
Adopting optimized sealing lip profile, the PSD‑type piston rod seal creates uniform contact pressure on the rod surface. It effectively prevents hydraulic medium leakage, and tolerates minor shaft eccentricity caused by manufacturing and assembly tolerances to avoid early seal failure. Its compact dimension matches standard installation grooves, supporting fast assembly without special tools, which improves production efficiency for cylinder manufacturers and maintenance personnel.
This sealing part performs steadily under medium‑high pressure and wide temperature range. It is widely applied in construction machinery, lifting devices, agricultural machines and multiple industrial hydraulic cylinders. Adopting correct groove dimensions and qualified rod surface roughness can greatly extend service life. As a reliable and cost‑effective sealing solution, the PSD‑type piston rod seal minimizes oil leakage failures and enhances the overall operational stability of hydraulic equipment.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
