Crystal Boule Grinder Vacuum Extractor
High-capacity reciprocating vacuum pump exceeding 746 kW integrated with crystal grinders for removing diamond slurry during boule diameter grinding and flat creation. Critical for preparing semiconductor crystal boules per statistical note (a)(ii)(A). HTS 8414.80.20.75 applies to these powerful other compressors/vacuum pumps.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when imported as complete grinding machine for semiconductor boule prep
Heading 8460 covers semiconductor grinding/sawing machines, distinguishing from pump components.
If hoods or cabinets incorporating such fans/pumps
Ventilating hoods with integral fans shift to .40 subheading even for semiconductor cleanroom use.
If used for general contamination extraction rather than semiconductor grinding
Non-specific contamination extraction equipment follows general air treatment classifications.
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Import Tips & Compliance
• Match import docs to statistical note (a)(ii)(A) crystal grinders explicitly for semiconductor validation
• Power verification via UL/CE ratings prevents downgrade to sub-746 kW duty rates
• Cleanroom compatibility certificates aid customs clearance for semiconductor-designated equipment
Related Products under HTS 8414.80.20.75
Czochralski Crystal Puller
A high-power vacuum pump system used in Czochralski crystal growers to produce monocrystalline silicon boules exceeding 746 kW for semiconductor wafer manufacturing. This equipment maintains ultra-high vacuum conditions during the crystal pulling process to ensure purity and quality of semiconductor materials. Classified under 8414.80.20.75 as a vacuum pump integral to semiconductor processing exceeding the power threshold.
Float Zone Crystal Vacuum Pump
High-capacity rotary vacuum pump for float zone crystal growth systems exceeding 746 kW, used to process silicon into monocrystalline form for semiconductor wafers. Essential for maintaining zone melting under vacuum to achieve ultra-pure crystals free of impurities. Falls under 8414.80.20.75 as other vacuum pumps for semiconductor material growth over the power limit.
Semiconductor Wafer Slicing Saw Vacuum System
Integrated high-power vacuum pump (>746 kW) for wafer slicing saws that removes slurry and debris during diamond saw cutting of semiconductor boules into wafers. Ensures clean, precise wafer production per statistical note (a)(ii)(B). Classified as other vacuum pump under 8414.80.20.75 due to power rating and semiconductor processing function.
Wafer Lapping Vacuum Pump System
Rotary vacuum pump >746 kW for wafer lapping machines that extracts lapping slurry to achieve precise flatness tolerances required for semiconductor fabrication. Addresses statistical note (a)(ii)(C) wafer preparation equipment. Classified under 8414.80.20.75 as high-power other vacuum pump for semiconductor processing.
High-Power Semiconductor Process Vacuum Compressor
Reciprocating compressor/vacuum pump exceeding 746 kW used across multiple semiconductor growth and wafer prep stations for material processing. Supports crystal growth, grinding, slicing per statistical notes (a). HTS 8414.80.20.75 for other high-power compressors in semiconductor applications.
Gallium Arsenide Crystal Growth Vacuum Pump
Specialized high-power (>746 kW) vacuum pump for gallium arsenide crystal pullers used in compound semiconductor manufacturing. Maintains ultra-clean vacuum for GaAs boule growth explicitly mentioned in statistical notes. Classified 8414.80.20.75 as other vacuum pump exceeding power threshold.