Float Zone Crystal Grower Backup Roll from Japan
Cast steel backup roll for float zone crystal growers used to produce high-purity silicon ingots for semiconductor wafers. Classified under HTS 8455.30.0035 due to its role in supporting material flow in rolling mill-like processes for monocrystalline semiconductor production, with weight under 2,268 kg. Ensures stability during zone refining without introducing impurities.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Include float zone process diagrams in documentation to justify rolling mill classification
• Check for anti-dumping duties on steel rolls; obtain origin certificates early
• Avoid mislabeling as general machinery parts, which triggers different valuation methods