High-Speed Ball Screw for PCB Drilling Machines from China
High-DN ball screw (DN>220,000) for Z-axis of PCB drill/spindle units achieving 200,000 RPM positioning. Critical for microvia formation in semiconductor packaging, HTS 8483.40.80.00.
Duty Rate — China → United States
38.8%
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 DN value and max acceleration (>5G) per JIS B1192 standards
• Provide spindle compatibility specs (e.g
• 60-position tool changer)
• Document low-vibration nut design for high-frequency positioning