Cast Iron Crystal Grinder Work Holder Base
Cast iron base plate for work holders in crystal grinders (heading 8461) used to grind semiconductor boules to wafer diameters. Machined only for fins removal and fixture holes per 8466.93.60.60. Critical for maintaining boule roundness in float zone processing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for machines of headings 8462-8465
Parts specified for metalworking machines like presses shift to later subheadings.
If part of furnace-integrated grinders
Semiconductor processing ovens/furnaces classify under Chapter 84 heating machinery.
If bulk castings without machine specificity
Minimally processed castings not linked to 8456-8461 go to other cast iron products.
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Import Tips & Compliance
• Provide statistical note reference proving grinder use; inspect for over-machining which could shift classification; use HTS advisory opinions for confirmation
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 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.