Chopper Wheel Motor Assembly from Germany
Precision DC motor with infrared chopper wheel for lock-in amplification in monochromator-based spectrometers (9027.30.40). Modulates light source for signal detection. Electrical modulation component under 9027.90.56.30.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Specify chopper frequency, blade count, and compatible detection systems
• Document electrical specifications (RPM, voltage) and thermal management features
• Include vibration isolation specifications proving analytical instrument quality