Mineral Spiral Concentrator from Japan
A spiral concentrator separates heavy minerals like gold or iron ore from lighter gangue using gravity and helical chutes with water flow. Under HTS 8474.10.00 for separating solid mineral substances in mining applications.
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 gravity separation efficiency test reports specific to minerals to justify classification
• Label as 'mineral processing' to distinguish from food-grade spirals
• Check for precious metal recovery features that may trigger additional customs scrutiny