Glass Envelope Filament Welding Arm
A robotic welding arm component for precisely attaching filaments inside glass envelopes during electric lamp assembly. Classified under HTS 8475.90.10.00 because it is a dedicated part of machines for assembling lamps or tubes in glass envelopes. It ensures accurate positioning and welding under controlled atmospheres.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as a welding machine part standalone
Electric welding apparatus parts are in 8515, separate from assembly-specific machinery.
If for hot glass working in semiconductor boule processing
Parts for semiconductor crystal growers or pullers fall under unlisted semiconductor machines.
If when used in general metalworking robotic arms
Robotic tool holders for metal parts go to Chapter 84 metalworking machinery.
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
• Provide engineering drawings showing integration with lamp assemblers; declare material composition (e.g
• tungsten tips) accurately; ensure compliance with electrical safety standards like UL for US entry
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.