PVB Film Calendering Cylinder
Cylinder used in calendering machines for polyvinyl butyral (PVB) interlayer films in laminated safety glass production. HTS 8420.91.90.00 covers such parts for polymer film rolling, explicitly excluding glass processing machines.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as unfinished polymer sheet rather than machined cylinder
Plain polymer plates or sheets without machine-part features go to Chapter 39 plastics.
If parts of machinery for working plastics in primary forms
Primary polymer processing equipment parts classify under 8477, not general rolling machines.
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Import Tips & Compliance
• Include PVB material safety data sheets to confirm polymer processing end-use
• Declare cylinder orientation (e.g
• heated 3-roll stack) to match statistical note requirements
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