Tunnel Boring Machine Disc Cutter from Germany
Large diameter disc cutter ring with tungsten carbide edges for tunnel boring machines (TBMs) under heading 8430. Used to gouge and crush rock faces in underground tunneling projects. Classified in 8431.49.90.34 for parts of tunneling machinery.
Duty Rate — Germany → 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 detailed CAD drawings showing sole use with TBM cutterheads; declare exact diameter and rock hardness ratings; check for quotas on carbide content