Float Zone Crystal Grower
This apparatus uses the float zone method to produce ultra-pure silicon crystals, rotating a molten zone along a polycrystalline rod. It is classified under 8421.19.00 as an 'other' centrifuge for semiconductor material processing.
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 used in the manufacture of semiconductor devices
Machines for semiconductor manufacture may be classified under heading 84.86.
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
• Document the centrifugal rotation function to support classification under 8421.19.00
• Be prepared to explain the difference from crystal pulling machines
• Check for any import restrictions on semiconductor manufacturing equipment
Related Products under Tariff item 8421.19.00
Centrifugal Wafer Edge Profiling Machine
This specialized centrifuge rotates semiconductor wafers to profile and bevel their edges, preventing fractures during processing. It falls under tariff item 8421.19.00 as an 'other' centrifuge, distinct from those used for filtering or purifying liquids or gases.
Compound Semiconductor Slurry Centrifuge
This centrifuge separates polishing slurry from gallium arsenide or silicon wafers after chemical mechanical planarization. It is classified under 8421.19.00 as an 'other' centrifuge for liquid-solid separation in semiconductor processing.
Czochralski Crystal Puller
This machine grows monocrystalline silicon boules using the Czochralski method, rotating and pulling a crystal from molten silicon. It is classified under 8421.19.00 as an 'other' centrifuge, as its primary function involves centrifugal rotation during crystal growth.
Gallium Arsenide Wafer Centrifuge Dryer
This centrifugal dryer spin-dries compound semiconductor wafers like gallium arsenide after chemical processing, preventing surface damage. It is classified under 8421.19.00 as an 'other' centrifugal dryer for semiconductor wafers.
High-G Centrifuge for Wafer Stress Testing
This high-G centrifuge applies extreme rotational forces to test the mechanical integrity of semiconductor wafers before device fabrication. It is classified under 8421.19.00 as an 'other' centrifuge for testing purposes.
Precision Wafer Lapping Centrifuge
This centrifugal lapping machine rotates semiconductor wafers against abrasive surfaces to achieve critical flatness. It is classified under 8421.19.00 as an 'other' centrifuge for wafer preparation.