Ceramic-to-metal and glass-to-metal sealing expertise
Decades of experience metallizing, brazing and hermetically sealing ceramics and glass to metal for vacuum-critical applications.
Our OEM Partner
Solid Sealing Technology
Hermetic Feedthroughs & Connectors for Vacuum Environments
Scanwel is the authorised UK distributor for Solid Sealing Technology (SST), a manufacturer of hermetic feedthroughs, hermetic connectors and ceramic-to-metal sealed components for vacuum, high-pressure and extreme-temperature environments.
Profile & Advantages
Specialist Hermetic Feedthroughs and Connectors for Demanding Vacuum Environments
Solid Sealing Technology (SST) is a specialist manufacturer of hermetic feedthroughs, hermetic connectors and ceramic-to-metal sealed components, supporting vacuum, high-pressure and extreme-temperature applications across energy, medical, aerospace and particle-accelerator markets. As Solid Sealing Technology's authorised UK distributor, Scanwel supplies and supports the full range for UK-based research institutions, universities and industry.
SST's ceramic-to-metal and glass-to-metal sealing processes create a genuine hermetic barrier, helium leak tested to rates below 1 x 10^-10 atm.cc/sec He, for reliable performance in vacuum, high-voltage and high-pressure conditions.
Custom feedthrough design
From modified catalogue parts to fully custom designs, SST engineers feedthroughs for temperatures from -269C to 450C and demanding high-voltage applications.
Rigorous hermetic testing
Every feedthrough and connector is helium leak tested, with full lot traceability and material certification available.
Broad application range
Trusted in energy storage, medical equipment, aerospace and particle accelerator projects worldwide.
Products & Resources
Signal & Power Feedthroughs
Hermetic feedthroughs for electrical signal, power and instrumentation applications, from single-pin designs to high-current, multi-pin configurations for demanding vacuum environments.
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Coaxial Feedthroughs
Hermetic coaxial feedthroughs including BNC and SMA connector types, engineered for reliable RF and signal transmission through vacuum system walls.
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Fiber Optic Feedthroughs
Hermetic fiber optic feedthroughs and multi-channel connectors, brazed for high-temperature reliability and tested for optical performance.
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Ceramic & Alumina Isolators
Alumina ceramic spacers and ceramic isolators for electrical insulation in vacuum and high-voltage assemblies.
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Vacuum Viewports & Pinch-Off Tools
Hermetic viewports and pinch-off tools for sealing and inspection in vacuum systems.
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Thermocouple, Specialty Connectors & Plugs
Type K thermocouple connectors and mating spade plugs, alongside specialty circular connectors for instrumentation applications — including replacement contacts and cable assemblies.
View productPDF brochure
Download PDFSST Product Overview
An overview of SST products, manufacturing capabilities and custom engineering support.
Technical PDF
Download PDFGeneral Product Specifications
General leak-rate, voltage, current and bakeout guidance for SST hermetic products.
Instruction PDF
Download PDFPinch-Off Tool Instructions
Operating guidance for the SST hand-operated pinch-off tube crimp tool.
FAQ
Frequently Asked Questions
Common questions about SST hermetic feedthroughs and connectors, and Scanwel's role as UK distributor.
What is a hermetic feedthrough?
A hermetic feedthrough is a component that carries an electrical, signal or fluid connection through a sealed wall - such as a vacuum chamber housing - without breaking the vacuum or pressure seal. SST feedthroughs use ceramic-to-metal or glass-to-metal sealing, helium leak tested to rates as low as 1×10⁻¹⁰ cc/sec.
What's the difference between SST's hermetic feedthroughs and hermetic connectors?
Feedthroughs are typically fixed, panel-mounted seals carrying a connection through a vessel wall, while SST's hermetic connectors - including MIL-C-5015 and MIL-C-26482 circular types - provide a mateable, sealed plug-and-socket connection for rugged, demountable electrical connections.
What are MIL-C-5015 and MIL-C-26482 connectors used for?
MIL-C-5015 and MIL-C-26482 are US military specification circular connector standards. SST manufactures hermetic versions of both families, providing rugged, sealed electrical connections for aerospace, defence and industrial applications where standard connector geometry and reliability are required.
What are ceramic isolators and alumina spacers used for in vacuum systems?
Ceramic isolators and alumina spacers provide electrical insulation between conductive components in vacuum and high-voltage assemblies, preventing unwanted current paths while withstanding vacuum, temperature and voltage stress.
Does SST make hermetic fiber optic feedthroughs?
Yes. SST's hermetic fiber optic feedthroughs and multi-channel connectors are brazed for high-temperature reliability and tested for optical performance, suitable for vacuum systems requiring optical signal transmission.
What is a pinch-off tool used for?
A pinch-off tool is used to seal a metal tube after a vacuum system has been evacuated or filled, creating a permanent hermetic seal without a valve. SST supplies pinch-off tools alongside its hermetic viewports and vacuum accessories.
Contact SalesDiscuss SST products with ScanwelGet expert advice, pricing and technical information on SST hermetic feedthroughs, connectors, ceramic isolators or custom sealing solutions, direct from Solid Sealing Technology's authorised UK distributor.
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