311-9319 3119319 100.6mm inner diameter buffer seal of D10T2 D10T D11N D10

1. Quick Details of  seal 311-9319:

2. 311-9319 picture:

3. Service part number :

 
4. FAQ

Q: What construction machine does part number 311-9319 suit for installation?
A: This 311-9319 piston rod seal is produced for the arm hydraulic cylinder of excavator.

Q: What is the part name of 311-9319 and which spare part category does it belong to?
A: Its part name is Piston Rod Seal, and it is grouped into dynamic rod sealing spare parts for hydraulic cylinders.

Q: What raw material is used to manufacture this piston rod seal?
A: It is made of nitrile rubber, which features good dynamic resilience and stable hydraulic oil compatibility.

Q: What is the main sealing task of this piston rod seal?
A: It prevents hydraulic oil leaking outward along the reciprocating rod and sustains the cylinder internal working pressure.

Q: Where is this piston rod seal generally fitted on the excavator?
A: It is seated inside the cylinder head groove, positioned between the dust wiper seal and backup ring.

Q: What working cycle is this piston rod seal designed to endure?
A: It can handle frequent back-and-forth movements of the arm rod during digging and loading operations.

Q: What important step should we follow during installation?
A: Lubricate the seal lightly with clean hydraulic oil and avoid dragging the lip across sharp thread edges.

Q: What problem will arise if this piston rod seal gets worn or damaged?
A: Continuous oil leakage on the rod will reduce cylinder thrust and make the arm hold position poorly.

Q: Can this piston rod seal work under heavy load pressure conditions?
A: Yes, it can maintain stable sealing performance under the high pressure of the arm cylinder.

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