HS code · 6-digit subheading
HS Code 8460.23 – Machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled
HS code 8460.23 is the 6-digit subheading for machine-tools, cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled. It is used for CNC universal cylindrical grinder, CNC external cylindrical grinder, CNC internal cylindrical grinder, CNC angular plunge cylindrical grinder and CNC multi-axis cylindrical grinder.
What HS 8460.23 covers
This HS code covers numerically controlled cylindrical grinding machines, excluding flat-surface and centerless types. These sophisticated CNC machines are engineered for grinding the external or internal diameters of cylindrical workpieces held between centers, offering exceptional precision and surface finish. They are indispensable for manufacturing critical components such as crankshafts, camshafts, hydraulic cylinders, and precision shafts in the automotive, aerospace, and heavy machinery sectors. Trade in these machines is driven by the global demand for high-quality, high-tolerance parts, with advanced manufacturing nations typically exporting to industrial hubs worldwide that require cutting-edge production capabilities.
- Covers
- CNC universal cylindrical grinder
- CNC external cylindrical grinder
- CNC internal cylindrical grinder
- CNC angular plunge cylindrical grinder
- CNC multi-axis cylindrical grinder
- Examples
- Studer S33
- Kellenberger 100
- Schaudt CamGrind
- Danobat HG-72
- Junker Lean Selection
Codes often confused with 8460.23
Common mistake. Can be mistaken for 846022 (CNC centerless grinders) if the distinction of workpiece holding (between centers vs. no centers) is not clear, or 846029 (other non-CNC grinding machines) if the CNC capability is missed.
Top exporters and importers of HS code 846023, 2025
In 2025, the largest exporter of HS code 846023 in UN Comtrade data was Germany, with 30% of world exports; the largest importer in UN Comtrade data was China, with 24% 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 $265M 30% of world exports
- 2 Switzerland $193M 22% of world exports
- 3 Italy $64M 7.3% of world exports
World total: $875M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $182M 24% of world imports
- 2 Germany $118M 15% of world imports
- 3 United States $98M 13% of world imports
World total: $774M 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 8460.23
Brazil does not split HS 8460.23: its NCM code is 8460.23.00.
All Brazil NCM codes in heading 84.60 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8460.23
What is HS code 846023?
HS code 846023 is a 6-digit subheading in the Harmonized System that covers: Machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled. This HS code covers numerically controlled cylindrical grinding machines, excluding flat-surface and centerless types. These sophisticated CNC machines are engineered for grinding the external or internal diameters of cylindrical workpieces held between centers, offering exceptional precision and surface finish. They are indispensable for manufacturing critical components such as crankshafts, camshafts, hydraulic cylinders, and precision shafts in the automotive, aerospace, and heavy machinery sectors. Trade in these machines is driven by the global demand for high-quality, high-tolerance parts, with advanced manufacturing nations typically exporting to industrial hubs worldwide that require cutting-edge production capabilities.
What products fall under HS code 846023?
CNC universal cylindrical grinder, CNC external cylindrical grinder, CNC internal cylindrical grinder, CNC angular plunge cylindrical grinder, CNC multi-axis cylindrical grinder
What are common misclassifications for HS code 846023?
Can be mistaken for 846022 (CNC centerless grinders) if the distinction of workpiece holding (between centers vs. no centers) is not clear, or 846029 (other non-CNC grinding machines) if the CNC capability is missed.
Which countries are the top exporters of goods under HS code 846023?
In 2025, the top exporters of HS code 846023 in UN Comtrade data were Germany ($265M, 30% of world exports), Switzerland ($193M) and Italy ($64M). World exports came to about $875M, 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 846023?
In 2025, the top importers of HS code 846023 in UN Comtrade data were China ($182M, 24% of world imports), Germany ($118M) and the United States ($98M). World imports came to about $774M, 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 846023 structured?
HS code 846023 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (60) identify the heading, and digits 5-6 (23) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 846023?
In Brazil, HS code 846023 is NCM 8460.23.00. The last two digits are 00 because Brazil does not split this HS code further.