Crystal Puller Rotary Mechanical Seal

Mechanical seal for Czochralski crystal puller rotation mechanisms in silicon boule production. HTS 8484.20.00.00 per statistical notes for semiconductor crystal growers. Withstands high vacuum and temperature cycles.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
πŸ‡¨πŸ‡³China3.9%+35.0%38.9%
πŸ‡²πŸ‡½Mexico3.9%+10.0%13.9%
πŸ‡¨πŸ‡¦Canada3.9%+10.0%13.9%
πŸ‡©πŸ‡ͺGermany3.9%+10.0%13.9%
πŸ‡―πŸ‡΅Japan3.9%+10.0%13.9%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8479.90.85Lower: 17.5% vs 38.9%

If parts of crystal growing apparatus

Semiconductor parts heading for boule puller components.

8456Lower: 12.2% vs 38.9%

If machine tool grinding machine parts

Machine tools for crystal boule grinders if not semiconductor-specific.

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Import Tips & Compliance

β€’ Cite Czochralski/float zone process in end-use statement

β€’ Vacuum integrity test certificates needed

β€’ Monocrystalline silicon compatibility declaration

Related Products under HTS 8484.20.00.00

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Double Mechanical Seal Arrangement

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