Diaphragm Hydraulic Accumulator from China
Diaphragm accumulators employ a flexible diaphragm for fluid-gas separation, suited for compact spaces in wafer slicing saws and polishers during semiconductor wafer preparation. This product is under HTS 8479.89.95.65 for hydraulic accumulators in semiconductor manufacturing apparatus. They maintain system pressure and compensate for leakage in precision grinding equipment.
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
• Obtain ATEX certification if for explosive atmospheres in fab cleanrooms
• Submit engineering drawings showing diaphragm design for accurate classification
• Avoid misdeclaration as general parts, which could lead to higher duties under 84.79