Crystal Puller Centrifuge Spindle from Canada
Precision-ground spindle for driving rotors in centrifuges used with Czochralski crystal growers in semiconductor production. Classified 8421.91.60.00 as other centrifuge parts for maintaining rotational balance during boule purification steps. High-tolerance machining prevents vibration-induced defects.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Supply dimensional tolerance certificates (micron-level) to confirm part specificity
• Pair with end-user letters from semiconductor fabs to prevent general machinery classification