Spur Gear for Semiconductor Wafer Crystal Puller
A precision-machined spur gear designed specifically for use in Czochralski crystal pullers, which produce monocrystalline silicon boules for semiconductor wafers. It transmits rotational motion in the pulling mechanism of equipment covered under HTS 8483.60.80. Classified as a part of toothed wheels and transmission elements for semiconductor manufacturing machinery.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not proven for semiconductor manufacturing equipment
General parts of transmission elements fall under the 'other' category without specific semiconductor application.
If classified as part of unlisted semiconductor machines
Parts of machines not elsewhere specified for semiconductor fabrication may shift to Chapter 84 machines and appliances.
If integrated into testing apparatus
Transmission parts in semiconductor testing equipment often classify under Chapter 90 measuring instruments.
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
• Verify the part is explicitly for 8483.60.80 machinery via manufacturer specs and end-use declaration to avoid reclassification
• Include detailed engineering drawings and assembly diagrams in documentation to prove compatibility with semiconductor processing equipment
Related Products under HTS 8483.90.80.10
Index Gear for Wafer Grinder Spindle
Multi-station indexing gear rotating wafer spindles through grinding, etching, and cleaning cycles in semiconductor wafer processing equipment.
Anti-Backlash Gear for Crystal Puller Lift
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.