Crystal Boule Grinder Air Compressor from Germany
250 kW reciprocating compressor powering pneumatic systems in crystal grinders that shape silicon boules to exact wafer diameters and flats indicating resistivity. Critical for preparing semiconductor crystals post-growth. Classified in HTS 8414.80.20.65 for mid-range power semiconductor processing compressors.
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
• Include CAD drawings showing integration with grinder to prove specialized use
• Certify air purity standards (ISO 8573) required for cleanroom semiconductor environments
• Watch for reclassification if sold without semiconductor context as general factory compressor