Rebuilt Crystal Flat Grinder
A rebuilt flat grinder used to grind orientation flats on silicon boules, marking resistivity and doping type for wafer identification in semiconductor fabrication. It works on cermets (silicon) without removing material, which places it under tariff item 8463.90.00 as other machine-tools for working metal or cermets without removing material.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the grinder is designed primarily for glass or ceramic materials
Grinders for glass, ceramics or similar materials fall under heading 84.64, not 84.63.
If the machine performs a specific function other than grinding
Machines with a specific function not covered by other headings may fall under 84.79.
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 grinder is rebuilt and not new to qualify for the used machinery provisions; have documentation of the rebuild
• Verify whether the silicon boules are considered cermets for classification purposes and keep records of the machine's original specifications
• Check if the grinder requires an import permit under Canada's controls on used machinery
Related Products under Tariff item 8463.90.00
Benchtop Metal Beading Machine
A benchtop metal beading machine creates decorative and strengthening beads on sheet metal edges via rotary forming, without removing material. This machine falls under this tariff item as a machine-tool for working metal by deformation, specifically beading, which is a common metalworking process.
CNC Laser Cutting Machine
A CNC laser cutting machine uses a high-powered laser beam to melt and vaporize metal, producing precise shapes in sheets without traditional material removal via cutting tools. It falls under this tariff item as a machine-tool for working metal without removing material, as the process relies on thermal deformation and vaporization rather than mechanical cutting.
CNC Laser Tube Bender
A precision machine tool that bends metal tubes using laser measurement and CNC control without removing material, ideal for automotive exhaust systems. It falls under tariff item 8463.90.00 as it works metal through deformation processes without material removal.
CNC Rotary Metal Swaging Machine
A CNC-controlled rotary swaging machine that reduces the diameter of metal tubes through high-speed hammering, without removing any material. This deformation process falls under tariff item 8463.90.00, which covers machine-tools for working metal without removing material.
CNC Router Spindle for Small Metal Parts
A high-speed spindle unit used in compact CNC routers for milling and engraving soft metals like aluminum without material removal through cutting. It falls under tariff item 8463.90.00 as a machine-tool component for working metal or cermets without removing material, specifically for forming or deformation processes.
Electro-Hydraulic Metal Stamper
An electro-hydraulic metal stamper that uses high-speed electric discharge to generate hydraulic pulses for deep drawing metal sheets without dies. This innovative stamping process works metal without removing material, placing it under tariff item 8463.90.00.