4T-9901 4T9901 U-shaped cup connecting rod seal of 631D 631E 637E 637D

1. Quick Details of  seal 4T-9901:

2. 4T-9901 picture:

3. Service part number :

 
4. FAQ

Q: What is the part number of this piston rod seal you provide?
A: This piston rod seal is part number 4T-9901, specially developed for motor grader side shift cylinder sealing.

Q: What construction machine does seal 4T-9901 apply to?
A: Seal 4T-9901 is for motor grader, installed on the side shift hydraulic cylinder piston rod.

Q: What raw materials are used to make this piston rod seal?
A: It adopts polyurethane and nitrile rubber composite material, with excellent wear resistance and good elastic recovery.

Q: What is the main function of this piston rod seal in the hydraulic system?
A: It prevents hydraulic oil leakage and keeps dust, gravel and rainwater from entering the cylinder inner cavity.

Q: Where is this piston rod seal assembled inside the hydraulic cylinder?
A: It is placed in the gland groove of the cylinder head and contacts the polished piston rod during side shift movement.

Q: How does this seal perform under frequent side shifting operations on road construction sites?
A: It keeps stable sealing pressure and is not easy to be damaged by tiny hard particles in the working environment.

Q: What hydraulic oil is suitable for this composite piston rod seal?
A: It works well with standard anti-wear hydraulic oil widely used on road motor graders.

Q: What signs will appear when this piston rod seal reaches its service life?
A: The grader blade cannot stay at the set side position and oil seepage can be seen on the rod surface.

5. Exhibition and Wearhous

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