Turbo Molecular Vacuum Pump Rotor Assembly from China
This rotor assembly is a critical rotating component in turbo molecular vacuum pumps used for creating high vacuum levels in semiconductor wafer processing equipment. It falls under HTS 8414.90.91.40 as a part specifically designed for vacuum pumps employed in the growth and processing of semiconductor materials like silicon wafers. The high-speed rotor generates momentum transfer to evacuate gases efficiently.
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
• Verify the part is exclusively for vacuum pumps in semiconductor processing via manufacturer specs to confirm 8414 classification
• Include detailed technical drawings and end-use statements in documentation to avoid misclassification as general machinery parts