56D-50-13221 56D5013221 RING,WEAR OF HM300TN-1 HM300-2

1. Quick Details of  seal 56D-50-13221:

2. 56D-50-13221 parts on group :

3. 56D-50-13221 picture:

4. Service part number :

5. FAQ

Q: What heavy-duty construction machine does part number 56D-50-13221 fit?
A: Part number 56D-50-13221 is made for wheel loader hydraulic cylinder piston assembly.

Q: Could you confirm the official part name and classification of 56D-50-13221?
A: The part name is piston seal ring and it belongs to piston seal ring category.

Q: What material is selected to manufacture this piston seal ring?
A: It uses bronze filled PTFE which delivers great wear resistance under high pressure.

Q: What is the main working function of this piston seal ring in hydraulic cylinder?
A: It blocks internal hydraulic oil leakage and maintains pressure difference on two sides of piston.

Q: Where is this piston seal ring assembled on the hydraulic piston?
A: It is fitted into the outer annular groove on the piston outer circumference.

Q: What are the key advantages of bronze filled PTFE for this seal ring?
A: It has low friction and strong load bearing capacity under cyclic impact loads.

Q: Can this seal ring adapt to frequent loading and unloading work of wheel loader?
A: Yes, it is designed to endure repeated load changes in wheel loader hydraulic circuit.

Q: Is this spare part suitable for wheel loader hydraulic cylinder overhaul project?
A: Yes, it is a common replacement spare part for wheel loader cylinder overhaul.

6. Exhibition and Wearhous

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