Machinery for liquefying air or other gases
Machinery, plant or laboratory equipment, whether or not electrically heated (excluding furnaces, ovens and other equipment of heading 85.14), for the treatment of materials by a process involving a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilizing, pasteurizing, steaming, drying, evaporating, vaporizing, condensing or cooling, other than machinery or plant of a kind used for domestic purposes; instantaneous or storage water heaters, non-electric. > Machinery for liquefying air or other gases > Machinery for liquefying air or other gases
Duty Rate (from China)
Products classified under Tariff item 8419.60
Air Separation Unit ASU-2000
The Air Separation Unit ASU-2000 is industrial machinery designed to separate atmospheric air into nitrogen, oxygen, and argon through cryogenic distillation involving cooling and liquefaction of air. It falls directly under this tariff item for machinery liquefying air.
8419.60.00Argon Gas Liquefaction Skid ALS-300
The Argon Gas Liquefaction Skid ALS-300 is a modular skid-mounted system for recovering and liquefying argon from air separation processes via low-temperature distillation and cooling. It is classified under this item as machinery for liquefying gases.
8419.60.00Brazed Aluminum Plate-Fin Air Separation Unit
A brazed aluminum plate-fin air separation unit is compact machinery designed for cryogenic air separation into oxygen, nitrogen, and argon. It uses brazed aluminum plate-fin heat exchangers for efficient gas cooling and liquefaction, which is the core function of this tariff item.
8419.60.00CO2 Liquefaction Machine CLM-750
The CO2 Liquefaction Machine CLM-750 is equipment for converting gaseous CO2 from fermentation or combustion capture into liquid form through compression cooling and condensation. It is used for beverage carbonation and dry ice production, fitting this item for gas liquefaction.
8419.60.00Cryocooler Heat Exchanger Module for Air Liquefaction
This cryocooler heat exchanger module is a compact brazed aluminum plate-fin heat exchanger integrated into Stirling or Gifford-McMahon cryocoolers for small-scale air liquefaction. It functions as complete machinery for liquefying air, meeting the tariff item's scope.
8419.60.00Cryogenic LNG Vaporizer with Plate-Fin Exchangers
This cryogenic LNG vaporizer is machinery for vaporizing liquefied natural gas using brazed aluminum plate-fin heat exchangers in open-rack or submerged coil configurations. Although it vaporizes gas, it is classified under this item because it is specifically designed for gas liquefaction systems and uses similar technology.
8419.60.00Cryogenic Oxygen Liquefier COL-1000
The Cryogenic Oxygen Liquefier COL-1000 is machinery that purifies and liquefies oxygen from air using Claude cycle refrigeration, producing liquid oxygen for medical and industrial supply. It qualifies under this item as gas liquefaction equipment.
8419.60.00Helium Liquefaction Plant with Plate-Fin HX
A helium liquefaction plant is an industrial system for liquefying helium gas employing multiple brazed aluminum plate-fin heat exchangers in a Claude cycle configuration. It is used for superconducting applications and directly falls under machinery for liquefying gases.
8419.60.00Industrial Helium Recovery Liquefier HRL-400
The Industrial Helium Recovery Liquefier HRL-400 is a system for recapturing and reliquefying helium gas from industrial processes like MRI cooling and balloon filling via Gifford-McMahon cycle. It is classified under this item as other gas liquefaction equipment.
8419.60.00Methane Liquefier for LNG Mini-Plant MLNG-250
The Methane Liquefier for LNG Mini-Plant MLNG-250 is a small-scale natural gas liquefaction plant using mixed refrigerant cycle to produce LNG from pipeline methane. It is classified under this item as machinery for liquefying gases.
8419.60.00Nitrogen Generator with Brazed Plate-Fin Cooler
This nitrogen generator is a pressure swing adsorption unit integrated with brazed aluminum plate-fin heat exchangers for gas precooling and liquefaction backup. It is classified under this item because it is specifically designed for gas liquefaction, despite its primary adsorption function.
8419.60.00Nitrogen Liquefaction Plant NLI-500
The Nitrogen Liquefaction Plant NLI-500 is a compact plant for liquefying nitrogen gas from compressed air via cryogenic cooling and expansion cycles. It is used in laboratories and small-scale industrial settings, fitting this item for gas liquefaction.
8419.60.00Plate-Fin Recuperator for Argon Liquefaction
This plate-fin recuperator is a brazed aluminum heat exchanger integrated into an argon liquefaction cycle for recovering cold from exhaust gases. It is classified under this item as machinery specifically designed for gas liquefaction.
8419.60.00Portable Air Liquefier PAL-150
The Portable Air Liquefier PAL-150 is a mobile unit for on-site liquefaction of air into liquid nitrogen and oxygen, utilizing Stirling cycle cooling for field operations. It is classified under this item as machinery for liquefying air.