Float Zone Crystal Grower Mechanism
A specialized hoist mechanism for the float zone method to produce high-purity silicon crystals by zone melting without crucibles. This is a part of machinery of heading 84.25, specifically designed for use in semiconductor crystal growing equipment.
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 mechanism is presented as a complete machine
Complete machines for a specific function not covered elsewhere in Chapter 84 may fall under heading 84.79.
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
• Provide documentation proving the mechanism is solely or principally used with float zone crystal growing machinery
• Ensure the hoist function is clearly described as part of the crystal growing process
• Consider whether the mechanism includes any electrical components that might affect classification
Related Products under Tariff item 8431.10.00
Boule Flattener Drive Capstan
A drive capstan for grinding flats on crystal boules to indicate conductivity type. This is a part of machinery of heading 84.25, specifically designed for use with crystal boule grinding equipment.
CMP Polisher Carrier Capstan
A capstan for chemical mechanical polishing carriers in wafer planarization. This is a part of machinery of heading 84.25, specifically designed for use with CMP polishing equipment.
Crystal Boule Grinder Capstan Drum
A rotary capstan drum for crystal grinders that shape semiconductor boules to precise wafer diameters and flats indicating conductivity. This is a part of machinery of heading 84.25, specifically designed for use with crystal grinding equipment.
Crystal Boule Grinder Hoist Assembly
A hoist assembly integrated with crystal boule grinders to precisely shape semiconductor crystal boules to wafer diameters and add conductivity flats. This is a part of machinery of heading 84.25, specifically designed for use with grinding equipment in semiconductor manufacturing.
Crystal Ingot Puller Counterweight Assembly
A counterweight system for stable pulling in semiconductor ingot growers. This is a part of machinery of heading 84.25, specifically designed for use in semiconductor crystal growing equipment.
Czochralski Crystal Puller for Wafer Production
A precision machine that pulls monocrystalline silicon boules from molten silicon using the Czochralski method, essential for semiconductor wafer manufacturing. This is a part of machinery of heading 84.25, specifically designed for use in semiconductor crystal growing equipment.