Czochralski Crystal Puller Spindle Assembly from Mexico
This precision-engineered spindle assembly is a critical part of Czochralski crystal pullers used to grow monocrystalline silicon boules for semiconductor wafers. It falls under HTS 8479.90.95.65 as a part of machines for treating metal, specifically semiconductor manufacturing equipment that processes high-purity metal like silicon.
Duty Rate — Mexico → 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
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Verify the part is specifically for semiconductor crystal growers and provide manufacturer specs linking to Czochralski process
• Include detailed technical drawings showing compatibility with wafer manufacturing equipment to avoid misclassification
• Ensure documentation proves the machine's primary function is treating semiconductor metals like silicon