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Helium Liquefaction Plant with Plate-Fin HX from Japan

Industrial system for liquefying helium gas employing multiple brazed aluminum plate-fin heat exchangers in a Claude cycle configuration for superconducting applications. HTS 8419.60.10.00 classification applies due to the integral brazed plate-fin exchangers performing the essential gas cooling and liquefaction functions.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Include cycle diagrams showing plate-fin exchanger integration to distinguish from coil-wound helium systems

Certify purity levels and leak test results as helium systems require extreme vacuum integrity documentation

Declare as complete machinery, not parts, to avoid separate classification under 8419.90

Helium Liquefaction Plant with Plate-Fin HX from Japan — Import Duty Rate | HTS 8419.60.10.00