Electrode Press Assembly for Vacuum Tubes
Hydraulic press for sealing electrodes into glass envelopes of vacuum tubes during assembly. Falls under HTS 8475.90.10.00 as a core part of tube manufacturing machines. Applies controlled pressure for hermetic seals.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If presses for semiconductor device fabrication
Processing equipment for semiconductors per chapter notes.
If general hydraulic presses for metal
Bending/forging presses in metalworking chapter.
If with integrated measuring for seal quality
Measuring appliances for pressure testing.
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
• Calibrate pressure specs in declarations; check for dual-use export controls; use prior notice for high-value machinery parts
Related Products under HTS 8475.90.10.00
Stem Press Mold for Electronic Tubes
Interchangeable mold for forming glass stems with lead wires in tube assembly presses. Classified under HTS 8475.90.10.00 for glass envelope tube machines. Allows quick changeovers for different tube types.
Flashbulb Gas Filling Injector
Injector for precise filling of flashbulb glass envelopes with high-pressure gases before sealing. Part of assembly machines in HTS 8475.90.10.00. Controls fill volume for consistent flash performance.
Mesa Alignment Stage for Lamp Assembly
Precision XY stage for aligning components inside glass envelope lamps during automated assembly. Under HTS 8475.90.10.00 for dedicated lamp machines. Micron-level accuracy for optical centering.
Quartz Pinch Seal Former
Heating and forming tool for creating pinch seals on quartz glass envelopes in high-intensity lamps. Specific part for assembly machines under HTS 8475.90.10.00. Handles high-melt temperatures for durable seals.
Anode Support Fixture for CRT Tubes
Fixture for holding and positioning anodes inside glass envelopes during cathode ray tube assembly. Under HTS 8475.90.10.00 for tube assembly machine parts. Maintains critical spacing for electron flow.
Exhaust Manifold for Lamp Evacuation Systems
Multi-port manifold distributing vacuum to multiple glass envelopes in batch lamp assembly. Part of evacuation machines under HTS 8475.90.10.00. Optimizes throughput in high-volume production.