Grinding or polishing machines
Machine-tools (including presses) for working metal by forging, hammering or die forging (excluding rolling mills); machine-tools (including presses, slitting lines and cut-to-length lines) for working metal by bending, folding, straightening, flattening, shearing, punching, notching or nibbling (excluding drawbenches); presses for working metal or metal carbides, not specified above. > Cold metal working presses: > Other > Grinding or polishing machines
Duty Rate (from China)
Products classified under Tariff item 8464.20.00
Architectural Glass Corner Grinding Machine
A machine that grinds 45-degree mitred corners on large glass panels for frameless shower doors and facades. It uses diamond abrasive wheels to shape the glass edges precisely, ensuring a clean and accurate mitre joint. This machine is classified under tariff item 8464.20.00 as a grinding machine for cold working glass.
Asbestos-Cement Sheet Polisher
A wide-belt polishing machine used to finish asbestos-cement roofing and siding sheets to a uniform thickness. It operates by passing the sheets through abrasive belts that grind and polish the surface, ensuring consistent dimensions and a smooth finish. This machine is classified under tariff item 8464.20.00 as a polishing machine for working mineral materials.
Automotive Windshield Polishing Machine
A specialized polisher designed to remove scratches and restore clarity on laminated automotive safety glass. It uses rotating polishing pads with abrasive compounds to smooth the glass surface without damaging the laminate layer. This machine is classified under tariff item 8464.20.00 as a polishing machine for cold working glass.
Ceramic Tile Grinder
A bridge-style grinder designed for rectifying the edges and surfaces of ceramic tiles to precise dimensions after firing. It uses diamond abrasive wheels to grind the tile edges, ensuring uniform size and squareness. This machine is classified under tariff item 8464.20.00 as a grinding machine for working ceramics.
CNC Glass Edge Grinding Machine
A computer numerically controlled (CNC) machine that grinds and polishes the edges of flat glass sheets to precise specifications for architectural and automotive applications. It uses diamond abrasive wheels to shape the edge and then polishing wheels to achieve a smooth finish. This machine is classified under tariff item 8464.20.00 as a grinding and polishing machine for cold working glass.
CNC Granite Surface Grinder
A computer numerically controlled (CNC) machine designed for precision grinding of flat surfaces on granite slabs used in countertops and monuments. It uses a rotating grinding wheel to remove material and achieve a smooth, flat finish. This machine falls under tariff item 8464.20.00 as a grinding machine for working stone.
Concrete Floor Grinder
A planetary head grinder used for leveling and smoothing freshly poured or existing concrete floors in construction sites. It features multiple rotating grinding heads that work together to remove surface imperfections and create a level finish. This machine is classified under tariff item 8464.20.00 as a grinding machine for working concrete, a mineral material.
Flat Glass Surface Polishing Machine
An industrial polisher that uses abrasive pads to achieve a mirror finish on float glass surfaces for mirrors and display cases. The machine operates by moving the polishing pads across the glass surface in a controlled pattern, removing any imperfections. This machine is classified under tariff item 8464.20.00 as a polishing machine for cold working glass.
Float Glass Continuous Polisher
A mass production polisher that processes a continuous float glass ribbon after the tin bath to remove tin residue and achieve clear, polished glass. The machine uses a series of polishing heads with abrasive pads to smooth the glass surface. This machine is classified under tariff item 8464.20.00 as a polishing machine for cold working glass.
Glass Edge Polisher
A straight-line machine for bevelling and polishing the edges of flat glass sheets used in windows and mirrors. It uses abrasive wheels to grind the glass edge to a desired profile and then polishes it to a smooth finish. This machine is classified under tariff item 8464.20.00 as a polishing machine for cold working glass.
Marble Slab Polishing Machine
An automated polishing line designed to create high-gloss finishes on marble slabs for flooring and wall tiles. The machine uses a series of polishing heads with progressively finer abrasives to achieve a mirror-like surface. This machine is classified under tariff item 8464.20.00 as a polishing machine for working stone.
Porcelain Edge Grinding Machine
A CNC-controlled grinder for chamfering and smoothing the edges of porcelain slabs used in high-end bathroom vanities. It uses diamond grinding wheels to shape the porcelain edge precisely and then polishes it to a smooth finish. This machine is classified under tariff item 8464.20.00 as a grinding machine for working ceramics.
Quartz Wafer Lapping Machine
A double-sided lapping machine used to achieve precise flatness tolerances on quartz crystal wafers used in electronic oscillators. It grinds both sides of the wafer simultaneously using abrasive slurry to produce a highly flat and parallel surface. This machine is classified under tariff item 8464.20.00 as a grinding machine for working stone.