HS code · 6-digit subheading
HS Code 9032.81 – Regulating or controlling instruments and apparatus; automatic, hydraulic or pneumatic
HS code 9032.81 is the 6-digit subheading for regulating or controlling instruments and apparatus, automatic, hydraulic or pneumatic. It is used for hydraulic proportional valves, pneumatic actuators with integrated controllers, hydraulic pressure relief valves with automatic control, pneumatic flow controllers and servo-hydraulic systems.
What HS 9032.81 covers
This HS code covers automatic regulating or controlling instruments and apparatus that operate using hydraulic or pneumatic power. These sophisticated devices are integral to heavy machinery, industrial automation, aerospace, and oil & gas sectors, where robust and powerful control is required. Importers are typically manufacturers of industrial equipment, system integrators, and companies involved in large-scale infrastructure projects. Exporters are often countries with strong engineering traditions and expertise in fluid power systems. Trade in these goods emphasizes precision, durability, and the ability to operate in demanding environments, reflecting their critical role in controlling high-force applications and complex industrial processes with accuracy and reliability.
- Covers
- Hydraulic proportional valves
- Pneumatic actuators with integrated controllers
- Hydraulic pressure relief valves with automatic control
- Pneumatic flow controllers
- Servo-hydraulic systems
- Air logic controllers
- Electro-pneumatic positioners
- Examples
- Bosch Rexroth Proportional Directional Valves
- SMC ITV Electro-Pneumatic Regulators
- Parker Hydraulic Control Units
- Festo CPX-E Automation Platform
Codes often confused with 9032.81
Common mistake. These can be confused with non-automatic hydraulic or pneumatic components (e.g., 8412 for power engines, 8481 for taps/valves) if their specific 'automatic regulating/controlling' function is not clearly identified.
Top exporters and importers of HS code 903281, 2025
In 2025, the largest exporter of HS code 903281 in UN Comtrade data was Germany, with 48% of world exports; the largest importer in UN Comtrade data was Türkiye, with 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $1.4B 48% of world exports
- 2 France $341M 12% of world exports
- 3 China $215M 7.6% of world exports
World total: $2.8B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Türkiye $200M 12% of world imports
- 2 Germany $155M 9.0% of world imports
- 3 China $145M 8.4% of world imports
World total: $1.7B 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 9032.81
Brazil does not split HS 9032.81: its NCM code is 9032.81.00.
All Brazil NCM codes in heading 90.32 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 9032.81
What is HS code 903281?
HS code 903281 is a 6-digit subheading in the Harmonized System that covers: Regulating or controlling instruments and apparatus; automatic, hydraulic or pneumatic. This HS code covers automatic regulating or controlling instruments and apparatus that operate using hydraulic or pneumatic power. These sophisticated devices are integral to heavy machinery, industrial automation, aerospace, and oil & gas sectors, where robust and powerful control is required. Importers are typically manufacturers of industrial equipment, system integrators, and companies involved in large-scale infrastructure projects. Exporters are often countries with strong engineering traditions and expertise in fluid power systems. Trade in these goods emphasizes precision, durability, and the ability to operate in demanding environments, reflecting their critical role in controlling high-force applications and complex industrial processes with accuracy and reliability.
What products fall under HS code 903281?
Hydraulic proportional valves, pneumatic actuators with integrated controllers, hydraulic pressure relief valves with automatic control, pneumatic flow controllers, servo-hydraulic systems, air logic controllers, electro-pneumatic positioners
What are common misclassifications for HS code 903281?
These can be confused with non-automatic hydraulic or pneumatic components (e.g., 8412 for power engines, 8481 for taps/valves) if their specific 'automatic regulating/controlling' function is not clearly identified.
Which countries are the top exporters of goods under HS code 903281?
In 2025, the top exporters of HS code 903281 in UN Comtrade data were Germany ($1.4B, 48% of world exports), France ($341M) and China ($215M). World exports came to about $2.8B, 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 goods under HS code 903281?
In 2025, the top importers of HS code 903281 in UN Comtrade data were Türkiye ($200M, 12% of world imports), Germany ($155M) and China ($145M). World imports came to about $1.7B, 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.
How is HS code 903281 structured?
HS code 903281 is a 6-digit subheading under the Harmonized System. The first 2 digits (90) identify the chapter, digits 3-4 (32) identify the heading, and digits 5-6 (81) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 903281?
In Brazil, HS code 903281 is NCM 9032.81.00. The last two digits are 00 because Brazil does not split this HS code further.