Pneumatic Rotary Grinding Spindle from China
An air-driven rotary spindle used in precision grinding machines for semiconductor wafer processing, providing unlimited continuous rotation via pneumatic turbine. Classified under HTS 8412.39.0040 for its pneumatic unlimited rotary acting motor design.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Certify equipment for cleanroom compatibility and provide wafer processing end-use documentation
• Label with precise RPM ratings and air pressure specs to confirm classification as unlimited rotary motor
• Watch for reclassification to Chapter 84 machinery headings if sold as part of a complete grinder assembly