Crystal Boule Grinder Air Compressor from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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