Wafer Grinder Flange Holder
A custom flange holder attachment securing wafers during back-grinding to target thickness in semiconductor preparation. It is a special attachment for grinding machines of heading 84.64, which covers equipment for working stone, ceramics, and similar materials, and is classified under tariff item 8466.30.00.
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 imported with the wafer grinder as a complete unit
Machines for grinding semiconductor wafers are classified in heading 84.86, and the flange holder may be considered a part of that machine.
If the item is a general-purpose flange holder
Other parts for machines of headings 84.56 to 84.65 may fall under this heading if not a special attachment.
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 flange holder is presented separately from the grinder to qualify under 8466.30.00 as a special attachment
• Provide technical specifications to CBSA demonstrating the item's specific use with back-grinding machines
• Check if the item is eligible for duty relief under the Customs Duty Waiver for semiconductor manufacturing equipment
Related Products under Tariff item 8466.30.00
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An angle head special attachment for machining centers that redirects spindle axis to 90 degrees, enabling access to undercuts and deep cavities without repositioning. It is a special attachment for machines of headings 84.56 to 84.65.
Automatic Pallet Changer Interface
A special attachment interface kit for horizontal machining centers enabling unmanned 8-pallet changes. It is a special attachment for machines of headings 84.59 to 84.61, which include machining centers for working metal, and is classified under tariff item 8466.30.00.
Band Saw Resaw Guide Attachment
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Boule Diameter Grinder Indexing Head
An indexing head attachment for grinders that achieve precise boule diameters for standard wafer sizes (e.g., 300mm). It is classified under tariff item 8466.30.00 as a special attachment for wafer preparation equipment.
CNC Dividing Head for Milling Machines
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CNC Machine Rotary Table Attachment
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