Crystal Boule Grinder Coolant Dispersion Ring from Mexico
Annular jet ring that disperses coolant streams around grinding wheels for precise diameter control on semiconductor crystal boules. Falls under HTS 8424.90.90.40 for parts of powder/liquid projecting machines in wafer prep. Ensures uniform cooling to prevent thermal cracking during flat grinding.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include grind wheel RPM and coolant PSI specs to demonstrate jet precision requirements
• Certify RoHS compliance early as semiconductor parts face strict contamination controls