8483.40.50/Crystal Puller Speed Reducer/Japan

Crystal Puller Speed Reducer from Japan

Precision manual speed changer for Czochralski crystal growth furnaces used in semiconductor boule pulling. HTS 8483.40.50 applies to manually controlled rotation speed selection. Critical for maintaining uniform crystal diameter growth.

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%

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Import Tips

• Document rotation uniformity specs (<0.1 RPM variation) for semiconductor application

• Include cleanroom compatibility certifications (ISO 3) in import paperwork