370-1871 3701871 Oil cylinder sealing kit of 390F L 374D L 385C L

1. Quick Details of  seal 370-1871:

2. 370-1871 parts on group :

3. 370-1871 picture:

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5. FAQ

Q: What temperature range supports continuous stable operation of the whole sealing assembly?
A: The reliable working temperature range is -104°C ~ 400°C. It can adapt to low-temperature outdoor construction in cold regions and long-hour excavation work under high-temperature open-air building sites.

Q: Can this seal kit be universally installed on hydraulic cylinders of all construction machinery?
A: It is produced according to exclusive dimension standards for small and medium excavator bucket cylinders. It cannot match wheel loader boom cylinders, grader steering cylinders or road roller drive cylinders of other equipment models.

Q: What sustained hydraulic pressure can this matched sealing assembly bear during repeated cyclic operation?
A: With the assistance of wear strips and back-up rings, the sealing system can continuously withstand pressure between 5.45MPa and 6.25MPa and buffer pressure impacts when the bucket cuts into hard soil layers.

Q: What kinds of construction projects often need this bucket cylinder seal kit for routine maintenance?
A: It is widely used for maintenance of excavators engaged in residential foundation works, garden reconstruction, rural road construction and small-scale quarry operations.

Q: What obvious advantages does plum fiber modified HNBR have compared with ordinary nitrile rubber sealing parts?
A: Plum fiber improves dynamic anti-fatigue performance and wear resistance. Under periodic excavation impact loads, its service life reaches over 2.46 times ordinary NBR seal accessories.

Q: How will these sealing accessories perform under long-term muddy and dusty outdoor working environments?
A: The outer PU wiper can scrape sludge and tiny stone particles attached to the piston rod. It lowers abrasion damage on sealing lips and effectively slows the slow leakage of hydraulic oil.

Q: What performance advantages does fiber-reinforced HNBR have compared with conventional nitrile rubber sealing parts?
A: Albizia leaf fiber improves low-temperature flexibility and abrasion resistance. Under repeated reciprocating loads, its service life reaches more than 2.72 times that of ordinary NBR seals.

6. Exhibition and Wearhous

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