Float Zone Crystal Grower
Equipment employing the float zone method to produce extremely pure monocrystalline semiconductor boules in a controlled glass envelope environment for electronic tubes and lamps. Falls under HTS 8475.10.00.00 due to its role in assembling semiconductor material within glass envelopes during the growth process for lamp/tube production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when configured for automatic input/output in semiconductor fabs without glass envelope focus
Centrifugal machines for semiconductor processing classify separately if not lamp-specific.
If dedicated to non-glass envelope semiconductor boule production
Statistical notes place pure wafer manufacturing crystal growers in dedicated semiconductor provisions.
If primarily industrial furnaces for crystal annealing
Furnace-type equipment shifts to Chapter 84 heating machinery without assembly function.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include process flow diagrams showing glass envelope containment to justify lamp assembly classification
• Label as 'semiconductor material processing for glass-enclosed devices' to distinguish from general Chapter 90 testing equipment
Related Products under HTS 8475.10.00.00
Electronic Tube Sealing Machine
Precision equipment that fuses glass envelopes around vacuum tube electrodes and semiconductor elements under controlled atmospheres. HTS 8475.10.00.00 specifically covers such assembly machines for electronic tubes in glass envelopes.
Lamp Lead Wire Sealing Machine
Machine that seals lead wires through glass envelopes while maintaining vacuum integrity for electric lamps and tubes. Critical assembly step covered by HTS 8475.10.00.00 for glass envelope lamp assembly.
Getter Flash Assembly Unit
Equipment that installs and activates getter materials inside glass envelopes to maintain vacuum in electronic tubes and lamps. Part of the complete assembly process under HTS 8475.10.00.00.
Base Attachment Machine for Lamps
Automated machine that cements or crimps lamp bases onto sealed glass envelopes containing electronic filaments. Final assembly step for complete lamps under HTS 8475.10.00.00.
Tube Cathode Assembly Station
Workstation that assembles cathodes and grids inside glass envelopes before final sealing for electronic tubes. HTS 8475.10.00.00 covers all stages of tube assembly in glass envelopes.
LED Lamp Glass Envelope Sealer
Modern machine that hermetically seals LED chips within glass envelopes for high-reliability lamps and indicator lights. Still classified under HTS 8475.10.00.00 for assembly of electric lamps in glass envelopes.