518-5134 5185134 Hydraulic cylinder seal kit of MH 345C L 374F L 374D L

1. Quick Details of  seal 518-5134:

2. 518-5134 parts on group :

3. 518-5134 picture:

4. Service part number :

 
5. FAQ

Q: What material is adopted for the core dynamic sealing components within this cylinder seal kit?
A: The vital piston and rod seals adopt camphor fiber reinforced HNBR elastomer. This kit is equipped with PU dust wiper rings, graphite molybdenum filled PTFE wear strips and POM back-up rings matching all standard sealing grooves of loader lift cylinders.

Q: How can purchasers distinguish different sealing parts via visual characteristics?
A: HNBR main seals are low-gloss deep black with fine compact texture; PU wiper rings are chestnut brown; PTFE wear strips are ivory white; POM back-up rings are silver grey. All components are precisely molded with smooth rounded edges.

Q: What working motions and environments is this cylinder seal kit designed to adapt to wheel loader lift cylinders?
A: This set of seals fits repeated rising and falling movements of the loader lifting arm. It prevents hydraulic oil leakage and stops sediment intrusion during bulk material loading, stockpile sorting and yard transportation operations.

Q: What temperature range supports long-term stable running of the whole sealing assembly?
A: Reliable working temperature ranges from -96°C to 392°C. It adapts to low-temperature outdoor material handling and continuous shift work under high-temperature open-air stockyards.

Q: Can this seal kit be universally mounted on hydraulic cylinders of all construction machinery?
A: It is manufactured with exclusive dimensional standards for large wheel loader lift cylinders. It cannot fit excavator boom cylinders, motor grader steering cylinders or road roller drive cylinders of other equipment models.

Q: What sustained hydraulic pressure can this matched sealing assembly withstand during repeated cyclic operation?
A: Assisted by wear strips and back-up rings, the sealing system can continuously bear pressure between 5.25MPa and 6.05MPa and ease pressure fluctuations when lifting heavy bulk materials.

Q: What kinds of work sites usually require this lift cylinder seal kit for routine maintenance?
A: It is widely applied for servicing loaders operating in quarries, cement mixing stations, port freight yards and construction waste recycling bases.

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.

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