Used Czochralski Crystal Puller
A rebuilt machine tool used to grow monocrystalline silicon boules via the Czochralski method by precisely pulling and rotating a seed crystal from molten silicon. It falls under HTS 8461.90.60.40 as a used or rebuilt machine tool working by removing metal or cermets through grinding and shaping processes on crystal boules. This equipment prepares semiconductor material for wafer production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a complete semiconductor wafer manufacturing system
Machines specifically for semiconductor manufacture like crystal growers are directed to 8486 by statistical notes.
If primarily for grinding crystal boules to precise diameters without pulling function
Shaping/grinding tools for specific tolerances may classify under other semiconductor prep machines.
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Import Tips & Compliance
• Verify rebuild certification and documentation proving the machine's refurbishment meets original specs to avoid reclassification as scrap
• Include detailed service history and test reports for US Customs to confirm 'used or rebuilt' status under statistical notes
• Ensure compliance with semiconductor equipment export controls from origin country
Related Products under HTS 8461.90.60.40
Used Semiconductor Crystal Shaper
Reconditioned shaping machine for custom crystal geometries in compound semiconductor production. HTS 8461.90.60.40 for used shaping tools working cermets.
Rebuilt Cermet Gear Finishing Machine
Refurbished machine for final gear finishing on cermet components used in semiconductor handlers. Classified HTS 8461.90.60.40 for rebuilt gear finishing tools.
Used boule Diameter Grinder
Reconditioned grinder maintaining cylindrical precision on semiconductor crystal boules. HTS 8461.90.60.40 for used metal-removal in wafer manufacturing per statistical notes.
Rebuilt Semiconductor Broaching Machine
Refurbished broaching tool for creating precise keyways in semiconductor equipment components. Falls under HTS 8461.90.60.40 as rebuilt broaching machine tool.
Used Wafer Slotting Saw
Rebuilt precision saw for creating alignment slots/notches on semiconductor wafers. HTS 8461.90.60.40 covers used slotting machine tools.
Rebuilt Float Zone Crystal Grower
A used float zone furnace rebuilt for producing high-purity silicon crystals by zone melting and metal removal via grinding electrodes. Classified under HTS 8461.90.60.40 for its metal-removing functions in semiconductor boule shaping and finishing. Essential for oxygen-free semiconductor wafers.