Boule Diameter Grinder from Canada
Automated grinders that shape crystal boules to precise wafer diameters with orientation flats for conductivity indication. HTS 8454.30.00.90 statistical note (a)(ii)(A) specifically covers crystal grinders as metallurgical casting equipment.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Flat orientation specs (primary/secondary) confirm semiconductor purpose
• CNC programming for boule profiles prevents general grinder classification
• Diamond tooling value must integrate into machine duty calculation