Durable hydraulic cylinder sealing element for engineering,mining,metallurgy.Wear-resistant,pressure-proof,standard and custom options.Cut costs,ensure stable operation.
Model and Size:
LBH25*33*4.5/6
| Model | Size | ||
| LBH | 25*33*4.5/6 | ||
| LBH | 28*36*4.5/6 | ||
| LBH | 32*40*5/6.5 | ||
| LBH | 45*53*5/6.5 | ||
| LBH | 50*58*5/6.5 |
HCIC hydraulic cylinder sealing element aren’t just boxed parts off a production line. We took them to real construction sites, fitted them onto working excavator cylinders, dropped them into mining loader hydraulics, and bolted them onto 24/7 running metallurgy presses. They’re built for the grittiest outdoor jobs: sudden hydraulic pressure spikes that blow cheap generic seals apart in days, nonstop piston rod friction that wears ordinary seals thin, and temperature swings from -40℃ winter freezes to 120℃ summer heatwaves. No more swapping leaky old seals every other week, no more dealing with parts that don’t fit your cylinder model, no more watching equipment break down mid-shift because of a lousy seal—these seals lock tight and keep your hydraulics running smooth for months.
We mix modified nitrile rubber and polyurethane to make these seals, a custom blend we tested dozens of times to get the right balance of flexibility and durability. Every single seal goes through three strict manual steps: precision mold casting for a perfect shape, hand-trimmed edges to fit seal grooves seamlessly, and a 24-hour pressure test to weed out tiny defects before shipping. The payoff? They’re 25% more wear-resistant than the generic seals you grab from industrial supply shops. Better yet, they don’t crack in freezing cold or soften in scorching heat—ideal for job sites with wild temperature jumps.
HCIC hydraulic cylinder sealing element use a double-lip + buffer ring setup, plus an extra anti-extrusion ring that’s a game-changer for high-pressure work. This ring stops the seal material from getting squeezed into the piston-cylinder gap when pressure spikes—a common issue that ruins ordinary seals fast. With this design, the seals handle up to 63MPa of pressure, way above the 30-40MPa range of most standard industrial hydraulics. Leaks are practically unheard of, even after months of nonstop use, so you won’t face unexpected equipment downtime mid-job.
We tracked these seals on working equipment for six straight months, and the data says it all—they run stably for over 8,000 hours without needing a replacement. That cuts down on maintenance trips and part swaps big time, saving you a ton of cash on replacement parts and repair labor costs.
HCIC hydraulic cylinder sealing element cover a full size range, from 20mm mini cylinders for light machinery up to 500mm heavy-duty cylinders for mining excavators. The standard models fit 90% of mainstream brands like Bosch, Parker, and Rexroth—no need to worry about mismatches.
If standard sizes don’t work for you, we do personalized custom seals. Just send us three key numbers: cylinder bore diameter, piston rod diameter, and hydraulic system working pressure range. HCIC tech team will tweak the mold specs to make a seal that fits your equipment perfectly.
These hydraulic cylinder seals have ISO 9001 certification, and every batch goes through third-party testing for pressure resistance and wear resistance before shipping. Customers who switched to our seals say their equipment failure rates dropped by 18%, and monthly maintenance costs went down by 20%. Lots of top engineering and mining companies stick with us for this consistent quality.
Fitting these seals is a cinch—no modifications to your original hydraulic cylinder are needed. Just remove the old worn seal, wipe the seal groove clean with a dry cloth, and pop our seal into place. No extra tools required, and the whole process takes just a few minutes.
We have a 24/7 professional after-sales team ready to help. Pre-sales, our tech staff will give you free model selection guidance based on your equipment specs. After-sales, if you run into issues like installation troubles or quality doubts, you can contact us anytime—we’ll get back with a solution within 2 hours. If the seal has quality problems within the warranty period, we’ll send a replacement for free, no hassle at all.For More details please email us "davidsong@mail.huachen.cc" or google search "HCIC hydraulic"
