Czochralski Crystal Puller from China
A Czochralski crystal puller is specialized machinery used to produce extremely pure monocrystalline silicon boules by pulling a seed crystal from molten silicon. These boules are then sliced into wafers for semiconductor fabrication. Classified under HTS 8442.30.0150 as other machinery for preparing printing components, though primarily serving semiconductor boule preparation analogous to printing plate production.
Duty Rate — China → United States
Rate breakdown
Import Tips
• Verify equipment specifications match statistical notes for semiconductor crystal growth to avoid reclassification
• Provide detailed technical documentation proving use in monocrystalline boule production for valuation purposes
• Ensure proper labeling of high-temperature components to comply with hazardous materials regulations