Wafer Thickness Control Pneumatic Actuator from Germany
Precision linear pneumatic actuator maintaining constant wafer thickness during simultaneous double-side grinding operations. Classified HTS 8412.90.9025 as part of linear acting pneumatic motors in semiconductor wafer grinders. Achieves ±0.5 micron thickness uniformity across 300mm wafers.
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 thickness uniformity specs and feedback loop integration; include vibration isolation design certification
• Common misclassification under general grinding machine parts