Wafer Grinder Spindle Speed Changer from Canada
Manual multi-speed gearbox for semiconductor wafer grinding equipment spindle drive. Allows precise RPM selection for different grind/lap/polish stages. HTS 8483.40.50 as manually operated speed changer.
Duty Rate — Canada → United States
12.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify surface finish capabilities (Ra < 1 nm) and flatness tolerances
• Include vibration isolation specs for semiconductor cleanroom use
• Verify separability from grinder head to maintain standalone classification