Float Zone Crystal Grower Winch Assembly from China
A winch assembly designed for float zone crystal growers that produce high-purity silicon rods for semiconductor wafers. Classified under HTS 8431.10.0010 as parts of 8425.11 capstan/winch machinery used in semiconductor boule processing. Aligns with statistical note (a)(i) for crystal growers employing float zone methods.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Provide float zone process diagrams showing winch integration to confirm principal use with 8425.11 machinery
• Label components clearly as 'semiconductor crystal grower exclusive' to prevent misclassification as general industrial parts