Crystal Grinder Diameter Control Cylinder from Japan
Linear pneumatic cylinder used in crystal grinders to precisely control the grinding wheel position while shaping semiconductor boules to exact wafer diameters. Classified HTS 8412.90.9025 as part of linear acting pneumatic motors for semiconductor crystal preparation equipment. Includes flats grinding function indicating conductivity type.
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
• Provide CAD drawings showing integration with crystal orientation flats grinding; include cleanroom compatibility certification
• Ensure documentation distinguishes from general metalworking cylinders