Boule Puller Crucible Rotation Mechanism from Mexico
Servo-driven rotation drive coupling crucible speed to pull rate for uniform silicon boule diameter in Czochralski systems. Principal part for crystal puller machinery heading 8430. Classifies 8431.49.90.
Duty Rate — Mexico → 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
• Rotation speed/torque specs and crucible material compatibility required
• High-temperature lubrication certification needed
• Distinguish from generic gearboxes