Precision Lapping Machine for Hydraulic Valve Spools
A flat-bed lapping machine using diamond abrasives to achieve micron-level flatness on metal hydraulic valve spools and cermet wear surfaces. Used in heavy machinery manufacturing for leak-proof sealing. Under 8460.90.80.80 for lapping/finishing metal surfaces with abrasives.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If equipped for honing cylindrical bores
Honing machines for internal surfaces have dedicated provisions in 8460.40.
If for semiconductor wafer surface lapping
Wafer lappers/polishers for semiconductor prep are Chapter 90 per notes.
If for finishing engine parts like pistons
Machines for finishing specific automotive/engine parts may classify under 8466.
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Import Tips & Compliance
• Include flatness tolerance specs (e.g
• <1 micron) and abrasive type in invoices to justify machine tool status
• Certify for industrial metalworking use only; avoid lab or semiconductor references in marketing materials
Related Products under HTS 8460.90.80.80
Vibratory Finishing Tumbler for Cermet Parts
An industrial vibratory tumbler that uses polishing media to deburr and finish batches of small cermet and metal components simultaneously. Ideal for high-volume production of precision parts in automotive and medical industries. Falls under 8460.90.80.80 for other finishing machines using abrasives on metal or cermets.
Double-Disc Surface Grinder for Cermet Dies
Automated double-disc grinder that simultaneously finishes both faces of cermet stamping dies using diamond-impregnated wheels. Achieves parallel tolerances for high-precision tooling. Classified under 8460.90.80.80 for other metal/cermet grinding machines.
Magnetic Polishing Machine for Small Metal Stampings
Magnetic pin finishing machine that vibrates abrasive pins against small steel stampings inside a drum for isotropic surface finishing. Used for firearm components and medical implants. Fits 8460.90.80.80 for polishing metal with abrasive products.
Centerless Grinding Machine for Hypodermic Needles
Through-feed centerless grinder that finishes stainless steel hypodermic needle blanks to surgical tolerances using vitrified abrasives. Ensures burr-free cannula surfaces. Under 8460.90.80.80 as other grinding machines for metal.
CNC Belt Grinder for Metal Finishing
A computer numerically controlled belt grinder designed for precision deburring and finishing of metal parts such as aerospace components. It uses abrasive belts to remove burrs and achieve smooth surfaces on hard metals and cermets. Classified under 8460.90.80.80 as a machine tool for grinding and finishing metal using abrasives, not for gears.
Electrochemical Deburring Machine for Titanium Alloys
A specialized machine employing electrolytic processes with abrasives for precise deburring of complex titanium alloy aerospace parts. It removes burrs without mechanical contact, preserving surface integrity on metals. Classified in 8460.90.80.80 as other metal finishing machines using polishing products.