Float Zone Crystal Grower Vacuum Pump from China
Reciprocating vacuum pump powering float zone furnaces for growing high-purity silicon crystals used in semiconductor wafers. Operates at 300 kW to achieve ultra-high vacuum during zone refining. Falls under HTS 8414.80.20.65 for its power range and specific use in semiconductor material growth.
Duty Rate — China → United States
37.5%
Rate breakdown
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]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide evidence of semiconductor-specific design (e.g
• contamination-free materials) for correct chapter note application
• Document vacuum levels achieved to distinguish from industrial general-purpose pumps
• Check for export controls on high-vacuum tech under semiconductor equipment regulations