Tunnel Boring Machine Head from Japan
The cutting head assembly of a tunnel boring machine drills through earth and rock formations for underground construction. It qualifies under HTS 8430.49.8050 as other boring machinery for earth when not a complete TBM system.
Duty Rate — Japan → 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
• Submit engineering drawings showing cutter configuration for earth/rock boring verification
• Include weight and diameter specs for proper duty calculation
• Avoid misclassification by confirming assembly requires mounting on carrier machine