CNC Machine Variable Speed Reducer Gearbox from China
A precision gearbox used in CNC machining centers for variable speed control with multiple ratios selected manually via handwheel or lever. Classified under HTS 8483.40.5080 as a fixed/variable ratio speed changer for industrial machinery. It transmits power while allowing manual ratio adjustments without electronic controls.
Duty Rate — China → United States
40%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify gearbox ratios are manually selectable to avoid 8483.40.30 classification; provide engineering specs showing mechanical ratio selection
• Ensure origin certification for machinery parts duty preferences
• Common pitfall: misclassifying electronically controlled units as servomotors under 8501