CNC Internal Grinding Machine
A CNC internal grinding machine is a precision numerically controlled grinder for bores and internal diameters in metal parts like engine cylinders, using small abrasive wheels. It falls under tariff item 8460.24.00 as a numerically controlled other grinding machine for metal.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the machine is not numerically controlled
Internal grinders without NC are under other grinding machines.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the machine is declared as numerically controlled for internal metal grinding
• Provide CBSA with specifications showing NC operation
• Check if the machine requires any special import permits
Related Products under Tariff item 8460.24.00
CNC Belt Grinding Machine
A CNC belt grinding machine uses an abrasive belt under numerical control to finish contoured metal surfaces such as aerospace forgings, ensuring consistent material removal. It falls under tariff item 8460.24.00 as a numerically controlled grinding machine for metal, not involving gear cutting.
CNC Camshaft Grinding Machine
A CNC camshaft grinding machine is a numerically controlled grinder for camshaft lobes and journals, achieving precise profiles via abrasive wheels. It qualifies under tariff item 8460.24.00 as an other numerically controlled grinding machine for metal, excluding gear grinding.
CNC Centerless Grinding Machine
A CNC centerless grinding machine is numerically controlled and removes material from cylindrical metal parts using abrasive wheels to achieve precise diameters and finishes. It falls under tariff item 8460.24.00 as an other numerically controlled grinding machine for metal.
CNC Crankshaft Grinding Machine
A CNC crankshaft grinding machine is a numerically controlled grinder for engine crankshaft journals and pins, ensuring balance and diameter precision via abrasives. It falls under tariff item 8460.24.00 as an other numerically controlled grinding machine for metal, not gear-related.
CNC Creep Feed Grinding Machine
A CNC creep feed grinding machine uses slow feed rates and high stock removal under numerical control for deep slots in turbine blades and aerospace parts. It qualifies under tariff item 8460.24.00 as a numerically controlled grinding machine for metal, excluding gear grinding.
CNC Cylindrical Grinding Machine
A CNC cylindrical grinding machine performs external and internal grinding of cylindrical metal components like bearings and pistons using abrasive wheels for high-precision finishing. It matches tariff item 8460.24.00 as an other numerically controlled grinding machine for metal.