Czochralski Crystal Puller Grinder
A precision grinding machine used to grind semiconductor crystal boules produced by the Czochralski method to exact diameters for wafer slicing. It processes solid mineral substances, qualifying as a grinding machine under this tariff item.
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 grinder is integrated into a crystal pulling machine
Machines performing a specific function in semiconductor production may fall under 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
• Clarify that the grinder is not used for pulling crystals but for grinding boules, avoiding classification under heading 84.86
• Provide a letter of explanation to CBSA detailing the machine's function
• Ensure compliance with Canadian electrical safety standards if the grinder includes electrical components
Related Products under Tariff item 8474.20.00
boule Crystal Diameter Grinder
An automated grinder designed to shape semiconductor boules to uniform diameter specifications, ensuring consistent wafer yield. It processes solid mineral substances such as silicon crystals, which falls under the scope of crushing or grinding machines for mineral materials.
Crystal Ingot Slicing Pre-Grinder
A pre-grinding machine that prepares silicon ingots before multi-wire saw slicing into wafers. It ensures uniform slicing and higher wafer quality by grinding the solid mineral ingot, fitting the definition of a grinding machine for mineral substances.
Diamond Wafer Grinding Machine
A high-precision grinder using diamond abrasives for initial silicon wafer backgrinding, reducing wafer thickness from 700μm to less than 100μm. It grinds solid mineral wafers, fitting the scope of grinding machines for mineral substances.
Float Zone Crystal Boule Grinder
A grinding apparatus for float zone monocrystalline semiconductor boules, creating precise flats indicating resistivity. It grinds solid mineral substances, qualifying as a grinding machine under this tariff item.
Gallium Arsenide Crystal Grinder
A specialized grinder for gallium arsenide compound semiconductor boules, grinding to precise diameters and flats. It processes solid mineral substances, fitting the definition of a grinding machine for minerals.
Handheld Portable Ore Grinder
A battery-powered handheld grinder for small-scale mineral ore sample crushing in field geology. It is a portable grinding machine for solid minerals, fitting the scope of this tariff item.