Carbon Molecular Sieve Nitrogen PSA System from Mexico
This PSA unit employs carbon molecular sieves with precise pore sizes to kinetically separate nitrogen from oxygen in compressed air, yielding high-purity N2 for food packaging and electronics. HTS 8421.39.0140 covers this dedicated gas separation machinery.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit sieve adsorption isotherm data to prove selective gas separation function
• Avoid bundling with compressors to prevent reclassification as complete air generation sets
• Declare CMS material safety data for hazardous material screening