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💾 Data Updated: Latest version • Last updated: December 09, 2025

8419.60 - Machinery for liquefying air or other gases:

Sub-classifications

Commodity Code
Description

Overview

HTS code 8419.60 encompasses machinery specifically designed for the liquefaction of air or other gases. This process involves reducing gases to a liquid state, typically through refrigeration or compression cycles. Examples include cryogenic air separation units used to produce liquid oxygen, nitrogen, and argon, as well as equipment for liquefying natural gas or other industrial gases.

This category is distinguished from its sibling categories by its singular focus on the liquefaction process. Unlike "Dryers" (8419.30) which remove moisture, or "Distilling or rectifying plant" (8419.40) used for separation based on boiling points, 8419.60 machinery is dedicated to transforming a gas into a liquid. It also differs from "Heat exchange units" (8419.50) which facilitate thermal transfer but do not necessarily result in a phase change to a liquid state of the gas itself.

The subcategories within 8419.60 provide further refinement based on key constructional features. Subheading 8419.60.10.00 specifically addresses machinery incorporating brazed aluminum plate-fin heat exchangers, indicating a particular type of design and material construction crucial for efficient heat transfer in the liquefaction process. The residual "Other" category, 8419.60.50.00, covers all other machinery for liquefying air or other gases that do not meet the specific criteria of the preceding subheading.

Frequently Asked Questions

›What is HTS code 8419.60?
HTS code 8419.60 covers Machinery for liquefying air or other gases: under the US Harmonized Tariff Schedule. It falls under Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
›What products are classified under 8419.60?
This classification covers Machinery for liquefying air or other gases:. It is a subcategory of Machinery, plant or laboratory equipment, whether or not electrically heated (excluding furnaces, ovens and other equipment of heading 8514), 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, nonelectric; parts thereof: (8419).
›How many HTS codes are under 8419.60?
There are 2 direct subcategories under this classification.
›What are the subcategories under 8419.60?
This category contains 2 subcategories: Machinery containing brazed aluminum plate-fin heat exchangers, Other.
Go up to 8419 · Go up to Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

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