Czochralski Puller Crucible Heating Windings
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If induction heating equipment generally
Induction furnaces/ovens specifically excluded from 8419 per chapter notes.
If insulated electrical conductors
Wiring emphasis over heating function changes Chapter 85 classification.
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Import Tips & Compliance
• 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
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