Crystal Boule Grinder Spindle Assembly from Japan
High-precision spindle assembly for crystal grinders that shape semiconductor boules to exact wafer diameters and grind orientation flats. Features air bearings for vibration-free operation. Classified as parts of wafer preparation equipment under 8442.40.00.00.
Duty Rate — Japan → United States
10%
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
Import Tips
• Include OEM part numbers and machine model compatibility in commercial invoice
• Certify spindle runout specs (<1 micron) to substantiate semiconductor precision classification
• Bundle with maintenance kits only if sold as complete replacement sets to avoid set classification issues