Worm Gear for Wafer Lapping Machine
Precision worm gear providing slow, high-torque rotation for wafer lappers that achieve sub-micron flatness on semiconductor wafer surfaces before fabrication. Covered under statistical note wafer grinders, lappers, and polishers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lapping equipment for general optics
Non-semiconductor lapping/policing machines classify under static converters.
If medical/optical wafer processing
Precision lapping for optical components falls under instruments.
If other semiconductor processing machines
Complete lapping machines may classify under unlisted semiconductor equipment.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Specify flatness specs (lambda/10 or better) to validate semiconductor wafer application
• Provide slurry compatibility data for lapping process documentation
Related Products under HTS 8483.90.80.10
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Zero-backlash precision gear eliminating play in vertical lift mechanism of semiconductor crystal pullers, ensuring constant growth speed.
Flexible Gear Coupling for Wafer Lapper Drive
Flexible gear coupling compensating for thermal expansion in high-speed wafer lapper drive trains, maintaining alignment during operation.
Timing Belt Pulley for Wafer Slicing Saw
Specialized timing pulley that drives the high-speed diamond blade in wafer slicing saws, which cut thin semiconductor wafers from monocrystalline boules. Critical transmission component for precise wafer thickness control in equipment of 8483.60.80.
Chain Sprocket for Wafer Polishing Equipment
Industrial chain sprocket driving the polishing pad carrier in double-side wafer polishers, achieving mirror-finish surfaces for semiconductor device fabrication. Essential transmission element per statistical note (a)(ii)(C).
Camshaft for Semiconductor Wafer Indexer
Custom camshaft controlling precise wafer indexing and rotation in automated semiconductor processing equipment under 8483.60.80. Ensures exact positioning for grinding/polishing operations.