The Achilles Heel of Gas Springs
The core of any gas spring is compressed nitrogen. The only thing keeping that high-pressure gas inside the steel cylinder is a small rubber seal wrapped around the moving piston rod. When that seal fails, the strut dies. This is why multi-lip NBR sealing is a revolution in strut durability.
Why NBR?
Nitrile Butadiene Rubber (NBR) is highly resistant to hydraulic oils and wide temperature fluctuations. However, standard single-lip seals can eventually allow microscopic amounts of gas to escape with each stroke, especially if dust gets on the rod.
The Multi-Lip Advantage
By engineering a seal with multiple contact points (lips), we create redundant barriers against pressure loss. The outer lip acts as a dust wiper, keeping grit away from the internal pressure chamber. The inner lips maintain a perfect hermetic seal around the micro-polished rod, dramatically extending the operational lifespan of the gas spring.
The Yueli Quality Difference
500h Salt-Spray Tested
QPQ & Electrophoresis surface treatment for extreme anti-corrosion.
50,000-Cycle Fatigue
Multi-lip NBR sealing ensuring a 5-10 year lifespan without leaking.
ISO/TS 16949 Certified
Manufactured in our Guangzhou facility under strict automotive QC standards.
Need a Replacement or Custom Gas Spring?
Whether you need an exact OEM replacement or a custom stroke and force configuration, Yueli Springs is the source factory you can trust.
For the fastest quote, please send us:
- OEM Part Number (if known)
- Extended & Compressed Length
- Force (Newtons)
- End Fittings (Ball socket, clevis, eyelet)
- Estimated Quantity