Wafer Slicing Saw Air Filtration Unit
A dust collection and mist filtration system for inner diameter saws that slice semiconductor wafers from crystal boules, capturing silicon particles and coolant aerosols. This unit falls under tariff item 8421.39.00 as gas filtering machinery for the cutting process.
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 filtration unit is an integral part of the slicing saw
Parts for machine tools are classified under the parts heading for the specific machine type.
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 filtration unit is declared as a complete machine for gas purification, not as an accessory to the saw
• Provide specifications of the coolant mist and particle capture for CBSA verification
• Consider whether the unit is designed for continuous operation in a cleanroom environment
Related Products under Tariff item 8421.39.00
300mm Silicon Wafer Prep Dust Extraction Hood
A localized dust collection hood for 300mm wafer preparation lines, filtering process-generated airborne particles. It is used in slicing, grinding, and polishing stations. Classified under 8421.39.00 as gas filtering machinery, with specific relevance to semiconductor manufacturing.
3D Printer Resin Vapor Extractor
An enclosed carbon bed extractor designed to capture toxic resin vapors emitted by SLA/DLP 3D printers during prototyping. It uses activated carbon filtration to adsorb volatile organic compounds (VOCs) and odors, making it suitable for hobbyist and maker spaces. This product falls under tariff item 8421.39.00 as other filtering or purifying machinery for gases.
Activated Carbon Gas Adsorber
A canister filled with activated carbon media designed to adsorb volatile organic compounds (VOCs) and odors from air streams in ventilation systems. It functions as a gas purifying apparatus by trapping contaminants through adsorption. This product is correctly classified under tariff item 8421.39.00 as other filtering or purifying machinery for gases.
Allergen-Reducing Bedroom Air Cleaner
A quiet, low-energy air cleaner with multi-stage filtration including a pre-filter, HEPA filter, and activated carbon, designed for bedrooms to trap pet dander and mold spores. It purifies indoor air by filtering particulates and adsorbing odors. This product falls under tariff item 8421.39.00 as other filtering or purifying machinery for gases.
Boule Flatting Grinder Filtration System
An air purification module for grinders that create orientation flats on semiconductor crystal boules. It captures grinding dust to protect wafer yield. Classified under 8421.39.00 as gas filtering machinery for semiconductor manufacturing.
CNC Grinder Particulate Air Cleaner
A high-velocity air cleaner designed for surface grinders, capturing abrasive dust and grinding wheel particles. It features self-cleaning pulse-jet filters to maintain precision tolerances in metalworking environments. Classified under tariff item 8421.39.00 as filtering machinery for gases.