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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parts/accessories of lamp assembly machines
Machine components classify under parts heading, not complete machines.
If other semiconductor processing ovens
Thermal processing without mechanical assembly shifts classification.
If glass envelope production only
Quartz glass envelopes classify as glassware if not assembly machines.
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Import Tips & Compliance
• Atmosphere control specs (vacuum/argon) must be documented for tube classification
• Include glass-to-metal seal technology descriptions
• Avoid declaring as general glass working without electronic component assembly
Related Products under HTS 8475.10.00.00
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.
Czochralski Crystal Puller
A machine that uses the Czochralski method to grow monocrystalline silicon boules from molten semiconductor material, which are later sliced into wafers for electronic device fabrication. Classified under HTS 8475.10.00.00 as it assembles components into glass envelopes during the initial crystal growth phase for lamps or tubes. Essential for producing high-purity silicon used in electric lamps and semiconductor processing.