Product classification
HS code for Ceramic grinding wheels: 6804.22
Millstones, grindstones, grinding wheels and the like, of other agglomerated abrasives or of ceramics.
Classification of ceramic grinding wheels under HS 6804.22
Ceramic grinding wheels are classified under HS code 680422 because they are composed of abrasive grains, such as aluminum oxide or silicon carbide, which are bonded together using a vitrified or ceramic binder. This classification falls under Chapter 68, which covers articles of stone, plaster, cement, and similar materials. Heading 6804 specifically addresses millstones, grindstones, and grinding wheels. The subheading 680422 is designated for those made of other agglomerated abrasives or of ceramics, distinguishing them from those made of natural stone or synthetic diamonds. The classification is determined by the bonding material; in this case, the ceramic bond is created by firing a mixture of clays and fluxes at high temperatures, resulting in a glass-like structure that holds the abrasive particles. These wheels are essential in industrial applications for precision grinding, sharpening, and surface finishing of metals and other hard materials. The HS code remains the same regardless of whether the wheel is used for bench grinders, cylindrical grinding, or surface grinding machines, provided the bonding agent is ceramic. The vitrification process ensures that the wheel maintains high rigidity and can withstand significant thermal stress during operation.
- Covers
- Vitrified bond grinding wheels
- Ceramic-bonded abrasive discs
- Sharpening stones made of ceramic-bonded abrasives
- Honing stones and oilstones
- Internal grinding wheels with ceramic bonding
- Mounted points with ceramic abrasive heads
- Also under 6804.22
- Norton Abrasives aluminum oxide wheels
- 3M Cubitron II ceramic abrasives
- Tyrolit resinoid grinding wheels
- Klingspor cut-off wheels
Codes often confused with 6804.22
Common mistake. Ceramic grinding wheels are frequently confused with HS code 680421, which is reserved for wheels made of agglomerated synthetic or natural diamond or cubic boron nitride (CBN). While both are abrasive wheels, the distinction lies in the abrasive material itself. Another common error is classifying these under 8207, which covers interchangeable tools for hand tools. However, 6804 is a more specific heading for the grinding wheels themselves, whereas 8207 typically covers the metal bits or cutters that might be used in conjunction with power tools. Additionally, millstones used specifically for grinding grain or seeds are classified under 680410, regardless of their material composition.
Top exporters and importers of HS 680422 (the code used for ceramic grinding wheels), 2025
In 2025, the largest exporter of HS 680422 (the code used for ceramic grinding wheels) in UN Comtrade data was China, with 32% of world exports; the largest importer in UN Comtrade data was the United States, with 8.6% 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 680422, not only ceramic grinding wheels.
Top exporters 2025 · share of world exports
- 1 China $934M 32% of world exports
- 2 Germany $462M 16% of world exports
- 3 Austria $247M 8.3% of world exports
World total: $3.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $252M 8.6% of world imports
- 2 India $233M 7.9% of world imports
- 3 Germany $228M 7.8% of world imports
World total: $2.9B 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 codes for ceramic grinding wheels
Brazil splits HS 6804.22 into 3 NCM codes. Pick the one that matches your product:
- 6804.22.11Resin-bonded abrasive wheels, under 53.34 cm
- 6804.22.19Other abrasive/ceramic wheels under 53.34 cm
- 6804.22.90Abrasive or ceramic wheels, 53.34 cm or more
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about ceramic grinding wheels
What is the HS code for Ceramic grinding wheels?
The HS code for Ceramic grinding wheels is 680422 (Millstones, grindstones, grinding wheels and the like; of other agglomerated abrasives or of ceramics). The correct HS code for ceramic grinding wheels made of agglomerated abrasives is 680422.
How do I classify Ceramic grinding wheels for customs?
Ceramic grinding wheels is classified under HS code 680422 — Millstones, grindstones, grinding wheels and the like; of other agglomerated abrasives or of ceramics. This is a 6-digit subheading level code.
Can these wheels be used for high-speed applications?
Yes, ceramic-bonded wheels are known for their rigidity and ability to maintain their shape under high-speed and high-pressure conditions, making them ideal for precision industrial grinding.
Which countries are the top exporters of ceramic grinding wheels (HS 680422)?
In 2025, the top exporters of HS 680422 (the code used for ceramic grinding wheels) in UN Comtrade data were China ($934M, 32% of world exports), Germany ($462M) and Austria ($247M). World exports came to about $3.0B, 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 ceramic grinding wheels (HS 680422)?
In 2025, the top importers of HS 680422 (the code used for ceramic grinding wheels) in UN Comtrade data were the United States ($252M, 8.6% of world imports), India ($233M) and Germany ($228M). World imports came to about $2.9B, 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 Ceramic grinding wheels the same in all countries?
The base HS code 680422 for Ceramic grinding wheels 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 ceramic grinding wheels in Brazil?
Brazil splits HS 680422 into 3 NCM codes, so the right one for ceramic grinding wheels depends on the product's details: 6804.22.11 (Resin-bonded abrasive wheels, under 53.34 cm), 6804.22.19 (Other abrasive/ceramic wheels under 53.34 cm), 6804.22.90 (Abrasive or ceramic wheels, 53.34 cm or more).