Wafer Lapping Machine Pressure Valve from Germany
Hydraulic pressure regulating valve for maintaining consistent force in double-side wafer lappers achieving dimensional tolerances. Classified in HTS 8481.80.9050 for semiconductor wafer preparation appliances. Ensures parallelism within microns.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document target thickness tolerances (e.g
• ±0.5μm) linking to lapping
• Include hydraulic fluid specs for semiconductor cleanroom approval
• Avoid general 'hydraulic valve' description to prevent 8412 classification