NC Crystal Boule Grinder from Germany
Numerically controlled grinding machine that shapes silicon crystal boules to exact diameters and grinds orientation flats indicating conductivity type. Classified under HTS 8461.50.4050 for NC metal-removal machine tools used in semiconductor crystal preparation per statistical notes. Critical for achieving wafer-ready boule specifications.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide boule diameter specs (150-450mm) and flat grinding documentation to confirm semiconductor classification
• Label as 'for semiconductor crystal growers/pullers' to distinguish from general metalworking grinders
• Check for dual-use classification requiring BIS export licenses due to precision tolerances