Wafer Crystal Grinder Coolant Heat Exchanger
A compact coolant-to-water heat exchanger for crystal grinders, maintaining boule grinding temperatures to precise diameters for wafer slicing. It is a part of machinery for the treatment of materials by a process involving a change of temperature, classified under tariff item 8419.90.00.
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 imported as an integral part of a grinding machine
Grinding machines for working stone, ceramics, or similar materials are classified in heading 84.64, and their parts may be classified with the machine.
If the heat exchanger is presented as a part of semiconductor manufacturing machinery
Parts of machines for the manufacture of semiconductors are classified in heading 84.86.
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
• Classify the heat exchanger as a part of the grinding machine if it is presented separately, but be aware that if it is imported with the grinder, it may be classified as part of the complete machine
• Keep records of the end-use in semiconductor wafer preparation to support the classification
• Check if the product is eligible for duty relief under the Customs Tariff's provisions for goods used in manufacturing
Related Products under Tariff item 8419.90.00
Acrylic Acid Reactor Salt Circulation Piping
A high-temperature piping manifold distributing molten salt coolant around an acrylic acid reactor shell, constructed from alloy for thermal shock resistance. It is a part of machinery for the treatment of materials by a process involving a change of temperature, classified under tariff item 8419.90.00.
Acrylic Acid Reactor Salt Pump Impeller
A specialized impeller for circulating molten salt coolant in acrylic acid reactor heat management systems, constructed from corrosion-resistant alloy. It is a part of machinery for the treatment of materials by a process involving a change of temperature, classified under tariff item 8419.90.00.
Anode Rod for Storage Water Heater Tanks
A magnesium sacrificial anode rod designed for installation inside storage water heater tanks to prevent corrosion. It is a dedicated part for non-electric storage water heaters, which fall under heading 84.19 as machinery for the treatment of materials by a process involving a change of temperature.
Autoclave Sterilization Chamber
The main pressure vessel component of a laboratory autoclave used for high-pressure steam sterilization of medical instruments and glassware. It is a part of machinery for the treatment of materials by a process involving a change of temperature, classified under tariff item 8419.90.00.
Burner Assembly for Gas Instantaneous Water Heaters
A pre-assembled gas burner manifold with injectors and ignition components for non-electric tankless water heaters. This assembly is integral to the combustion process in instantaneous water heaters, which are classified under heading 84.19 as machinery for temperature change treatment.
Chemical Vapor Deposition Chamber Heat Exchanger
An immersion-type heat exchanger for CVD chambers, preheating carrier gases for uniform semiconductor thin film deposition on wafers. It is a part of heat exchange units in vapor deposition temperature control, classified under 8419.90.00.