Monocrystalline Silicon Flat Grinding Roll

Specialized cast steel roll for grinding orientation flats on silicon boules to denote resistivity and type. Falls under HTS 8455.30.0035 as ≤2,268 kg cast steel rolling mill rolls for semiconductor boule prep. Ensures accurate conductivity indication for wafer fabrication.

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.

8460.40Lower: 14.4% vs 35%

If for honing or lapping machines

Precision finishing machines have separate provisions from rolling mills.

8479.82.00Same rate: 35%

If part of complete mixing/compounding machine

If integral to boule processing lines, may classify as semiconductor machine parts.

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

Include flat angle tolerance specs (e.g

±0.5°) in technical data sheets

Comply with semiconductor cleanroom standards; provide particle emission tests

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