Czochralski Puller Crucible Heating Windings from Japan
Induction heating windings surrounding graphite crucibles in Czochralski crystal pullers for silicon melting at 1420°C. Core temperature treatment component per statistical note (a)(i). Classifies under 8419.90.95 machinery parts.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Certify windings for ultra-high vacuum/argon atmosphere operation
• Provide power-frequency specs matching CZ puller electrical systems
• Include contamination analysis reports for polysilicon purity maintenance