Crystal Puller Centrifuge Spindle
A precision-ground spindle for driving rotors in centrifuges used with Czochralski crystal growers in semiconductor production. This spindle is a part of a centrifuge, classified under 8421.91.90 as 'Other' parts of centrifuges.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the spindle is presented with a complete centrifuge
This item covers complete centrifuges, which may be more appropriate if the spindle is not sold separately.
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 spindle is classified as a part of a centrifuge under 8421.91.90, not as a complete centrifuge
• Confirm the spindle's design for semiconductor use to support classification
• Check if the spindle qualifies for duty-free treatment under trade agreements
Related Products under Tariff item 8421.91.90
Centrifugal Dryer Basket for Wafers
A perforated titanium basket for centrifugal dryers used to remove process fluids from semiconductor wafers post-polishing. This basket is a part of a centrifuge, classified under 8421.91.90 as 'Other' parts of centrifuges, including centrifugal dryers.
Centrifuge Rotor Assembly
A replacement rotor assembly for laboratory centrifuges used in semiconductor wafer processing to separate particles from liquids. This rotor assembly is a part of a centrifuge, classified under 8421.91.90 as 'Other' parts of centrifuges.
Centrifuge Safety Shroud
A carbon fiber safety shroud containing rotor fragments in case of failure during high-speed semiconductor slurry separation. This shroud is a part of a centrifuge, classified under 8421.91.90 as 'Other' parts of centrifuges.
High-G Centrifuge Bearing Housing
An aluminum housing for precision bearings in high-G force centrifuges used for float zone crystal purification in semiconductors. This housing is a part of a centrifuge, classified under 8421.91.90 as 'Other' parts of centrifuges.
Lab-Scale Wafer Centrifuge Drive Shaft
A coupled drive shaft designed for laboratory-scale centrifuges used in R&D crystal grinding of small wafer batches. Its quick-change coupling supports rapid process changes in semiconductor research environments. Classified as other parts of centrifuges under this tariff item.
Semiconductor Centrifuge Bowl
A stainless steel centrifuge bowl used for high-speed separation in semiconductor wafer lapping slurry purification systems. It is essential for preparing ultra-flat wafer surfaces by removing particulates from the slurry. Classified as other parts of centrifuges under this tariff item.