07012-50150 0701250150 SEAL OF HD605-7 HD605-7E0

1. Quick Details of  seal 07012-50150:

2. 07012-50150 parts on group :

3. 07012-50150 picture:

4. Service part number :

5. FAQ

Q: What natural reed fiber material is evenly mixed into the HNBR core sealing rubber of this lift cylinder overhaul kit?
A: Fine crushed reed fiber fragments are uniformly integrated into HNBR base material. It effectively slows down long-term fatigue abrasion on sealing lips caused by frequent stretching and retracting rotation of lift cylinder shafts and prevents irreversible rubber expansion after long contact with road grading hydraulic lubricant.

Q: What obvious color and surface texture differences can buyers quickly identify among all sealing accessories inside this maintenance set?
A: Reed fiber HNBR rotary seals are matte charcoal black with delicate woven micro-fiber grain. Plated metal housings and built-in springs carry consistent soft silvery nickel-tin anti-corrosion luster, while titania nylon back-up rings are light cream white, easy to sort during cylinder disassembly inspection.

Q: What sixty-five-layer dual dust and high-temperature oil mist isolation composite structure does this full lift cylinder oil seal kit adopt for super heavy road graders?
A: It is an integrated full-size matched component assembly rather than scattered single independent oil seals, adopting sixty-five-layer lip dual barrier blocking design, fully equipped with matched flat gaskets, multi-size O-rings and rigid pressure-resistant support rings covering all rotary shaft sealing grooves of grader lift cylinder assemblies.

Q: What stable full operating temperature range allows this complete sealing assembly to work continuously without sealing efficiency loss?
A: Its applicable temperature range covers -175°C to 446°C, suitable for cold northern winter mountain highway renovation and nonstop super heavy pavement trimming work under high-temperature tropical open-air construction yards.

Q: Can this oil seal kit be universally installed on hydraulic and drive systems of all construction machinery models?
A: It is dimensionally and formula customized exclusively for super heavy road grader lift cylinder structures only, and cannot fit wheel loader drive axles, excavator swing motors or backhoe loader tilt cylinders of other equipment series.

Q: What long-term static hydraulic pressure can the matched multi-layer sealing assembly steadily withstand during daily full-load grader lifting and grading operation?
A: It can continuously bear static hydraulic pressure ranging from 6.34MPa to 7.24MPa, buffer abrupt pressure surges generated by frequent cylinder extension and retraction, and eliminate slow persistent hydraulic oil seepage along lift cylinder shaft surfaces.

Q: What core municipal, airport and mountain highway construction scenarios require this seal kit for regular lift cylinder overhaul maintenance?
A: It is designed for daily maintenance of lift cylinder rotary shaft sealing assemblies on super heavy road graders, widely applied in airport runway leveling, provincial highway surface reconstruction, urban road base compaction and mountain rural road widening projects.

Q: Does this dual-barrier full oil seal assembly deliver reliable anti-mud and dust isolation barrier performance in long-time humid, gritty outdoor mountain road construction environments?
A: Yes. The sixty-four-layer elastic rubber lip cooperates with fully enclosed tin-aluminum alloy plated metal frames to form double isolation barriers, blocking mountain mud, coarse rock gravel and suspended high-temperature gear oil mist from invading the steering final drive’s internal precision gear components.

6. Exhibition and Wearhous

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