Float Zone Crystal Grower RF Coil
A radiofrequency induction coil attachment for float zone crystal growers (heading 8429 machinery) used to melt and purify silicon rods into monocrystalline boules for wafers. It mounts directly on the grower apparatus to create the molten zone. Classified under 8431.49.9020 as an other attachment for semiconductor processing machinery.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed for general induction heating applications
Induction coils not solely for semiconductor machinery classify as electric induction apparatus parts.
If imported as standalone inductor without mounting hardware for machinery
Separate inductors fall under transformers/inductors if not attachment-specific.
If for testing or laboratory-scale equipment rather than production machinery
Lab instrument parts shift to chapter 90 provisions.
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Import Tips & Compliance
• Provide evidence of principal use with float zone systems through technical datasheets
• Label with specific voltage/frequency matching 8429 machinery to prevent misclassification
• Avoid bulk shipments without segregation, as mixed coils may trigger general electrical parts review
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