Numerically controlled
Machine tools for deburring, sharpening, grinding, honing, lapping, polishing or otherwise finishing metal or cermets by means of grinding stones, abrasives or polishing products, other than gear cutting, gear grinding or gear finishing machines of heading 8461: > Honing or lapping machines: > Numerically controlled
Duty Rate (from China)
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
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8460.40.40
Haas CNC Lapping Machine TL-1
The Haas CNC Lapping Machine TL-1 is a numerically controlled precision lapping system designed for finishing flat surfaces on metal parts and cermets using abrasive slurries. It falls under HTS 8460.40.40 as a numerically controlled lapping machine for metal or cermets, distinct from gear finishing machines in heading 8461. This equipment ensures ultra-flat surfaces critical for semiconductor wafers and precision components.
Okamoto ACC-1224DXL CNC Lapping System
Okamoto's ACC-1224DXL is a numerically controlled double-sided lapping machine for achieving mirror finishes on metal and cermet workpieces. Classified under HTS 8460.40.40 for its NC control and lapping function on metal/cermets using polishing products. Essential for semiconductor wafer processing requiring atomic-level flatness.
Peter Wolters AC 2000 CNC Double-Disc Lapping Machine
The Peter Wolters AC 2000 features numerical control for simultaneous double-sided lapping of metal and cermet components to nanometer tolerances. HTS 8460.40.40 applies to this NC lapping machine using abrasives for finishing metal surfaces. Widely used in preparing bearing surfaces and semiconductor substrates.
Lambatape LSF 6000 CNC Lapping Center
Lambatape LSF 6000 is a numerically controlled lapping center for high-volume production finishing of automotive and aerospace metal parts using diamond abrasives. Falls under HTS 8460.40.40 as NC lapping equipment for metal/cermets, excluding gear finishing. Provides consistent flatness for sealing surfaces.
Stahli USA DLM 734 CNC Lapping Machine
Stahli DLM 734 CNC lapping machine uses numerical control for precision finishing of small metal and cermet components like valve seats and fuel injector parts. HTS 8460.40.40 classification for NC lapping machines using polishing products on metal surfaces. Achieves tolerances under 1 micron flatness.