Used Float Zone Crystal Grower from Mexico
A used float zone furnace for growing high-purity silicon crystals by melting a polycrystalline rod without a crucible. It aligns with statistical note (a)(i) for crystal growers in semiconductor wafer prep, classified as used machinery under 8439.10.0090 for pulp-making processes involving fibrous cellulosic semiconductor substrates.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide evidence of operational hours (>1000) to confirm 'used' status and prevent new import duties
• Label with clear 'Used Industrial Machinery' markings for customs to avoid valuation disputes
• Check for hazardous material certifications from prior silicon doping processes