Float Zone Optical Fiber Preform Grower from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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