Product classification
HS code for CNC centerless grinder: 8460.22
Machine-tools, grinding machines (excluding flat-surface), centreless, numerically controlled.
Classification of CNC centerless grinder under HS 8460.22
HS code 846022 specifically covers machine-tools designed for grinding operations, characterized by their \"centreless\" design and \"numerically controlled\" (CNC) functionality. This classification is applied to machines that remove material from workpieces through abrasive processes, where the workpiece is supported by a work rest blade and regulating wheel rather than being held between centers. The \"numerically controlled\" aspect signifies that the machine's operations, such as feed rates, grinding wheel speeds, and workpiece dimensions, are precisely controlled by a computer program, enabling high precision, repeatability, and automation. This code precisely distinguishes these sophisticated machines from conventional or non-CNC grinding machines, as well as from other types of grinding machines that utilize different workpiece holding methods or are designed for different surface geometries, ensuring accurate international trade classification.
- Covers
- CNC centerless grinding machines
- Automated centerless grinders with numerical control
- Precision centerless grinding systems
- Through-feed centerless grinders (CNC)
- In-feed centerless grinders (CNC)
- Also under 8460.22
- Koyo KC-300CNC
- Cincinnati Milacron 220-8
- TGS-CL-6020CNC
- Royal Master TG-12x4
- Micron CNC Centerless Grinder
Codes often confused with 8460.22
Common mistake. A common misclassification occurs with HS 846023, which covers \"Machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled.\" The fundamental distinction lies in the workpiece support method: 846022 is specifically for centreless grinding, where the workpiece is not held between centers, whereas 846023 applies to cylindrical grinders that typically hold the workpiece between centers. Another potential area of confusion is with HS 846024, a residual category for \"other\" numerically controlled grinding machines. However, 846022 is a more specific and appropriate classification for dedicated centreless grinders, and should be prioritized when the machine's characteristics align with this description.
Top exporters and importers of HS 846022 (the code used for CNC centerless grinder), 2025
In 2025, the largest exporter of HS 846022 (the code used for CNC centerless grinder) in UN Comtrade data was Switzerland, with 18% of world exports; the largest importer in UN Comtrade data was China, with 19% 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 846022, not only CNC centerless grinder.
Top exporters 2025 · share of world exports
- 1 Switzerland $23M 18% of world exports
- 2 Japan $23M 17% of world exports
- 3 Italy $23M 17% of world exports
World total: $133M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $23M 19% of world imports
- 2 Germany $15M 13% of world imports
- 3 United States $15M 12% of world imports
World total: $122M 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 CNC centerless grinder
Brazil classifies CNC centerless grinder under NCM 8460.22.00: HS 8460.22 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about CNC centerless grinder
What is the HS code for CNC centerless grinder?
The HS code for CNC centerless grinder is 846022 (Machine-tools; grinding machines (excluding flat-surface), centreless, numerically controlled). The HS code for a CNC centerless grinder is 846022. This code specifically identifies numerically controlled machine-tools for centreless grinding operations, ensuring precise customs classification.
How do I classify CNC centerless grinder for customs?
CNC centerless grinder is classified under HS code 846022 — Machine-tools; grinding machines (excluding flat-surface), centreless, numerically controlled. This is a 6-digit subheading level code.
What is the primary advantage of a centerless grinding process?
The primary advantage of centerless grinding is its high production rate, suitability for processing long, slender workpieces or large batches of smaller parts, and the elimination of the need for center holes. This method offers exceptional concentricity, superior surface finish, and reduced setup times, making it highly efficient for mass production of precision components.
Which countries are the top exporters of CNC centerless grinder (HS 846022)?
In 2025, the top exporters of HS 846022 (the code used for CNC centerless grinder) in UN Comtrade data were Switzerland ($23M, 18% of world exports), Japan ($23M) and Italy ($23M). World exports came to about $133M, 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 CNC centerless grinder (HS 846022)?
In 2025, the top importers of HS 846022 (the code used for CNC centerless grinder) in UN Comtrade data were China ($23M, 19% of world imports), Germany ($15M) and the United States ($15M). World imports came to about $122M, 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 CNC centerless grinder the same in all countries?
The base HS code 846022 for CNC centerless grinder 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 CNC centerless grinder in Brazil?
In Brazil, CNC centerless grinder (HS 846022) is classified under NCM 8460.22.00.