Cast Iron Wafer Crystal Puller Mounting Base
This cast iron base is machined solely to remove casting fins and gates, designed for precise mounting of crystal pullers used in semiconductor boule production under heading 8461. It ensures stability during the Czochralski process for growing monocrystalline silicon ingots. Classifies under 8466.93.60.60 as a cast-iron part not advanced beyond basic cleaning and minimal machining for semiconductor machines.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If advanced beyond cleaning with precision threading or coatings
Parts machined beyond fin removal for semiconductor equipment fall under machines and mechanical appliances having individual functions.
If for general industrial machinery not specific to 8456-8461
Cast iron castings for non-specific machine use classify under other cast iron articles, losing semiconductor specificity.
If used in testing apparatus for semiconductor wafers
Parts for testing machines of Chapter 90, like wafer flatness testers, shift to optical/measuring instrument parts.
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Import Tips & Compliance
• Verify the part is solely for heading 8461 machines via manufacturer specs to avoid reclassification; include CAD drawings showing minimal machining; watch for anti-dumping duties on Chinese castings
Related Products under HTS 8466.93.60.60
Cast Iron Wafer Polisher Frame Assembly Base
Base frame for wafer polishers achieving flatness for fab processing, minimal cast iron machining under 8466.93.60.60 for heading 8461 equipment.
Cast Iron Crystal Puller Support Arm
Support arm casting for Czochralski pullers, gate-cleaned only, 8466.93.60.60 for 8461.
Cast Iron Wafer Saw Alignment Bracket
Bracket for saw alignment in wafer slicing, basic machining, 8466.93.60.60.
Cast Iron Wafer Grinder Spindle Housing
Housing for spindles in wafer grinders (8461), cast iron with minimal machining for sprue removal and mounting tabs. Used post-slicing to grind wafers to tolerance for semiconductor fab. 8466.93.60.60 due to basic processing state.
Cast Iron Boule Grinder Fixture Plate
Fixture plate for grinding semiconductor crystal boules to diameter specs, cast iron cleaned and located per 8466.93.60.60 for 8461 grinders. Indicates conductivity via flat grinding as per statistical note.
Cast Iron Wafer Slicing Saw Bed Frame
A cast iron frame for wafer slicing saws under heading 8461, cleaned and machined only at locational points for assembly in semiconductor wafer preparation. It supports precise slicing of monocrystalline boules into wafers. Meets 8466.93.60.60 criteria for minimal processing on cast-iron parts.