Semiconductor Wafer Crystal Grinder Dust Collector from Germany
Integrated filtering and purification system attached to crystal grinders used to shape semiconductor boules to precise diameters, collecting diamond slurry and silicon dust particles from the air stream. Falls under HTS 8421.39.0115 as specialized dust collection equipment for maintaining clean air in wafer preparation environments. Essential for preventing airborne contaminants from affecting subsequent wafer processing.
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
• Provide airflow rate and filter efficiency data (e.g
• 99.999% particle removal) for classification support
• Pair with boule grinder invoices to demonstrate integral use in semiconductor process