Wafer Grinder Air Bearing Chuck
A porous ceramic air bearing chuck that holds semiconductor wafers during grinding with near-zero friction and contamination, maintaining wafer flatness within 0.1 microns. This is an essential part of wafer grinder or polisher equipment, classified under parts of machinery for preparing printing components.
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 chuck is a general machine part not specific to printing machinery.
Heading 84.66 covers parts for machine-tools, which may apply if the chuck is not identifiable as a part of printing machinery.
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
• Declare the air bearing chuck as a part of grinding machinery, not as a general ceramic article
• Provide technical specifications on porosity and flatness tolerance to support classification
• Verify if the chuck is eligible for duty relief under trade agreements by providing a Certificate of Origin
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