Cast Iron Spindle Housing for Crystal Puller from China
Semi-finished cast iron housing for spindles in crystal pullers (Czochralski method) under heading 8465, with gates and risers removed and light machining for fixture placement. Used in growing monocrystalline silicon boules for semiconductor wafers. HTS 8466.92.10.00 applies due to minimal processing state.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide CAD drawings showing intended 8465 machine use to support principal use classification
• Avoid any pre-finishing grinding; excess work risks moving to higher-duty finished parts headings
• Certify non-magnetic cast iron grade suitable for precision rotation in cleanroom environments