Float Zone Crystal Grower Crucible Assembly from Japan
A specialized crucible part for float zone crystal growers used to melt and purify semiconductor materials like silicon into monocrystalline form. Classified under HTS 8454.90.00.60 as a component of semiconductor casting machines in metallurgical processes. It maintains vacuum and high-temperature stability during zone refining.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide manufacturer certifications for vacuum sealing and thermal shock resistance to support classification
• Label with exact compatibility (e.g
• for 200mm wafers) to prevent misclassification as generic labware