Czochralski Crystal Puller from China
A numerically controlled machine used in semiconductor manufacturing to grow monocrystalline silicon boules by the Czochralski method, involving precise pulling and rotation of a seed crystal from molten silicon. It falls under HTS 8461.90.30.80 as a numerically controlled machine tool for material processing by removing excess material through grinding and shaping during boule formation. This equipment precisely shapes semiconductor crystal growth for subsequent wafer slicing.
Duty Rate — China → United States
39.4%
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
• Verify numerical control certification and provide detailed technical specs for customs classification; ensure compliance with semiconductor export controls like Wassenaar Arrangement; common pitfall is misclassifying as testing equipment under Chapter 90