Steel Cast Axle Housing for Tunnel Boring Machine from Mexico
This heavy-duty cast steel axle housing is used in the undercarriage of tunnel boring machines (TBMs) for subway and infrastructure projects. It encases axles for the rotating cutter head drive system, enduring extreme pressures. HTS 8431.49.90.25 applies as a cast part principally for tunneling machinery of heading 8430.
Duty Rate — Mexico → 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 CAD drawings and OEM part numbers linking to specific TBM models for binding ruling requests
• Ensure heat treatment certifications for cast steel to meet safety standards in mining applications
• Monitor EU carbon border adjustment for steel-intensive imports