Crystal Puller RF Heating Coil from Japan
Radio frequency induction coil for melting silicon in float zone crystal pullers under 8425. Part in 8431.10.0090 provides zone-refined purity. Water-cooled copper construction for high-power operation.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.94.4315%Parts of passenger vehicles and light trucks that are products of Japan as provided for in subdivision (l) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent as provided for in subdivision (m) of U.S. note 33 to this subchapter.
9903.74.110%Articles as provided for in subdivision (l) of U.S. note 38 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 RF frequency (typically 450kHz) and power rating; include cooling channel specs
• Pitfall: classification as transformer under 8504