Kovar CNC Machining for Vacuum Systems, Sensors & Scientific Instruments
KELTRYN is a precision CNC machining partner focused on Kovar and Fe-Ni-Co alloys for hermetic, high-reliability, and demanding engineering applications. We manufacture custom Kovar components—housings, lids, caps, sealing rings, frames, flanges, and complex precision parts—used throughout vacuum systems, sensors, and scientific instruments.
From early-stage prototypes to repeat production, we help engineering teams turn Kovar/ASTM F15 designs into production-ready components through practical DFM feedback, controlled machining processes, deburring and finishing, inspection support, clear communication, and full material traceability.
Built for Vacuum, Sensor, and Scientific Applications
Vacuum equipment and scientific instruments often rely on Kovar (ASTM F15) and related Fe-Ni-Co alloys to enable critical performance characteristics. Our machining processes are tuned specifically to the challenges of Kovar: heat input, work hardening, burr formation, thin-wall deformation, and critical sealing features.
Hermetic Seals
Stable, hermetic glass-to-metal and ceramic-to-metal seals via controlled thermal expansion matching.
Dimensional Stability
Proven dimensional stability across wide temperature cycles and stringent operating environments.
Joining Interfaces
Reliable brazing and soldering interfaces for feedthroughs, lids, and structural frames.
Leak Integrity
Tight, burr-free sealing lands and controlled edge conditions designed for leak path integrity.
Components We Machine
We manufacture custom Kovar components for vacuum systems, sensors, and scientific instrumentation, including:
- — Hermetic housings and enclosures
- — Lids, caps, and cover plates
- — Sealing rings, cap rings, and braze frames
- — Flanges and mounting frames for brazed or welded assemblies
- — Sensor and transducer packages
- — Optical and photonic sub-frames, retainers, and alignment features
- — Collars, spacers, and precision inserts for feedthroughs and headers
- — Thin-wall and small-feature parts for compact assemblies
If your design integrates glass-to-metal or ceramic-to-metal seals, we can machine the corresponding Kovar features and sealing lands to your drawings and specifications.
Process Capabilities
Our workflows prioritize thermal management, toolpath strategy, and feature sequencing to minimize distortion, manage work hardening, and deliver consistent, high-fidelity geometry.
Hermetic Sealing & Finishing Considerations
We collaborate with engineering teams to prepare Kovar components for downstream joining and sealing. Our approach ensures that every feature is optimized for the demanding requirements of hermetic assemblies.
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Sealing Lands: Flatness, parallelism, and surface finish targeted for leak-tight interfaces.
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Edge Control: Careful deburring and edge breaks that preserve sealing widths and braze fillets.
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Geometry for Joining: Fillet radii, reliefs, and access features optimized for brazing or welding.
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Plating & Treatments: Coordination with specified Ni/Au or other finishes for oxidation control and braze/solder compatibility.
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Distortion Control: Machining strategies for thin sections, frames, and rings to maintain dimensional integrity during assembly.
Design-for-Manufacturability Support
Get practical manufacturability feedback before machining. We commonly support mechanical, manufacturing, process, and packaging engineers developing components for vacuum systems, sensors, and scientific instruments.
- → Sealing width and land geometry reviews for machining and deburring feasibility
- → Thin-wall and small-feature risk assessment to reduce deformation and chatter
- → Tool access, fixturing, and datum strategy to stabilize critical dimensions
- → Recommendations for tolerance stacking on assemblies and secondary operations
- → Plating and post-processing allowances on critical features
RFQ Support
Send Your Kovar Machining RFQ
Share drawings, CAD files, material requirements, quantities, tolerances, finishing needs, inspection requirements, and your target timeline. Our team will review the details and respond by email.
Helpful RFQ details
- 2D drawings or 3D CAD files
- Material: Kovar / ASTM F15 / Fe-Ni-Co alloy
- Quantity, tolerance, finish, inspection needs
- Application and purchasing timeline
Direct email: info@kovarmachining.com