Crystal Grinder Post-Process Cooling Zone from Japan
Controlled cooling section of nonelectric furnaces following crystal boule grinding, preventing thermal shock in semiconductor material preparation. Under HTS 8417.90.00.00 as industrial furnace parts. Maintains precise cooling rates for crystal integrity.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Document controlled cooling profiles (10-50°C/min); specify integration with grinding equipment; avoid classification as HVAC components