Servo-Controlled Electrical Valve for Wafer Grinder Diamond Slurry from Canada
Servo-actuated electrical valve maintains constant diamond slurry pressure in wafer grinders for semiconductor boule preparation. Classified HTS 8481.80.9025 for precision electrical valves in wafer manufacturing.
Duty Rate — Canada → United States
12%
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 servo response time <100ms for dynamic slurry control
• Include diamond abrasive concentration test data for wear qualification
• Use nitrogen-purged shipping to maintain slurry compatibility