Polisher Head Pressure Bladder
A replaceable elastomeric bladder for chemical mechanical polishing (CMP) heads that provides uniform pressure distribution across the entire wafer surface, achieving less than 1% non-uniformity. It is a part of the wafer polishing machines of tariff item 8479.89.10.
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 bladder is a general-purpose rubber article
Other articles of vulcanised rubber are classified in heading 40.16.
If imported with the polisher as a complete machine
When shipped together with the polisher, the bladder may be considered part of the complete machine.
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
• Classify as a part of the wafer polisher (8479.89.10) and provide the machine's model number
• Since the bladder is made of elastomeric material, ensure it is not classified as an article of Chapter 40
• Keep technical specifications showing its specific use in CMP heads
Related Products under Tariff item 8479.90.90
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