Stone Crystal boule Grinder
Precision grinder for semiconductor crystal boules like quartz or sapphire to exact diameters before wafer slicing. While similar to statistical note equipment, stone/mineral versions classify under HTS 8464.20.01 for stone grinding.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for silicon semiconductor wafers
Semiconductor manufacturing grinders explicitly covered by 8486 thermal processing provisions.
If metrology gauge block grinding
Ultra-precision grinders for measuring standards classify under profile projectors.
If adapted for sharpening carbide tools
Tool sharpening grinders, even for hard materials, fall under metalworking if primary use.
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Import Tips & Compliance
• Distinguish from 8486 semiconductor equipment by specifying non-silicon crystal materials
• Require NIST-traceable calibration certificates for precision claims
Related Products under HTS 8464.20.01
CNC Granite Surface Grinder
A computer numerically controlled machine designed for precision grinding flat surfaces on granite slabs used in countertops and monuments. It falls under HTS 8464.20.01 as a grinding machine specifically for working stone materials like granite to achieve smooth, level finishes.
Marble Slab Polishing Machine
Automated polishing line for creating high-gloss finishes on marble slabs for flooring and wall tiles. Classified under HTS 8464.20.01 for polishing machines dedicated to stone like marble, a mineral material.
Concrete Floor Grinder
Planetary head grinder for leveling and smoothing freshly poured or existing concrete floors in construction sites. HTS 8464.20.01 applies to grinding machines for concrete, a 'like mineral material' per chapter notes.
Ceramic Tile Grinder
Bridge-style grinder for rectifying edges and surfaces of ceramic tiles to precise dimensions post-firing. HTS 8464.20.01 covers grinding machines for ceramics, explicitly listed mineral materials.
Quartz Wafer Lapping Machine
Double-sided lapping machine for achieving flatness tolerances on quartz crystal wafers used in oscillators. As quartz is stone, grinding/lapping falls under HTS 8464.20.01 for stone working.
Porcelain Edge Grinding Machine
CNC-controlled grinder for chamfering and smoothing porcelain slab edges for high-end bathroom vanities. Ceramics classification under HTS 8464.20.01 for mineral material grinding.