Float Zone Optical Fiber Preform Grower from Canada
A float zone machine employs zone melting to produce ultra-pure silica rods or boules for optical fiber preforms by floating a molten zone along a polycrystalline rod. It achieves higher purity than Czochralski for low-loss fibers. Falls under HTS 8475.21.00.00 for specialized optical fiber preform production.
Duty Rate — Canada → 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
• Include process diagrams showing zone melting for fiber-grade silica to distinguish from semiconductor crystal growers
• Label as 'optical fiber preform equipment' clearly; mislabeling risks reclassification to semiconductor machinery
• Check for dual-use restrictions on high-purity melting tech under export control regulations