215-9864 2159864 150mm inner diameter support ring of 365C 385B 385C

1. Quick Details of  seal 215-9864:

2. 215-9864 picture:

3. Service part number :

 
4. FAQ

Q: Can this piston rod seal fit hydraulic cylinders of all engineering equipment?
A: It is specially designed for excavator boom cylinders. It cannot be installed on grader lift cylinders or wheel loader bucket cylinders of different dimensions.

Q: What construction environments are suitable for this sealing component?
A: It works steadily in urban foundation construction and mountain excavation sites, coping with frequent boom lifting and environments with sand and muddy sewage.

Q: How is the high and low temperature adaptability of this whole sealing assembly?
A: It maintains consistent sealing performance ranging from -66°C to 364°C under long-time continuous heavy-load excavation operation.

Q: Which points should maintenance staff notice during installation procedures?
A: Keep the piston rod surface clean and smooth. Foreign particles stuck on the surface will gradually abrade the sealing lip during reciprocating movement.

Q: What hydraulic malfunctions can this piston rod seal effectively prevent?
A: It avoids external leakage of hydraulic oil and restricts seal deformation caused by frequent pressure impact when the boom rises and falls.

Q: What unique advantages does apricot fiber reinforced FKM have compared with traditional sealing rubber?
A: It delivers excellent oil corrosion resistance and thermal stability, perfectly adapting to high-frequency movement of excavator boom cylinders.

Q: What practical efficiency benefits can on-site excavator maintenance staff gain from using this fully pre-matched rod seal kit?
A: All supporting sealing accessories required for rod overhaul are pre-assembled into one complete set without separate procurement. Technicians do not need to carry scattered loose seals or repeatedly measure rod groove dimensions on site, greatly shortening cylinder repair time.

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