Centrifuge Rotor Assembly
Replacement rotor assembly for laboratory centrifuges used in semiconductor wafer processing to separate particles from liquids during crystal boule preparation. Classified under 8421.91.60.00 as a part of centrifuges for high-precision purification in semiconductor manufacturing. Ensures contaminant-free slurries for wafer grinding and polishing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed for cream separators or clothes dryers
Specific subheading for parts of dairy or laundry centrifuges, excluding semiconductor processing equipment.
If classified as part of semiconductor manufacturing machine
Chapter 84 statistical notes direct semiconductor-specific parts to 8479 if integral to wafer fab equipment.
If incorporating electronic measurement functions
Machines with integrated sensors for fluid analysis shift to Chapter 90 for measuring apparatus.
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Import Tips & Compliance
• Verify part compatibility with specific centrifuge models via manufacturer specs to avoid misclassification as machinery
• Include detailed engineering drawings and end-use statements for semiconductor processing to qualify for duty relief programs
• Ensure RoHS compliance certification as common pitfall in electronics-related centrifuge parts
Related Products under HTS 8421.91.60.00
Semiconductor Centrifuge Bowl
Stainless steel centrifuge bowl for high-speed separation in semiconductor wafer lapping slurry purification systems. Falls under 8421.91.60.00 as 'other' parts of centrifuges used in preparing ultra-flat wafer surfaces. Critical for removing abrasives and achieving nanometer-level tolerances.
Wafer Processing Centrifuge Lid
Pressure-sealed lid with safety interlocks for centrifuges in semiconductor crystal grinding operations. HTS 8421.91.60.00 covers this as other centrifuge part essential for containing high-speed rotations during fluid purification. Features cleanroom-compatible seals for particle-free environments.
Centrifugal Dryer Basket for Wafers
Perforated titanium basket for centrifugal dryers removing process fluids from semiconductor wafers post-polishing. Under 8421.91.60.00 as parts of centrifugal dryers used in wafer preparation sequence. Designed for spin-drying without surface damage.
Slurry Centrifuge Scroll Conveyor
Helical scroll conveyor inside decanter centrifuges for continuous slurry discharge in semiconductor wafer grinding operations. HTS 8421.91.60.00 for other centrifuge parts handling abrasive semiconductor polishing slurries. Tungsten carbide coating for wear resistance.
High-G Centrifuge Bearing Housing
Aluminum housing for precision bearings in high-G force centrifuges used for float zone crystal purification in semiconductors. Classified 8421.91.60.00 as essential other part maintaining alignment under extreme speeds. Vibration-dampening design for defect-free processing.
Vibration Isolation Mount for Centrifuge
Elastomer vibration isolation mounts for semiconductor processing centrifuges preventing wafer defect transmission. Classified under 8421.91.60.00 as other essential parts for stable operation during crystal boule grinding. Tuned natural frequency below process RPMs.