Product classification
HS code for Cold isostatic press: 8479.83
Machines and mechanical appliances, cold isostatic presses.
Classification of cold isostatic press under HS 8479.83
The cold isostatic press (CIP) is classified under HS code 8479.83. This code is situated within Chapter 84, which covers nuclear reactors, boilers, machinery, and mechanical appliances. Heading 8479 is a "residual" heading for machines and mechanical appliances having individual functions, not specified or included elsewhere in the chapter. Subheading 8479.83 was specifically introduced to provide a clear classification for isostatic presses. A cold isostatic press uses a liquid medium (usually water or oil) to apply uniform pressure from all directions to a powder mass contained in a flexible mold at room temperature. This process is essential for achieving high-density components in ceramics, powdered metallurgy, and plastics. The classification depends on the machine's primary function of compacting materials through isostatic pressure. Because these machines serve a unique mechanical function that does not fit into more specific headings like metal-working presses or mineral processing machinery, they are correctly placed under this specialized subheading. Accurate classification ensures compliance with dual-use technology regulations, as high-precision isostatic presses are sometimes subject to export controls.
- Covers
- Dry bag cold isostatic presses
- Wet bag cold isostatic presses
- Hydraulic CIP machines for ceramic shaping
- Isostatic presses for powdered metal compaction
- Laboratory-scale cold isostatic presses
- Also under 8479.83
- Quintus Technologies QIH series
- EPSI Isostatic Presses
- KOBELCO HIP/CIP
- American Isostatic Presses (AIP) CIP systems
Codes often confused with 8479.83
Common mistake. Cold isostatic presses are often misclassified under 8462.91 (hydraulic presses for working metal). However, because CIPs work on powders rather than solid metal pieces, 8479.83 is more specific. They are also sometimes confused with 8474.80 (machinery for agglomerating or molding mineral products), but the unique isostatic pressure mechanism takes precedence under the specific 8479.83 provision. Hot Isostatic Presses (HIP) may also be confused, though they often fall under 8479.89 or other headings depending on their heating elements.
Top exporters and importers of HS 847983 (the code used for cold isostatic press), 2025
In 2025, the largest exporter of HS 847983 (the code used for cold isostatic press) in UN Comtrade data was the United Kingdom, with 21% of world exports; the largest importer in UN Comtrade data was the United Kingdom, with 17% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 847983, not only cold isostatic press.
Top exporters 2025 · share of world exports
- 1 United Kingdom $15M 21% of world exports
- 2 France $12M 17% of world exports
- 3 United States $9.8M 14% of world exports
World total: $72M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United Kingdom $18M 17% of world imports
- 2 China $15M 14% of world imports
- 3 France $13M 12% of world imports
World total: $108M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for cold isostatic press
Brazil classifies cold isostatic press under NCM 8479.83.00: HS 8479.83 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about cold isostatic press
What is the HS code for Cold isostatic press?
The HS code for Cold isostatic press is 847983 (Machines and mechanical appliances; cold isostatic presses). The specific HS code for cold isostatic presses is 8479.83.
How do I classify Cold isostatic press for customs?
Cold isostatic press is classified under HS code 847983 — Machines and mechanical appliances; cold isostatic presses. This is a 6-digit subheading level code.
Why is it not classified as a standard hydraulic press?
Standard hydraulic presses (8462) are generally for working solid materials, whereas isostatic presses (8479.83) apply multi-directional pressure to powders or materials in flexible molds, a distinct mechanical function.
Which countries are the top exporters of cold isostatic press (HS 847983)?
In 2025, the top exporters of HS 847983 (the code used for cold isostatic press) in UN Comtrade data were the United Kingdom ($15M, 21% of world exports), France ($12M) and the United States ($9.8M). World exports came to about $72M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of cold isostatic press (HS 847983)?
In 2025, the top importers of HS 847983 (the code used for cold isostatic press) in UN Comtrade data were the United Kingdom ($18M, 17% of world imports), China ($15M) and France ($13M). World imports came to about $108M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Cold isostatic press the same in all countries?
The base HS code 847983 for Cold isostatic press is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for cold isostatic press in Brazil?
In Brazil, cold isostatic press (HS 847983) is classified under NCM 8479.83.00.