Product classification
HS code for Doubling machine: 8445.30
Textile machinery, doubling or twisting machines.
Classification of doubling machine under HS 8445.30
Doubling machines are classified under HS code 8445.30. This code is part of Chapter 84, which encompasses nuclear reactors, boilers, machinery, and mechanical appliances. Specifically, heading 8445 covers machines for preparing textile fibers, spinning, doubling, or twisting machines. Doubling machines are essential in the textile industry for combining two or more yarns into a single strand, often as a precursor to the twisting process. The classification is determined by the machine's specific function in the textile production chain. Because these machines are designed for the processing of textile yarns rather than the initial preparation of raw fibers or the final weaving and knitting processes, they are categorized under the 8445.30 subheading. The classification applies to machines processing both natural and man-made fibers, provided the mechanical action is that of doubling or twisting.
- Covers
- Ring doubling machines
- Two-for-one (TFO) twisting machines
- Fancy twisters for decorative yarns
- Up-twisters and down-twisters
- Assembly winding machines used for doubling
- Industrial yarn doubling equipment
- Also under 8445.30
- Saurer Volkmann Two-for-One Twisters
- Savio Twisting Machines
- Murata Twisting Machines
- Lezzeni Doubling Machines
- SSM Doubling Winders
Codes often confused with 8445.30
Common mistake. Doubling machines are often misclassified under HS code 8444.00, which is for machines extruding or drawing man-made textile materials. They may also be confused with HS code 8446 (weaving machines) or HS code 8447 (knitting machines). Additionally, parts for these machines should be classified under 8448.33 rather than the machine code itself. It is vital to distinguish between the preparation of fibers (8445.11-8445.19) and the doubling of already spun yarns (8445.30).
Top exporters and importers of HS 844530 (the code used for doubling machine), 2025
In 2025, the largest exporter of HS 844530 (the code used for doubling machine) in UN Comtrade data was China, with 46% of world exports; the largest importer in UN Comtrade data was Türkiye, 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 844530, not only doubling machine.
Top exporters 2025 · share of world exports
- 1 China $59M 46% of world exports
- 2 Italy $21M 16% of world exports
- 3 Germany $15M 12% of world exports
World total: $129M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Türkiye $23M 17% of world imports
- 2 Vietnam* ~$10.0M 7.7% of world imports · partner records ↗
- 3 Thailand $8.1M 6.2% of world imports
World total: $129M 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 codes for doubling machine
Brazil splits HS 8445.30 into 2 NCM codes. Pick the one that matches your product:
- 8445.30.10Textile twisting machines
- 8445.30.90Other textile doubling or twisting machines
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about doubling machine
What is the HS code for Doubling machine?
The HS code for Doubling machine is 844530 (Textile machinery; doubling or twisting machines). The HS code for doubling or twisting machines used in textile production is 8445.30.
How do I classify Doubling machine for customs?
Doubling machine is classified under HS code 844530 — Textile machinery; doubling or twisting machines. This is a 6-digit subheading level code.
Does this code include machines for synthetic fibers?
Yes, HS code 8445.30 covers doubling and twisting machines regardless of whether they are processing natural fibers like cotton and wool or synthetic filaments and yarns.
Which countries are the top exporters of doubling machine (HS 844530)?
In 2025, the top exporters of HS 844530 (the code used for doubling machine) in UN Comtrade data were China ($59M, 46% of world exports), Italy ($21M) and Germany ($15M). World exports came to about $129M, 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 doubling machine (HS 844530)?
In 2025, the top importers of HS 844530 (the code used for doubling machine) in UN Comtrade data were Türkiye ($23M, 17% of world imports), Vietnam (about $10.0M) and Thailand ($8.1M). World imports came to about $129M, 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 Doubling machine the same in all countries?
The base HS code 844530 for Doubling 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 doubling machine in Brazil?
Brazil splits HS 844530 into 2 NCM codes, so the right one for doubling machine depends on the product's details: 8445.30.10 (Textile twisting machines), 8445.30.90 (Other textile doubling or twisting machines).