Gas-Charged Piston Accumulator for Wafer Polishers from China
Specifically designed gas-charged piston accumulators for maintaining consistent pressure in semiconductor wafer lappers and polishers during surface flattening. Classified in HTS 8479.89.95.65 under hydraulic accumulators for wafer preparation equipment. Critical for achieving dimensional tolerances in semiconductor fabrication.
Duty Rate — China → United States
37.5%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide cleanroom compatibility certs (ISO 14644) for fab imports
• Detail gas type (N2 typical) in commercial invoice
• Watch for reclassification if shipped pre-charged with hazardous gases