311-9318 3119318 Hot Selling Construction Machinery Parts 795F AC 797B

1. Quick Details of  seal 311-9318:

2. 311-9318 picture:

3. Service part number :

4. FAQ

Q: What structural feature does this piston seal own for assembly?
A: Solid closed full-ring design without any split notch, precisely manufactured to fit fully enclosed piston grooves.

Q: Can custom pigment or reformulated raw material be customized for large long-term orders?
A: Standard inventory keeps natural inherent color; bespoke material ratio can be negotiated only for fixed bulk cooperation orders.

Q: What practical performance difference between apricot PU and smoky gray PTFE layer?
A: Talc-glass filled gray PTFE enhances anti-grit ability against dirty hydraulic oil; apricot PU supplies elastic compression to avoid inner fluid leakage.

Q: Will long-time continuous high-temperature operation cause seal surface fading or swelling?
A: Anti-thermal aging agent is added into raw materials, slight surface darkening happens naturally without size variation or sealing failure.

Q: Which construction machinery is this piston seal exclusively applicable to?
A: Specially produced for small wheel dumpers and medium vibratory compactors equipped with 3304/3306 series diesel engines.

Q: How to tell apart piston seal ring and conventional skeleton shaft oil seal?
A: This seal moves back and forth inside cylinder together with piston; skeleton oil seal is fixed on end housing for rotating shaft dynamic sealing.

Q: Is single separate ring purchase available rather than whole bulk packaging?
A: Single-piece spot stock supply is supported, bulk purchase gains more competitive unit price for periodic equipment maintenance.

5. Exhibition and Wearhous

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