Czochralski Puller Seed Chuck

Rotatable seed chuck for Czochralski crystal pullers (8465), grips silicon seed crystal to initiate boule growth from molten silicon. Precision temperature-controlled design prevents thermal shock. Specific accessory under 8466.92.5050.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China4.7%+35.0%39.7%
🇲🇽Mexico4.7%+10.0%14.7%
🇨🇦Canada4.7%+10.0%14.7%
🇩🇪Germany4.7%+10.0%14.7%
🇯🇵Japan4.7%+10.0%14.7%

Alternative Classifications

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

8466.30Lower: 18% vs 39.7%

If dividing heads or chucks for general machine tools

Not principally for 8465 semiconductor equipment.

9027.90Lower: 10% vs 39.7%

If temperature-controlled components as lab instruments

If primary function deemed physical/chemical analysis.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Include seed crystal diameter specs (1-3 inches) and rotation speed capabilities

End-use certificate specifying monocrystalline silicon boule production required

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