Czochralski Crystal Puller Heater Element from China
A graphite or molybdenum heater element used in Czochralski crystal growers to melt polysilicon for producing monocrystalline semiconductor boules. It falls under HTS 8486.90.00.00 as a part of semiconductor boule manufacturing equipment specified in the statistical note for crystal growers and pullers.
Duty Rate — China → United States
25%
Rate breakdown
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify compatibility with specific crystal grower models from manufacturers like Kayex or PVA; ensure material certificates for high-purity graphite/molybdenum; common pitfall is misclassification as general heating elements under 8516