Wafer Grinder Vibration Isolation Mounts from Germany
Active pneumatic isolation mounts that reduce vibration transmission to <1 nm RMS for ultra-precision wafer grinding. Critical for maintaining wafer bow specs. Parts of wafer grinder apparatus under 8442.40.00.00.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify natural frequency (<1 Hz) and payload capacity (100-500 kg)
• Active vs passive mounts have different valuations; document control systems
• Install location (base frame vs workhead) affects complete machine classification