Other
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof: > Centrifuges, including centrifugal dryers: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8421.19.00.00
Precision Wafer Lapping Centrifuge
Centrifugal lapping machine that rotates semiconductor wafers against abrasive surfaces to achieve critical flatness for device fabrication. HTS 8421.19.00.00 includes this wafer preparation equipment.
Czochralski Crystal Puller
A centrifuge-based machine used in semiconductor manufacturing to grow monocrystalline silicon boules via the Czochralski method by rotating and pulling crystal from molten silicon. It falls under HTS 8421.19.00.00 as 'other' centrifuges specifically for high-precision material processing in wafer production.
Float Zone Crystal Grower
Centrifugal apparatus employing float zone method to produce ultra-pure silicon crystals for semiconductor wafers by rotating a molten zone along a polycrystalline rod. Classified in 8421.19.00.00 as other centrifuges for specialized semiconductor material growth.
Semiconductor Crystal Boule Grinder
High-precision centrifugal grinder that rotates crystal boules to achieve exact diameters and orientation flats indicating conductivity type for semiconductor wafers. Fits HTS 8421.19.00.00 as other centrifuges per statistical notes for wafer preparation equipment.
Gallium Arsenide Wafer Centrifuge Dryer
Centrifugal dryer specifically designed to spin-dry compound semiconductor wafers like gallium arsenide after chemical processing without surface damage. Classified under 8421.19.00.00 for other centrifugal dryers in semiconductor production.
Silicon Ingot Centrifugal Polisher
Rotating centrifugal polisher that processes silicon ingots to precise surface flatness before wafer slicing in semiconductor fabrication. Falls under HTS 8421.19.00.00 as specialized other centrifuges for wafer manufacturing preparation.
High-G Centrifuge for Wafer Stress Testing
Centrifuge applying extreme rotational forces to test semiconductor wafer mechanical integrity before device fabrication. Classified in 8421.19.00.00 as other centrifuges for semiconductor material processing and testing.
Centrifugal Wafer Edge Profiling Machine
Specialized centrifuge that rotates wafers to profile and bevel edges for fracture prevention during semiconductor processing. HTS 8421.19.00.00 covers this as other centrifuge for wafer preparation per statistical notes.
Rotating Crystal Annealing Centrifuge
Centrifugal furnace that spins semiconductor crystals during high-temperature annealing to ensure uniform dopant distribution. Fits 8421.19.00.00 as other centrifuges for silicon/gallium arsenide processing.
Compound Semiconductor Slurry Centrifuge
Centrifuge separating polishing slurry from gallium arsenide or silicon wafers post-chemical mechanical planarization in semiconductor fabs. Classified under 8421.19.00.00 for other centrifuges in wafer processing.