Czochralski Crystal Puller Pump from Germany
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 — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) 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