Wafer Crystal Grinder Coolant Heat Exchanger from Germany
Compact coolant-to-water heat exchanger for crystal grinders, maintaining boule grinding temperatures to precise diameters for wafer slicing. HTS 8419.90.30.00 as part of heat exchange units in semiconductor wafer preparation machinery. Prevents thermal distortion during flat grinding for conductivity indication.
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
• Specify diamond abrasive coolant flow rates in docs; ensure pressure vessel certification (ASME)
• Pitfall: classifying as machine tool part under 8466 without semiconductor context