195-63-42461 1956342461 PACKING OF D155A-1 D355A-3

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5. FAQ

Q: What construction working environments suit this piston seal ring well?
A: It adapts to open-air earthmoving and mining sites, coping with continuous tension adjustment and environments full of dust and fine gravel.

Q: How is the high-low temperature resistance performance of this sealing assembly?
A: It maintains reliable sealing capacity within -75°C ~ 369°C under long-period continuous heavy-load bulldozer operation.

Q: What preparation work should maintenance technicians finish before installation?
A: Polish and thoroughly clear metal debris inside the cylinder. Tiny scratches will wear the sealing surface and shorten service life significantly.

Q: What hydraulic failures can this piston seal ring effectively avoid during operation?
A: It blocks internal cross-leakage of hydraulic oil inside the cylinder and prevents seal distortion caused by pressure difference on both sides of the piston.

Q: What core performance merits does walnut fiber reinforced HNBR have compared with conventional nitrile rubber?
A: It owns outstanding anti-fatigue performance and friction stability, suitable for long-term reciprocating movement of bulldozer tension cylinders.

Q: What engineering projects commonly require replacement of this piston seal ring?
A: It serves routine maintenance of hydraulic cylinder piston sealing assemblies on medium crawler excavators, widely used in urban infrastructure, highway subgrade construction, small quarry loading and residential foundation excavation projects.

6. Exhibition and Wearhous

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