Tunnel Boring Machine Cutterhead
Rotary cutting head assembly for tunnel boring machines designed to excavate hard rock in mining tunnels. Classified in HTS 8430.39.00 as other tunneling machinery for minerals and ores.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as replacement part, not assembled unit
Separate parts for tunneling machines have distinct provisions.
If classified solely as rock drill bits
Interchangeable tools shift to Chapter 82 tooling.
If for industrial machinery not specific to earth boring
Broad construction machines exclude mineral extraction focus.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify as complete machinery if functional; parts go under 8430.50
• Include engineering drawings showing rock/mineral application
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