Czochralski Crystal Puller Vacuum Pump from Japan
This vacuum pump is a critical part of Czochralski crystal growers used to produce monocrystalline silicon boules for semiconductor wafers. It maintains the ultra-high vacuum environment necessary during the crystal pulling process to ensure purity and quality. Classified under HTS 8414.90.91 as a part of vacuum pumps specialized for semiconductor manufacturing equipment.
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 detailed technical specifications and end-use statements proving semiconductor manufacturing application to qualify for duty-free treatment under Note 3
• Ensure HS classification documentation references statistical note (a)(i) for crystal growers to avoid misclassification as general vacuum pumps