The NMY‑type piston rod seal is a single‑acting dynamic hydraulic sealing component specially developed for reciprocating piston rod of hydraulic cylinders. Manufactured from modified polyurethane material, this rod seal features excellent wear resistance, anti‑extrusion capacity and good hydraulic oil compatibility, maintaining consistent sealing performance under long‑time cyclic operation.
Designed with precision‑tuned sealing lip structure, the NMY‑type piston rod seal forms well‑distributed contact pressure against the rod surface. It effectively blocks hydraulic oil leakage outward, and can adapt to slight shaft eccentricity brought by machining and assembly tolerances. Its compact physical size fits standard seal grooves perfectly. Operators can finish installation rapidly without special tools, raising assembling efficiency for cylinder producers and maintenance teams.
This seal runs reliably under medium‑high pressure conditions and covers a wide working temperature range. It is extensively deployed in construction machinery, lifting equipment, agricultural hydraulics and various industrial hydraulic cylinders. Strict compliance with groove size requirements and proper rod surface roughness will maximize its service cycle. As a practical and economical sealing choice, NMY‑type piston rod seal reduces oil leakage troubles, cuts equipment breakdown risks and strengthens the whole hydraulic system’s operating stability.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
