Plasma CVD Preform Deposition Tower
Plasma-enhanced CVD tower uses microwave plasma to deposit high-purity silica inside rotating tubes for advanced optical fiber preforms with fluorine doping capability. Produces fibers for long-haul telecom. Under HTS 8475.21.00.00 as specialized optical fiber manufacturing machine.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If microwave heating equipment only
Industrial microwave ovens without deposition classified in 8515.
If general plasma processing for glass
Non-fiber specific plasma machines under other hot glassworking.
If plasma spectroscopic analyzers
Testing equipment with plasma sources in Chapter 90.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include microwave frequency specs and plasma containment documentation
• Distinguish from semiconductor plasma etchers (Chapter 90 testing)
• RF shielding compliance for electromagnetic compatibility
Related Products under HTS 8475.21.00.00
Preform Etching Station
Automated hydrofluoric acid etching station removes surface defects from optical fiber preforms, improving fiber strength. Precise chemical dosing and rinsing. HTS 8475.21.00.00 for preform processing machinery.
Optical Preform Grinder
Precision grinder shapes ends of optical fiber preforms to exact geometry for fiber drawing process, with diamond tooling for silica glass. Maintains flatness critical for draw quality. Classified HTS 8475.21.00.00.
Integrated Preform Manufacturing Line
Complete turnkey line combining VAD deposition, sintering, dehydration, and collapsing for high-volume optical fiber preform production. PLC controlled with recipe management. HTS 8475.21.00.00 for complete optical fiber making systems.
Fluorine-Doped Preform Plasma Processor
Plasma processor dopes optical fiber preforms with fluorine using downstream microwave plasma for depressed cladding index profiles in dispersion-shifted fibers. Critical for DWDM systems. Under HTS 8475.21.00.00.
Fiber Preform Dehydration Oven
Oven removes hydroxyl impurities from soot preforms using chlorine gas at elevated temperatures, essential for low-loss optical fibers. Controlled humidity environment. Specialized under HTS 8475.21.00.00.
Czochralski Crystal Puller for Optical Fiber Preforms
This machine uses the Czochralski method to grow high-purity silica monocrystalline boules from which optical fiber preforms are sliced. It melts silica in a crucible and slowly pulls a seed crystal to form the boule under precise temperature control. Classified under HTS 8475.21.00.00 as it is specifically designed for producing preforms used in optical fiber manufacturing.