High-pressure, contamination-resistant, long-life sealing and filtration solutions for loaders, bulldozers, cranes and other heavy equipment
Construction machinery operates long-term under dust, mud, vibration, and high-load conditions. The sealing system directly determines hydraulic cylinder life and equipment uptime.
Rod surface scoring and seal wear cause hydraulic oil leakage, with repair costs reaching tens of thousands
Mine/site dust bypasses wipers, invading the hydraulic system and accelerating cylinder bore wear
Continuous operation raises hydraulic oil temperature to 80°C+, accelerating seal material aging
Breaker/compactor high-frequency vibration enlarges seal gaps, rapidly degrading sealing performance
Each operating condition corresponds to a proven product combination — not standalone sales. Full technical support from selection to installation.
AIINDUSTRY® DynoSeal hydraulic dynamic sealing system: PU piston seal + PTFE step seal rod seal + double-acting wiper + phenolic cloth guide ring. One kit for full cylinder cross-section sealing.
RotoSeal oil seal series: steel shell double-lip oil seal + V-ring axial seal. Full-node sealing for drive axles, gearboxes, and travel motors.
Yiran® heavy-duty air filter series: nanofiber media + cyclone pre-filter. 3x dust holding capacity vs conventional filters for mining/desert high-dust environments.
Every plant has unique operating conditions. Our application engineering team can visit your site for measurement, media analysis, and operating condition assessment to provide targeted seal selection and failure analysis.
Contact Application Engineers