Crystal Boule Grinder Spindle from Japan
High-precision spindle assembly for crystal grinders that shape semiconductor boules to exact wafer diameters and grind orientation flats. Critical for diameter control and flat marking per conductivity specs. Part of 8479.89.10 crystal grinders under 8479.90.41.00.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Specify boule diameter range (150-450mm) and flat grinding specifications,Include SEMI standards compliance certification (M1, M12, etc.),Don't classify as general grinder spindle under 8466.93