Top Drive Rotary System for Gas Wells from Canada
A top drive rotary system replaces the kelly-rotary table setup, directly rotating the drill string from the derrick top in gas well drilling. Classified in HTS 8430.49.8010 as advanced rotary boring machinery for oil and gas fields.
Duty Rate — Canada → United States
10%
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
Import Tips
• Provide OEM manuals detailing rotary motor and gearbox for customs tech review
• Certify as complete functional unit to avoid parts breakdown under 8431