Servo-Controlled Electrical Valve for Wafer Grinder Diamond Slurry

Servo-actuated electrical valve maintains constant diamond slurry pressure in wafer grinders for semiconductor boule preparation. Classified HTS 8481.80.9025 for precision electrical valves in wafer manufacturing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2%+35.0%37%
🇲🇽Mexico2%+10.0%12%
🇨🇦Canada2%+10.0%12%
🇩🇪Germany2%+10.0%12%
🇯🇵Japan2%+10.0%12%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8505.90.70.00Lower: 35% vs 37%

If electromagnetic components dominate classification

Electromagnets or assemblies may classify under Chapter 85.

8481.90.90Lower: 35% vs 37%

If imported as semiconductor valve parts

Dedicated parts provisions for semiconductor equipment.

8421.99.01Lower: 35% vs 37%

If for filtering valves in slurry delivery

Parts of filtering machinery for semiconductor slurries.

Not sure which classification is right?

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Import Tips & Compliance

Specify servo response time <100ms for dynamic slurry control

Include diamond abrasive concentration test data for wear qualification

Use nitrogen-purged shipping to maintain slurry compatibility

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