Constant Ratio Gearbox for Paper Machine Calendars from China
A robust fixed ratio gearbox engineered for calendar stack drives in paperboard manufacturing lines, providing steady speed reduction for precise roll pressure control. Its non-adjustable gear train ensures consistent performance under high-load conditions typical in paper finishing. Falls under HTS 8483.40.30.40 as it's imported for paperboard production machinery.
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
• Submit manufacturer's declaration linking the gearbox to specific paper calendar models for pulp/paperboard use
• Document gear ratio permanence (non-variable) to distinguish from manual multi-ratio changers
• Check for INA rulings on similar paper machine components to support your classification