Czochralski Crystal Puller Compressor
A high-power rotary compressor integrated into Czochralski crystal pullers for producing monocrystalline silicon boules in semiconductor wafer manufacturing. It maintains vacuum and gas pressure during the crystal growth process from molten silicon. Classified under HTS 8414.80.20.65 due to its power rating between 186.5 kW and 746 kW and role in semiconductor processing equipment.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a replacement part without motor
Separate compressor valves or components fall under machinery parts, not complete powered units.
If power exceeds 746 kW
Higher horsepower compressors shift to the next statistical suffix in the same heading.
If primarily for testing semiconductor wafers
Equipment focused on wafer testing rather than processing moves to Chapter 90 instruments.
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
• Verify motor power rating with manufacturer specs to confirm 186.5-746 kW classification; misstated power can lead to reclassification
• Include detailed technical datasheets showing semiconductor end-use to avoid general compressor duties
• Ensure CE marking or equivalent for safety compliance in high-pressure gas systems
Related Products under HTS 8414.80.20.65
Float Zone Crystal Grower Vacuum Pump
Reciprocating vacuum pump powering float zone furnaces for growing high-purity silicon crystals used in semiconductor wafers. Operates at 300 kW to achieve ultra-high vacuum during zone refining. Falls under HTS 8414.80.20.65 for its power range and specific use in semiconductor material growth.
Wafer Slicing Saw Gas Compressor
400 kW rotary gas compressor supplying coolant and process gases to diamond wire wafer slicing saws that cut silicon boules into thin wafers. Ensures precise pressure control for minimal kerf loss in semiconductor wafer preparation. HTS 8414.80.20.65 applies to its power capacity and wafer manufacturing role.
Crystal Boule Grinder Air Compressor
250 kW reciprocating compressor powering pneumatic systems in crystal grinders that shape silicon boules to exact wafer diameters and flats indicating resistivity. Critical for preparing semiconductor crystals post-growth. Classified in HTS 8414.80.20.65 for mid-range power semiconductor processing compressors.
Wafer Lapping Polisher Vacuum Compressor
550 kW vacuum compressor for wafer grinders, lappers, and polishers that achieve mirror-flat surfaces on semiconductor wafers within tight tolerances. Enables fabrication-ready wafer flatness critical for device processing. HTS 8414.80.20.65 covers this power-rated equipment per statistical notes.
Gallium Arsenide Wafer Processing Compressor
Rotary compressor rated at 450 kW for gas delivery systems in compound semiconductor (GaAs) wafer processing equipment. Handles corrosive gases during epitaxial growth and wafer prep. Fits HTS 8414.80.20.65 as specified in statistical notes for semiconductor materials beyond silicon.
Semiconductor Vacuum Pump Station 500 kW
Integrated 500 kW vacuum pump station with multiple rotary stages for evacuating chambers in wafer processing tools. Used across crystal growth, wafer slicing, and polishing lines. HTS 8414.80.20.65 classification for power and semiconductor-specific application.