Crystal Grinder Pneumatic Compressor Cylinder from Canada
Cylinder housing for hermetic pneumatic compressors powering the grinding spindles in crystal grinders that shape semiconductor boules to precise wafer diameters and flats. Provides contamination-free compressed air for high-speed precision grinding. Under 8414.90.41.55 as part of 8414.40 compressors for wafer preparation equipment.
Duty Rate — Canada → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Include flat orientation specs linking to conductivity/resistivity marking requirements in statistical notes
• Certify cylinder materials for semiconductor cleanroom use (no particle generation)
• Prevent 8414.80 classification by proving hermetic compressor design