Czochralski Crystal Puller Compressor
A rotary compressor integral to Czochralski crystal pullers used for producing monocrystalline silicon boules in semiconductor wafer manufacturing. Classified under HTS 8414.80.20.55 as it is a rotary compressor not exceeding 186.5 kW, specifically for gas compression in crystal growth processes. Excludes standalone testing apparatus covered in Chapter 90.
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 integral part of complete crystal grower machine
Tapering/compound machines incorporating compressors classify in 8481 as complete semiconductor processing apparatus.
If turbocharger or supercharger type for crystal growth vacuum systems
Turbo type compressors specifically directed to 8414.80.16 regardless of power rating.
If primarily for testing semiconductor wafers rather than processing
Testing instruments and apparatus for semiconductor devices fall under Chapter 90.
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Import Tips & Compliance
• Verify motor power rating documentation to confirm ≤186.5 kW threshold for this subheading
• Provide detailed technical specs proving semiconductor manufacturing use to avoid reclassification
• Ensure CE marking or equivalent for safety compliance in high-vacuum gas handling systems
Related Products under HTS 8414.80.20.55
Float Zone Crystal Furnace Compressor
Reciprocating compressor module for float zone crystal growth furnaces producing high-purity semiconductor silicon. Falls under HTS 8414.80.20.55 as a reciprocating compressor ≤186.5 kW used in inert gas circulation for semiconductor material processing.
Wafer Slicing Saw Vacuum Compressor
Oil-free rotary screw compressor providing vacuum hold-down for wafer slicing saws that cut monocrystalline semiconductor boules into wafers. HTS 8414.80.20.55 applies to this ≤186.5 kW rotary compressor for semiconductor wafer preparation.
Crystal Grinder Coolant Gas Compressor
Reciprocating compressor circulating coolant gas in crystal grinders that shape semiconductor boules to precise wafer diameters. Classified HTS 8414.80.20.55 for ≤186.5 kW reciprocating compressors in semiconductor wafer manufacturing equipment.
Wafer Lapping Machine Air Compressor
Scroll compressor supplying precisely regulated air pressure to wafer lappers/polishers achieving semiconductor flatness specifications. HTS 8414.80.20.55 for this ≤186.5 kW compressor in wafer surface preparation equipment.
Semiconductor Wafer Vacuum Rotary Compressor
Dedicated rotary vane compressor for vacuum chucks holding wafers during semiconductor fabrication preprocessing. Under HTS 8414.80.20.55 as ≤186.5 kW rotary compressor specifically for semiconductor wafer manufacturing.
Gallium Arsenide Crystal Growth Compressor
Reciprocating compressor for high-pressure gas systems in gallium arsenide compound semiconductor crystal growth. HTS 8414.80.20.55 covers this ≤186.5 kW compressor for processing non-silicon semiconductor materials.