Product classification
HS code for Rotor balancer: 9031.10
Machines, for balancing mechanical parts.
Classification of rotor balancer under HS 9031.10
Rotor balancers are classified under HS code 9031.10. This classification is situated within Chapter 90, which encompasses optical, measuring, checking, and precision instruments. The fundamental purpose of a rotor balancer is to measure the distribution of mass within a rotating mechanical part and to identify the location and magnitude of any unbalance. According to the General Rules of Interpretation (GRI), products are classified based on their primary function. Since the rotor balancer's function is 'checking' and 'measuring' rather than performing a mechanical operation like cutting or joining, it is excluded from the general machinery of Chapter 84. Subheading 9031.10 is specifically dedicated to machines for balancing mechanical parts, making it the most specific and appropriate code. This applies to a wide range of equipment, from small high-speed dental drill balancers to massive industrial turbine rotor balancers, provided they utilize sensors and instrumentation to detect rotational variance.
- Covers
- Dynamic balancing machines for crankshafts
- Static balancing stands for fans and impellers
- Hard-bearing and soft-bearing balancing machines
- Automatic balancing stations for electric motor armatures
- Turbine and compressor rotor balancers
- Universal horizontal balancing machines
- Also under 9031.10
- Schenck HM series
- Hofmann Balancing Machines
- Cemb K-series
- Fives Landis Gardner balancing machines
Codes often confused with 9031.10
Common mistake. A common misclassification for rotor balancers is HS code 8479.89, which covers 'other' machines and mechanical appliances having individual functions. However, because the machine's primary purpose is measurement and checking, Chapter 90 takes precedence over Chapter 84. Additionally, some importers mistakenly use 9031.80, which is the general category for 'other' measuring or checking instruments. Since 9031.10 specifically mentions 'machines for balancing mechanical parts,' it must be used instead of the more general 9031.80. Handheld vibration meters are also sometimes confused with balancers, but those are classified under 9031.80 as they do not perform the balancing operation themselves.
Top exporters and importers of HS 903110 (the code used for rotor balancer), 2025
In 2025, the largest exporter of HS 903110 (the code used for rotor balancer) in UN Comtrade data was Italy, with 21% of world exports; the largest importer in UN Comtrade data was China, with 12% 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 903110, not only rotor balancer.
Top exporters 2025 · share of world exports
- 1 Italy $112M 21% of world exports
- 2 China $105M 20% of world exports
- 3 Germany $71M 13% of world exports
World total: $534M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $59M 12% of world imports
- 2 Germany $34M 6.8% of world imports
- 3 United States $33M 6.6% of world imports
World total: $493M 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 rotor balancer
Brazil classifies rotor balancer under NCM 9031.10.00: HS 9031.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about rotor balancer
What is the HS code for Rotor balancer?
The HS code for Rotor balancer is 903110 (Machines; for balancing mechanical parts). The correct HS code for a rotor balancer is 9031.10, specifically for machines designed to balance mechanical parts.
How do I classify Rotor balancer for customs?
Rotor balancer is classified under HS code 903110 — Machines; for balancing mechanical parts. This is a 6-digit subheading level code.
Are portable vibration analyzers classified here?
No, portable vibration analyzers that only measure vibration without a balancing mechanism are generally classified under HS code 9031.80.
Which countries are the top exporters of rotor balancer (HS 903110)?
In 2025, the top exporters of HS 903110 (the code used for rotor balancer) in UN Comtrade data were Italy ($112M, 21% of world exports), China ($105M) and Germany ($71M). World exports 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.
Which countries are the top importers of rotor balancer (HS 903110)?
In 2025, the top importers of HS 903110 (the code used for rotor balancer) in UN Comtrade data were China ($59M, 12% of world imports), Germany ($34M) and the United States ($33M). World imports came to about $493M, 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 Rotor balancer the same in all countries?
The base HS code 903110 for Rotor balancer 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 rotor balancer in Brazil?
In Brazil, rotor balancer (HS 903110) is classified under NCM 9031.10.00.