8406.90.70.00/Czochralski Crystal Puller Rotating Blade/Japan

Czochralski Crystal Puller Rotating Blade from Japan

A high-precision rotating blade used in Czochralski method crystal growers to facilitate the pulling and rotation of monocrystalline silicon boules during semiconductor wafer production. It falls under HTS 8406.90.70.00 as a rotating blade specifically designed as a part for crystal pullers classified as vapor turbines in semiconductor manufacturing equipment. The blade ensures uniform crystal growth by maintaining precise rotational speeds under high-temperature conditions.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Verify classification as semiconductor manufacturing equipment via statistical note (a)(i) with detailed technical specs and end-use certificates

• Include material composition (e.g

• high-temperature alloys) and OEM compatibility docs to avoid reclassification as general machinery parts