Every Stage
Your Trusted Partner in Ceramic-to-Metal Sealing
Ceramic Seals Limited is a leading UK manufacturer specialising in ceramic-to-metal seals, technical ceramic feedthroughs and advanced vacuum sealing solutions. We’re trusted by clients operating in ultra-high vacuum, high-pressure and extreme-temperature environments.
As an independent company with a reputation for technical excellence, we design and manufacture hermetic ceramic seals, electrical feedthroughs and metallized alumina components. From one-off prototypes to repeat production, our ceramic-to-metal seal assemblies are engineered for reliability, leak-tight performance and long-term stability.
Bespoke Ceramic-to-Metal Seals & Custom Feedthrough Assemblies
Many applications require more than standard catalogue components. We specialise in the design and manufacture of bespoke ceramic-to-metal seals, custom ceramic feedthroughs, and advanced technical sealing assemblies engineered to meet demanding electrical, vacuum, pressure and thermal requirements.
Working directly with your engineering team, we support projects from initial concept and prototype development through to qualification and repeat production. Customisation can include:
- Materials and geometry
- Conductor configuration
- Flange / housing design
- Ceramic grade and metallization
- Braze alloy selection
- Plating / Protective finishes
Whether you require a single prototype or an ongoing production programme, we deliver reliable, hermetic ceramic sealing solutions built around your application.
AS9100 & ISO 9001 Certified Manufacturer of Ceramic-to-Metal Seals and Feedthroughs
We operate under AS9100:D and ISO 9001:2015 accredited quality management systems for the design and manufacture of ceramic-to-metal seals, ceramic feedthroughs and hermetic electrical assemblies, ensuring:
- Full material and process traceability
- Controlled and validated manufacturing processes
- Repeatable production of hermetic ceramic-to-metal seals
- Documented inspection and test procedures
- Continuous improvement and corrective action
These certifications reflect our commitment to delivering high-reliability ceramic-to-metal seal assemblies and ceramic feedthroughs that meet the stringent demands of aerospace, defence, vacuum, semiconductor and other critical industries.
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