Wafer Crystal Grinder Coolant Vacuum Pump from Japan
Vacuum pump extracting coolant slurry from crystal grinders shaping semiconductor boules for wafer production. HTS 8414.90.91.80 per statistical note for wafer preparation grinders. Maintains grinding wheel precision during diameter reduction.
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
• Coolant composition and flow rate specs matching grinder OEM
• Particle filtration rating for semi cleanroom
• Common issue: slurry pumps misclassified under 8413.70