Crystal Boule Grinder from Japan
Crystal boule grinders precisely grind semiconductor boules to exact diameters and add orientation flats indicating conductivity type. Under HTS 8442.30.01 as apparatus for preparing printing cylinders or plates from semiconductor materials.
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
• Document grinding precision tolerances (e.g
• ±0.1mm diameter) for customs review
• Ensure machine includes flat-grinding capability as per statistical note requirements
• Avoid reclassification by specifying semiconductor boule use, not general metal grinding