Vibration Isolation Mount for Centrifuge from Japan
Elastomer vibration isolation mounts for semiconductor processing centrifuges preventing wafer defect transmission. Classified under 8421.91.60.00 as other essential parts for stable operation during crystal boule grinding. Tuned natural frequency below process RPMs.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify durometer ratings and chemical resistance for slurry environments
• Document as 'centrifuge-specific mounting' vs generic anti-vibration pads
• Outgassing test data required for vacuum-compatible semiconductor use