Precision Ultrasonic Lapping Machine for Metals UML-300 from Japan
The UML-300 employs ultrasonic-assisted lapping to achieve mirror finishes on metal surfaces such as hardened steel dies and molds, removing microscopic material layers through abrasive slurry vibration. Classified under HTS 8456.20.10 for its ultrasonic process tailored to metalworking, it supports high-precision applications in tool and die making. This avoids overlap with mechanical lappers in other headings.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include vibration amplitude and frequency certifications in import docs to prove ultrasonic operation; watch for pitfalls like classifying as standard lapping under 8460 if vibration not emphasized
• Partner with certified freight forwarders experienced in high-tech machinery