Diaphragm Hydraulic Accumulator from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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