Czochralski Crystal Puller Heating Chamber
A graphite or molybdenum heating chamber used in Czochralski crystal growers for pulling monocrystalline silicon boules in semiconductor manufacturing. This chamber is a critical part of the non-electric furnace, providing the high-temperature environment needed for crystal growth.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the heating chamber is presented with other Czochralski crystal growing equipment as a complete machine
Machines for the manufacture of semiconductor devices, including crystal growers, are classified in heading 84.86.
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
• Declare the heating chamber as a part of a non-electric furnace, not as a standalone heating device
• Be prepared to provide evidence of its use in Czochralski crystal growth, as CBSA may verify the end-use
• Check if the graphite or molybdenum material requires any special import permits
Related Products under Tariff item 8417.90.00
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A controlled cooling section for non-electric industrial furnaces, designed to prevent thermal shock in semiconductor materials after crystal boule grinding. It functions as an integral part of the furnace, regulating post-process cooling to ensure material integrity.
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