Czochralski Crystal Puller from Germany
A specialized centrifuge apparatus used in semiconductor manufacturing to grow monocrystalline silicon boules by pulling crystals from molten silicon via the Czochralski method. It falls under HTS 8421.39.0115 as dust collection and air purification equipment because it incorporates integrated filtering systems to remove impurities and particulates from the inert gas atmosphere during crystal growth. This ensures ultra-clean conditions essential for high-purity semiconductor production.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Verify equipment includes certified HEPA or ULPA filters for gas purification to qualify under this subheading; provide manufacturer specs
• Include end-use documentation proving semiconductor manufacturing application to avoid reclassification