The UPH‑Type piston & tie‑rod dual‑purpose seal is a multi‑functional dynamic hydraulic sealing element applicable for both piston and tie‑rod positions, widely adopted in construction machinery, hydraulic cylinders, injection molding equipment and general industrial hydraulic systems. Manufactured from high‑performance polyurethane elastomer materials, this UPH dual‑purpose seal exhibits outstanding wear resistance, extrusion resistance and stable elastic recovery under high‑frequency reciprocating motion.
Optimized asymmetrical lip structure delivers even contact pressure whether installed in piston grooves or tie‑rod grooves. It effectively blocks hydraulic medium leakage and withstands cyclic pressure shocks in heavy‑duty working conditions. Thanks to its dual‑purpose design, the same seal can meet piston sealing and rod sealing requirements, simplifying spare parts classification and lowering inventory costs for equipment maintainers.
The UPH‑Type seal performs reliably across a wide pressure and temperature range and maintains good compatibility with mineral hydraulic oil. It minimizes stick‑slip during frequent extension and retraction, ensuring smooth cylinder operation. It matches standard seal grooves for fast installation with no extra machining required. Superior sealing capability reduces hydraulic system failure risks and cuts downtime and component replacement expenses. Custom sizes and material options are available to satisfy varied technical specifications for global industrial purchasers.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
