Crystal Grinder Flattening Fixture
Custom precision fixture that holds crystal boules for grinding orientation flats indicating conductivity type in 8426.30 equipment. Semiconductor-specific part for 8431.49.1010 classification.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general precision grinding fixtures
Work holders for metalworking grinders classify under 8466 parts.
If aluminum fixture construction
Other aluminum articles not machinery parts go to Chapter 76.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Supply CAD files showing exact flat angle tolerances for resistivity encoding
• Document as 'principal part' not accessory to avoid 8431.49.50
• Pair with machine serial compatibility list
Related Products under HTS 8431.49.10.10
Crystal Puller Seed Holder Chuck
Rotating graphite or molybdenum chuck that precisely grips silicon seed crystal during Czochralski pulling in 8426.11 pullers. Critical growth interface part for 8431.49.1010.
Float Zone Crystal Grower RF Coil
Radio frequency induction coil for float zone crystal growers (8426.11) that melts silicon rods without crucibles to produce high-purity monocrystalline ingots for wafers. Classified in 8431.49.1010 as a principal part dedicated to semiconductor processing equipment.
Wafer Lapping Machine Conditioning Ring
Cast iron or composite conditioning ring for wafer lappers (8426.30) that dresses the lapping plate surface for flatness control in semiconductor wafer preparation. Specific to machinery in 8426.11/19/30 subheadings, hence 8431.49.1010.
Wafer Polishing Pad Conditioner Disk
Diamond-embedded conditioner disk for dressing chemical mechanical polishing pads on wafer polishers (8426.30). Essential maintenance part solely for semiconductor wafer finishing machinery under 8431.49.1010.
Float Zone Furnace Quartz Crucible Holder
Although float zone is crucible-less, this precision quartz holder supports seed/feed rods in RF furnaces (8426.11) for stable zone melting. Part for semiconductor crystal growth equipment under 8431.49.1010.
Diamond Wire Saw Tensioner Roller
Ceramic-coated tensioning roller maintaining diamond wire tension and alignment in wafer slicing saws (8426.19). Dedicated semiconductor equipment part under 8431.49.1010.