Float Zone Crystal Grower Mechanism

A specialized hoist mechanism for float zone method to produce high-purity silicon crystals by zone melting without crucibles. Classified under HTS 8431.10.00 as part of 8425 heading machinery for semiconductor boule growth per statistical notes on crystal growers.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

More Specific Codes

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Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8516.79.00.00Lower: 12.7% vs 35%

If

8479.89.65.00Lower: 20.3% vs 35%

If

8431.49.90Same rate: 35%

If

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Import Tips & Compliance

Include process diagrams showing float zone operation to link to statistical note (a)(i) for crystal growers

Label as 'semiconductor exclusive' to prevent reclassification; bulk hoists have different rates

Related Products under HTS 8431.10.00

Wafer Slicing Saw Pulley Drive

Pulley and drive components for high-precision diamond saws that slice monocrystalline boules into semiconductor wafers. Falls under HTS 8431.10.00 per statistical note (a)(ii)(B) for wafer slicing saws as parts of 8425 heading machinery.

Silicon Ingot Puller Control Pulley

Control pulley system for automated ingot pullers in Czochralski silicon growth, regulating pull speed and rotation. HTS 8431.10.00 as part of 8425 semiconductor crystal grower per statistical notes.

Precision Wafer Polisher Lift Assembly

Elevator-style lift assembly for chemical-mechanical wafer polishers ensuring surface flatness critical for semiconductor device fabrication. Covered by HTS 8431.10.00 and statistical note (a)(ii)(C) as polisher parts of 8425 machinery.

Czochralski Crystal Puller for Wafer Production

This precision machine pulls monocrystalline silicon boules from molten silicon using the Czochralski method, essential for semiconductor wafer manufacturing. It falls under HTS 8431.10.00 as a part of semiconductor processing machinery classified in heading 8425 (pulley tackle and hoists). The statistical notes confirm crystal growers and pullers are included in wafer manufacturing equipment.

Crystal Boule Grinder Hoist Assembly

Hoist system integrated with grinders to precisely shape semiconductor crystal boules to wafer diameters and add conductivity flats. HTS 8431.10.00 applies as part of 8425 machinery, matching statistical note (a)(ii)(A) for crystal grinders in wafer prep.

Semiconductor Wafer Lapping Hoist

Lifting hoist for wafer lappers that achieve ultra-flat surfaces on sliced wafers within tight dimensional tolerances for fabrication. HTS 8431.10.00 classification aligns with statistical note (a)(ii)(C) for wafer grinders, lappers, and polishers as 8425 parts.