Semiconductor Turbine Compressor Stage from Germany
Precision compressor stages for cleanroom gas turbines supplying 99.999% pure nitrogen to wafer processing chambers without particle contamination. Falls under HTS 8411.99.90 as parts of other gas turbines for semiconductor manufacturing environments. Multi-stage compression achieves required pressure without oil contamination.
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 particle count certification (<0.1 particles/ft³ at 0.1μm) meeting ISO Class 1 cleanroom standards
• Declare gas purity levels (6N nitrogen) and flow rates matching semiconductor tool requirements
• Include turbine mapping curves showing surge margin for wafer fab process gases