HS code · 6-digit subheading
HS Code 8423.20 – Weighing machines; scales for continuous weighing of goods on conveyors
HS code 8423.20 is the 6-digit subheading for weighing machines, scales for continuous weighing of goods on conveyors. It is used for belt weighers, conveyor scales, weigh feeders, loss-in-weight feeders (continuous) and dynamic weighing systems for bulk materials.
What HS 8423.20 covers
This category covers highly specialized weighing machines designed for continuous measurement of bulk materials as they move along conveyor belts. These systems are critical for industries that handle large volumes of loose goods, such as mining, agriculture, construction, and bulk material processing plants. They enable precise inventory management, process control, and accurate billing for bulk shipments. International trade in these sophisticated scales is driven by industrial expansion, infrastructure projects, and the need for automation in material handling. Importers are typically large industrial enterprises, port authorities, and engineering firms involved in plant construction. Exporters are often countries with advanced industrial automation and heavy machinery manufacturing capabilities. Key considerations include accuracy under dynamic conditions, robustness for harsh environments, integration with plant control systems, and compliance with metrological standards.
- Covers
- Belt weighers
- Conveyor scales
- Weigh feeders
- Loss-in-weight feeders (continuous)
- Dynamic weighing systems for bulk materials
- In-motion train weighbridges (for continuous flow)
- Examples
- Schenck Process MULTICOR K
- Siemens Milltronics MSI
- Mettler Toledo VTC Belt Scales
- FLSmidth Weigh Feeders
- Thermo Scientific Ramsey Belt Scales
Codes often confused with 8423.20
Common mistake. This code is specifically for continuous weighing on conveyors and should not be confused with static industrial scales (842381, 842382) or batch weighing systems (842330). The "continuous" aspect is key for classification.
Top exporters and importers of HS code 842320, 2025
In 2025, the largest exporter of HS code 842320 in UN Comtrade data was China, with 16% of world exports; the largest importer in UN Comtrade data was the United States, with 15% 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 China $30M 16% of world exports
- 2 Japan $28M 15% of world exports
- 3 Germany $27M 15% of world exports
World total: $182M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $30M 15% of world imports
- 2 Netherlands $19M 9.6% of world imports
- 3 Thailand $10M 5.2% of world imports
World total: $202M 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 8423.20
Brazil does not split HS 8423.20: its NCM code is 8423.20.00.
All Brazil NCM codes in heading 84.23 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8423.20
What is HS code 842320?
HS code 842320 is a 6-digit subheading in the Harmonized System that covers: Weighing machines; scales for continuous weighing of goods on conveyors. This category covers highly specialized weighing machines designed for continuous measurement of bulk materials as they move along conveyor belts. These systems are critical for industries that handle large volumes of loose goods, such as mining, agriculture, construction, and bulk material processing plants. They enable precise inventory management, process control, and accurate billing for bulk shipments. International trade in these sophisticated scales is driven by industrial expansion, infrastructure projects, and the need for automation in material handling. Importers are typically large industrial enterprises, port authorities, and engineering firms involved in plant construction. Exporters are often countries with advanced industrial automation and heavy machinery manufacturing capabilities. Key considerations include accuracy under dynamic conditions, robustness for harsh environments, integration with plant control systems, and compliance with metrological standards.
What products fall under HS code 842320?
Belt weighers, Conveyor scales, Weigh feeders, Loss-in-weight feeders (continuous), Dynamic weighing systems for bulk materials, In-motion train weighbridges (for continuous flow)
What are common misclassifications for HS code 842320?
This code is specifically for continuous weighing on conveyors and should not be confused with static industrial scales (842381, 842382) or batch weighing systems (842330). The "continuous" aspect is key for classification.
Which countries are the top exporters of goods under HS code 842320?
In 2025, the top exporters of HS code 842320 in UN Comtrade data were China ($30M, 16% of world exports), Japan ($28M) and Germany ($27M). World exports came to about $182M, 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 842320?
In 2025, the top importers of HS code 842320 in UN Comtrade data were the United States ($30M, 15% of world imports), the Netherlands ($19M) and Thailand ($10M). World imports came to about $202M, 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 842320 structured?
HS code 842320 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (23) identify the heading, and digits 5-6 (20) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 842320?
In Brazil, HS code 842320 is NCM 8423.20.00. The last two digits are 00 because Brazil does not split this HS code further.