Other
Pumps for liquids, whether or not fitted with a measuring device; liquid elevators; part thereof: > Other pumps; liquid elevators: > Pumps > 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 8413.81.00.40
Czochralski Crystal Puller Pump
A high-precision liquid pump used in Czochralski crystal growers to control the flow of molten silicon during monocrystalline boule production for semiconductor wafers. It falls under HTS 8413.81.0040 as an other pump specifically for semiconductor manufacturing equipment. This pump maintains stable melt levels critical for defect-free crystal growth.
Float Zone Melting Process Pump
Specialized pump for circulating inert gases or cooling liquids in float zone crystal growth systems producing high-purity silicon boules for wafers. Classified in HTS 8413.81.0040 as other pumps integral to semiconductor wafer manufacturing equipment. Ensures thermal stability during zone refining process.
Wafer Slicing Coolant Pump
Liquid pump delivering coolant to diamond wire saws during wafer slicing from silicon boules in semiconductor fabrication. HTS 8413.81.0040 covers this as other pumps for wafer preparation equipment. Maintains blade temperature for precise, thin wafer cuts without thermal damage.
Crystal Boule Grinder Slurry Pump
Abrasive slurry pump for crystal grinders shaping silicon boules to exact wafer diameters and flats indicating conductivity. Under HTS 8413.81.0040 for pumps in semiconductor wafer prep equipment. Provides consistent slurry flow for precision grinding.
Wafer Lapping Coolant Circulation Pump
Circulation pump for coolant in wafer lappers achieving flatness tolerances for semiconductor fabrication. HTS 8413.81.0040 as other pump in wafer preparation apparatus. Removes heat and debris during lapping for mirror-surface wafers.
Wafer Polishing Slurry Feed Pump
Precision metering pump feeding chemical slurry to polishers preparing wafer surfaces for device fabrication. Classified HTS 8413.81.0040 for semiconductor wafer processing pumps. Delivers uniform slurry for sub-micron surface flatness.
Semiconductor Wafer Cleaning Rinse Pump
High-purity DI water pump for post-polish wafer rinsing stations in wafer prep lines. HTS 8413.81.0040 covers pumps for semiconductor wafer preparation equipment. Ensures particle-free surfaces before fabrication.
Crystal Ingot Annealing Fluid Pump
Thermal fluid pump for controlled cooling in silicon ingot annealing furnaces post-growth. Under HTS 8413.81.0040 as pump in wafer manufacturing equipment. Prevents thermal stress cracks in boules.
Wafer Edge Grinding Coolant Pump
Compact pump supplying coolant for edge grinders creating wafer handling flats. HTS 8413.81.0040 for other pumps in wafer prep. Ensures chip-free edges for robotic handling.