519-1485 5191485 sealing kit of 390D L 390F 390F L

1. Quick Details of  seal 519-1485:

2. 519-1485 parts on group :

3. 519-1485 picture:

4. Service part number :

 
5. FAQ

Q: What movement features and work environments is this cylinder seal kit designed for wheel loader tilt cylinders?
A: This set of seals adapts to frequent forward and backward swinging motion of the loader bucket. It prevents hydraulic oil leakage and avoids mud infiltration during bulk material loading, material dumping and stockpile sorting work.

Q: What temperature range ensures continuous stable operation of the whole sealing assembly?
A: The stable working temperature ranges from -94°C to 390°C. It can cope with low-temperature material handling and all-day operation under high-temperature open storage yards.

Q: Can this seal kit be universally fitted to hydraulic cylinders of all construction machinery?
A: It adopts exclusive dimension standards for medium-large wheel loader tilt cylinders. It cannot be used for excavator arm cylinders, motor grader lift cylinders or road roller steering cylinders of other equipment types.

Q: What continuous hydraulic pressure can this matched sealing assembly withstand during repeated cyclic operation?
A: With the cooperation of wear strips and back-up rings, the sealing group can continuously bear pressure between 5.20MPa and 6.00MPa and buffer pressure surges when the bucket dumps heavy materials.

Q: What kinds of working sites often need this tilt cylinder seal kit for regular maintenance?
A: It is widely used to maintain loaders working at sand quarries, aggregate yards, concrete batching plants and construction waste transfer stations.

Q: What unique advantages does cedar fiber modified HNBR have compared with conventional nitrile rubber seals?
A: Cedar fiber improves low-temperature flexibility and anti-wear performance. Under periodic alternating tilt loads, its service life exceeds 2.36 times ordinary NBR sealing spare parts.

Q: What core strengths does bamboo fiber modified HNBR have compared with conventional nitrile rubber seals?
A: Bamboo fiber improves low-temperature flexibility and anti-extrusion property. Under periodic steering alternating loads, its service life exceeds 2.40 times ordinary NBR sealing spare parts.

6. Exhibition and Wearhous

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