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Czochralski Crystal Puller from Germany

A high-power vacuum pump system used in Czochralski crystal growers to produce monocrystalline silicon boules exceeding 746 kW for semiconductor wafer manufacturing. This equipment maintains ultra-high vacuum conditions during the crystal pulling process to ensure purity and quality of semiconductor materials. Classified under 8414.80.20.75 as a vacuum pump integral to semiconductor processing exceeding the power threshold.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter

Import Tips

• Verify power rating documentation exceeds 746 kW with manufacturer specs to avoid reclassification to lower power subheadings

• Include detailed end-use statements confirming semiconductor manufacturing application for statistical note compliance

• Prepare for CBP scrutiny on vacuum pump integration; provide assembly diagrams showing non-separability from crystal grower