Hard Rock TBM Center Row Cutter
V-shaped twin-disc cutter for center row of hard rock tunnel boring machine cutterheads under heading 8430. Balances cutting loads in abrasive formations. Part of 8431.49.90.34 tunneling machinery.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specific TBM boring parts
Some cutterhead components have dedicated subheadings within 8431.43.
If band/chain saw discs
Circular cutters for sawing classify as Chapter 82 saw blades.
If crankshaft bearings
If dominated by transmission function, may classify as transmission parts.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include UCS (uniaxial compressive strength) ratings; specify center row positioning; certify for nuclear/metro projects if applicable
Related Products under HTS 8431.49.90.34
Micro-TBM Cutter Insert
Miniature carbide insert for small-diameter micro tunnel boring machines used in utility tunneling under heading 8430. Designed for soft ground and rock up to 48" diameter. Part of 8431.49.90.34.
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Specialized link in cutter chain system for Rippershark-style rock cutting attachments on tunneling equipment of heading 8430. Includes pick retention features. Classified under 8431.49.90.34.
Longwall Miner Roof Support Pick
Heavy pick for temporary roof support roadheaders in longwall coal mining systems of heading 8430. Clears strata above shearer path. Classified in 8431.49.90.34 as coal/rock cutter part.
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Replaceable hardened steel edge for coal ploughs used in longwall mining systems under heading 8430. Profiles coal face while conveyor advances. Covered by 8431.49.90.34 as coal cutter part.
Tunneling Machine Cutter Bearing
Sealed heavy-duty roller bearing for mounting disc cutters on tunnel boring machine cutterheads under heading 8430. Rated for extreme shock loads and contamination. Part of 8431.49.90.34 tunneling parts.
Tungsten Carbide Tunneling Cutter Pick
A replaceable tungsten carbide tipped cutting pick designed specifically for rock cutters and tunnel boring machines in heading 8430. It features a forged steel shank with a brazed carbide insert for breaking hard rock formations during tunneling operations. Classified under 8431.49.90.34 as a part of coal or rock cutters and tunneling machinery.