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.
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 imported as a general-purpose transmission shaft
Transmission shafts are classified in heading 84.83 when not identifiable as parts of centrifuges.
If the shaft is part of a machine performing a specific function other than centrifugation
Machines with a specific function not covered elsewhere fall under heading 84.79.
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 drive shaft is declared as a part of a centrifuge, not as a standalone machine, to avoid misclassification
• Provide technical documentation showing its exclusive use with centrifuges
• Verify whether the shaft qualifies for duty-free treatment under a free trade agreement
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.
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.
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.
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.