Czochralski Crystal Puller Rotating Blades
Rotating blades designed for Czochralski crystal pullers, which are machines used in the manufacture of semiconductor boules. These blades facilitate the precise rotation and dipping of the seed crystal, a critical function in the crystal growth process. They are classified under this tariff item as other rotating blades for steam turbines, as they are not specifically for repair or remanufacture.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the blades are presented as part of a complete crystal pulling machine
Machines for the manufacture of semiconductor boules are classified under heading 84.86, which takes precedence over parts of steam turbines.
If the blades are made wholly or chiefly of metal and intended for repair or remanufacture of steam turbines
Blades specifically for repair or remanufacture are classified under this sibling item.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the blades are declared as parts of steam turbines, not as semiconductor manufacturing equipment, to avoid misclassification
• Provide detailed technical specifications to the CBSA to support the classification under 8406.90.37
• Verify if the blades qualify for duty-free treatment under any free trade agreements
Related Products under Tariff item 8406.90.37
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Stationary blades used in float zone crystal growers, which are machines for producing high-purity silicon ingots. These blades maintain precise positioning during the float zone melting process, supporting the RF coil and zone movement. They are classified under this tariff item as other stationary blades for steam turbines, not being for repair or remanufacture.
Gallium Arsenide Crystal Grinder Turbine Blades
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Monocrystalline Boule Slicer Stationary Guide Blades
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