Boule Grinder Flatting Fixture
Custom fixture for grinding orientation flats on semiconductor crystal boules per statistical notes. Designed for heading 8463 grinding machines, under HTS 8466.94.85.85. Ensures conductivity/resistivity indication flats meet industry specs.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mold/platen type work holders
Different work holder types have specific statistical subheadings.
If aluminum fixture components imported bulk
Aluminum articles not principally machine tool parts classify under Chapter 76.
Not sure which classification is right?
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Import Tips & Compliance
• Document flat positioning accuracy (±0.5°) and boule diameter range (100-300mm)
• Include drawings showing semiconductor-specific flat configurations (primary/secondary)
Related Products under HTS 8466.94.85.85
CNC Lathe Spindle Motor
High-precision spindle motor designed specifically for CNC lathes under heading 8462, providing rotational power to the chuck holding the workpiece. It falls under HTS 8466.94.85.85 as a part suitable solely or principally for use with machine tools of heading 8462. Essential for high-speed machining operations in semiconductor wafer preparation equipment.
Wafer Grinder Spindle Assembly
Precision spindle assembly for wafer grinders used in semiconductor boule preparation, compatible with grinding machines of heading 8463. Classified under 8466.94.85.85 as an accessory principally for heading 8463 machines. Critical for achieving flatness tolerances in crystal grinding per statistical notes.
Crystal Puller Tool Holder
Specialized tool holder for crystal pullers in Czochralski method equipment under heading 8462, holding seed crystals during boule growth. Falls under HTS 8466.94.85.85 as a work/tool holder for 8462 machines. Designed for extreme temperature/precision environments in semiconductor manufacturing.
CNC Grinder Workhead
Complete workhead assembly for CNC grinding machines of heading 8463 used in wafer lapping/polishing prep. Under HTS 8466.94.85.85 as part principally for 8463 grinders. Provides precise rotational control for semiconductor surface flatness.
Wafer Polisher Quill Assembly
Quill/spindle assembly for wafer polishers bringing surfaces to semiconductor fabrication tolerances. For heading 8463 polishing machines, classified 8466.94.85.85. Critical for flatness specs in statistical note wafer preparation equipment.
Czochralski Crystal Seed Chuck
Rotating seed chuck for Czochralski crystal pullers under heading 8462. HTS 8466.94.85.85 as work holder for boule growers. Temperature-controlled interface prevents crystal defects during growth initiation.