Wafer Slicing Saw Coolant Control Valve from Mexico
Precision valve managing deionized water coolant flow in wafer slicing saws that cut monocrystalline boules into thin silicon wafers. Falls under HTS 8481.90.9085 per statistical note (a)(ii)(B) for wafer preparation equipment parts. Critical for flatness and damage prevention.
Duty Rate — Mexico → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include saw equipment OEM specs confirming DI water purity requirements for classification support
• Declare flow rates (e.g
• 1-5 L/min) and material (PVDF for corrosion resistance) in commercial invoice