Copper Alloy Bearing Balls for Semiconductor Wafer Crystal Pullers
Precision copper alloy balls used in high-vacuum bearings of Czochralski crystal pullers for growing monocrystalline silicon boules in semiconductor manufacturing. These balls fall under HTS 8482.91.0015 as they are specifically balls of copper alloys as per statistical note 6 to chapter 84, intended for semiconductor processing equipment. Their non-magnetic properties and corrosion resistance suit cleanroom environments.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not exclusively for semiconductor equipment
Balls of other materials or general-purpose copper balls fall under other parts of bearing balls without statistical note 6 specificity.
If imported as bulk copper alloy articles without bearing specification
Unspecified copper alloy products shift to Chapter 74 unless clearly identified as bearing balls.
If imported as part of complete semiconductor machine
Parts of semiconductor manufacturing machines may classify with the complete apparatus rather than separately as bearing components.
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
• Provide documentation proving use in semiconductor manufacturing equipment per statistical note 6 to qualify for preferential treatment
• Ensure supplier certifications confirm copper alloy composition and semiconductor application
• Avoid misclassification by specifying end-use in commercial invoice
Related Products under HTS 8482.91.00.15
Precision Copper Balls for Float Zone Crystal Grower Bearings
High-purity copper alloy balls for vacuum bearings in float zone crystal growers that produce semiconductor boules from polycrystalline silicon rods. Classified under HTS 8482.91.0015 due to statistical note 6 designation for copper alloy balls in semiconductor material growth equipment. Essential for precise rotation control in ultra-clean processing.
Non-Magnetic Copper Roller Balls for Wafer Grinding Machine Spindles
Copper alloy balls engineered for non-magnetic properties in high-speed spindles of wafer grinders that process crystal boules to precise diameters for semiconductor wafers. HTS 8482.91.0015 applies per statistical note 6 for copper balls in wafer preparation equipment. Critical for maintaining crystal orientation during grinding.
Copper Alloy Balls for Wafer Slicing Saw Bearings
Specialized copper balls for precision bearings in inner diameter (ID) saws that slice semiconductor wafers from monocrystalline boules. Falls under HTS 8482.91.0015 as statistical note 6 copper alloy balls for wafer slicing equipment in semiconductor processing. Ensures vibration-free slicing for uniform wafer thickness.
High-Purity Copper Balls for Wafer Lapping Machine Thrust Bearings
Ultra-pure copper alloy balls for thrust bearings in wafer lappers that achieve flatness tolerances critical for semiconductor fabrication. Classified HTS 8482.91.0015 per statistical note 6 for copper balls in wafer preparation equipment. Provides contamination-free load distribution during lapping.
Copper Roller Balls for Semiconductor Wafer Polisher Spindles
Precision copper alloy roller balls for high-speed polishers that prepare wafer surfaces to atomic flatness for semiconductor device fabrication. HTS 8482.91.0015 designation via statistical note 6 for copper balls in wafer polishing equipment. Critical for nanometer-level surface finish control.