Float Zone Crystal Growth Speed Changer
Precision speed changer for float zone method crystal growers producing semiconductor material boules. Covered by HTS 8486.40.70.00 statistical provisions for wafer manufacturing equipment. Controls zone travel speed for purity control.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with integrated testing/measuring functions
Equipment combining mechanical drive with testing classifies in Chapter 90.
If laboratory crystal growth furnaces
Lab-scale equipment classifies differently from industrial semiconductor tools.
If camshafts for crystal puller timing
Specific shaft types classify separately from speed changers.
Not sure which classification is right?
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Import Tips & Compliance
• Reference statistical note (a)(i) crystal growers explicitly in documentation
• Purity/resistivity control specs justify semiconductor classification
• Distinguish from generic lab equipment to access duty benefits
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