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
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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