Silica Soot Sintering Kiln for Fiber Preforms from Germany
Specialized sintering kiln consolidates porous silica soot preforms into dense glass rods suitable for optical fiber drawing, with precise temperature ramping to minimize defects. Critical post-deposition step. Classified HTS 8475.21.00.00 for optical fiber preform processing.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Prove integration in fiber process chain with upstream deposition compatibility
• Thermal profile documentation prevents classification as general kiln
• Inert gas system specs for dehydration process