Wafer Grinder Vacuum Chuck

Porous ceramic vacuum chuck that holds semiconductor wafers during back grinding to ultra-thin dimensions on 8426.30 grinders. Principal part for listed machinery subheadings qualifying for 8431.49.1010.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8414.90Lower: 10% vs 35%

If vacuum pump accessory chuck

Parts of vacuum appliances not specific machinery classify under 8414.

6909.11Lower: 14.5% vs 35%

If porous ceramic plate sold separately

Articles of porcelain or similar ceramics go to Chapter 69.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify porosity grade for wafer size holding capability

Include vacuum port matching to grinder spindle

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