Czochralski Crystal Puller Mechanism from Japan
This precision-engineered pulling mechanism is a key part of Czochralski crystal growers used to produce monocrystalline silicon boules for semiconductor wafers. It falls under HTS 8473.50.9000 as a part equally suitable for semiconductor manufacturing machines in headings 8470-8472. The component controls the rotation and extraction rate during crystal growth.
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 compatibility documentation showing use with 8471 machines; obtain end-user certificates for semiconductor applications; ensure BIS export control compliance if from controlled countries