Product classification
HS code for Inner tube molding machine: 8477.51
Machinery, for moulding or retreading pneumatic tyres or for moulding or otherwise forming inner tubes.
Classification of inner tube molding machine under HS 8477.51
The classification of an inner tube molding machine under HS code 8477.51 is determined by its specific function within the rubber and plastics industry. Chapter 84 of the Harmonized System encompasses nuclear reactors, boilers, machinery, and mechanical appliances. Within this chapter, heading 8477 is dedicated to machinery for working rubber or plastics or for the manufacture of products from these materials, not specified or included elsewhere in the chapter. Subheading 8477.51 is a specific provision for machinery used for molding or retreading pneumatic tires or for molding or otherwise forming inner tubes. This classification takes precedence over more general machinery codes because it describes the machine's primary purpose with high specificity. The technical nature of these machines involves the application of heat and pressure to raw rubber compounds within a mold to create the airtight toroidal shape required for pneumatic assemblies. The machinery typically includes hydraulic systems, heating elements, and precision molds designed to handle butyl or natural rubber compounds.
- Covers
- Automatic inner tube vulcanizing presses
- Inner tube curing presses
- Injection molding machines specifically for rubber tubes
- Compression molding machines for inner tube production
- Dual-cavity tube molding machines
- Also under 8477.51
- VMI Tire Building Machines
- HF Group Tire Curing Presses
- Marangoni Retreading Equipment
- Kobe Steel Tire & Rubber Machinery
Codes often confused with 8477.51
Common mistake. These machines are frequently misclassified under HS code 8477.10, which covers general injection-molding machines, or 8477.80, which covers other machinery for working rubber or plastics. However, because 8477.51 specifically mentions the forming of inner tubes, General Interpretative Rule 3(a) requires the use of the most specific description. Additionally, they should not be confused with 8477.59, which is reserved for molding machinery other than those for tires or tubes.
Top exporters and importers of HS 847751 (the code used for inner tube molding machine), 2025
In 2025, the largest exporter of HS 847751 (the code used for inner tube molding machine) in UN Comtrade data was China, with 52% of world exports; the largest importer in UN Comtrade data was Cambodia, with about 23% 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 847751, not only inner tube molding machine.
Top exporters 2025 · share of world exports
- 1 China $402M 52% of world exports
- 2 Netherlands $170M 22% of world exports
- 3 Germany $52M 6.7% of world exports
World total: $773M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Cambodia* ~$120M 23% of world imports · partner records ↗
- 2 Indonesia $107M 20% of world imports
- 3 United States $83M 16% of world imports
World total: $534M 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 inner tube molding machine
Brazil classifies inner tube molding machine under NCM 8477.51.00: HS 8477.51 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about inner tube molding machine
What is the HS code for Inner tube molding machine?
The HS code for Inner tube molding machine is 847751 (Machinery; for moulding or retreading pneumatic tyres or for moulding or otherwise forming inner tubes). The primary HS code for an inner tube molding machine is 8477.51, which covers machinery for molding or otherwise forming inner tubes.
How do I classify Inner tube molding machine for customs?
Inner tube molding machine is classified under HS code 847751 — Machinery; for moulding or retreading pneumatic tyres or for moulding or otherwise forming inner tubes. This is a 6-digit subheading level code.
Does this code include the molds themselves?
No, the interchangeable molds used within the machine are typically classified separately under heading 8480, specifically 8480.71 for injection or compression types for rubber or plastics.
Which countries are the top exporters of inner tube molding machine (HS 847751)?
In 2025, the top exporters of HS 847751 (the code used for inner tube molding machine) in UN Comtrade data were China ($402M, 52% of world exports), the Netherlands ($170M) and Germany ($52M). World exports came to about $773M, 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 inner tube molding machine (HS 847751)?
In 2025, the top importers of HS 847751 (the code used for inner tube molding machine) in UN Comtrade data were Cambodia (about $120M, 23% of world imports), Indonesia ($107M) and the United States ($83M). World imports came to about $534M, 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 Inner tube molding machine the same in all countries?
The base HS code 847751 for Inner tube molding machine 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 inner tube molding machine in Brazil?
In Brazil, inner tube molding machine (HS 847751) is classified under NCM 8477.51.00.