OVD Outside Vapor Deposition Preform Machine from Japan
Outside Vapor Deposition (OVD) machine that flames hydrolyzes silicon tetrachloride to deposit soot on a ceramic target, building preforms for optical fibers. Multiple passes create graded index profiles. Specifically classified in HTS 8475.21.00.00 for optical fiber preform production.
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 evidence of flame hydrolysis capability for distinguishing from MCVD systems
• Ensure chemical handling certifications for silicon precursors
• Note energy consumption for flame systems in efficiency declarations