Czochralski Crystal Puller Heat Exchanger from Japan
This heat exchanger is a critical part of Czochralski crystal growers used in semiconductor wafer manufacturing to control the temperature of the melt during monocrystalline silicon boule pulling. It falls under HTS 8402.90.0010 as a heat exchanger component for vapor generating boilers in semiconductor processing equipment.
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
Import Tips
• Verify equipment end-use certification for semiconductor manufacturing to qualify under statistical notes
• Provide detailed technical specs showing integration with crystal puller vapor systems
• Avoid misclassification as general industrial parts by documenting boule production role