Czochralski Crystal Puller Pump from Mexico
A high-precision liquid pump used in Czochralski crystal growers to control the flow of molten silicon during monocrystalline boule production for semiconductor wafers. It falls under HTS 8413.81.0040 as an other pump specifically for semiconductor manufacturing equipment. This pump maintains stable melt levels critical for defect-free crystal growth.
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 pump specifications match semiconductor process requirements for correct subheading; provide equipment end-use documentation to avoid reclassification
• Ensure compatibility certifications for cleanroom environments to prevent customs holds