Czochralski Crystal Puller Compressor Valve from Mexico
This precision compressor valve is a critical part of the gas delivery system in Czochralski crystal pullers used for growing monocrystalline silicon boules in semiconductor manufacturing. It regulates high-purity argon or nitrogen flow under vacuum conditions to prevent contamination during crystal growth. Classified under 8414.90.41.55 as a part of hermetic compressors in subheading 8414.40 for semiconductor wafer production equipment.
Duty Rate — Mexico → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) 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
• Verify the part is specifically for 8414.40 hermetic compressors used in semiconductor equipment via manufacturer specs and end-use certification
• Include detailed technical drawings and bills of materials showing compatibility with crystal growers to avoid reclassification