Crystal Puller Crucible Rotation Mechanism
A quartz crucible rotation drive for Czochralski pullers, ensuring uniform dopant distribution and thermal symmetry during silicon boule growth. It is specifically designed for use with crystal pullers of heading 84.65, featuring a high-temperature bellows-sealed design. This drive is a principal part for semiconductor crystal growth equipment.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the mechanism is a standard gearbox or transmission
Gears and gearing are classified in heading 84.83, not as machine parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the rotation mechanism is classified as a part of crystal pulling machines, not as a general motor
• Provide documentation showing its specific design for Czochralski pullers
• Verify if the item qualifies for preferential duty rates under trade agreements based on origin
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