Precision CNC Machining Partner
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:
Material Performance Requirements
- Stable, hermetic glass-to-metal and ceramic-to-metal seals via controlled thermal expansion
- Dimensional stability across temperature cycles
- Reliable brazing and soldering interfaces for feedthroughs, lids, and frames
- Tight, burr-free sealing lands and controlled edge conditions for leak integrity
Our Process Focus
KELTRYN’s processes are tuned to the challenges of Kovar: heat input, work hardening, burr formation, thin-wall deformation, and critical sealing features. Our workflows prioritize thermal management, toolpath strategy, and feature sequencing to minimize distortion, manage work hardening, and deliver consistent, high-fidelity geometry.
Components We Machine
We manufacture custom Kovar components for vacuum systems, sensors, and scientific instrumentation, including:
Hermetic Enclosures
Hermetic housings and enclosures for vacuum and sensor assemblies.
Sealing Components
Lids, caps, cover plates, sealing rings, cap rings, and braze frames.
Flanges & Frames
Flanges and mounting frames for brazed or welded assemblies.
Sensor Packages
Sensor and transducer packages for pressure, temperature, and RF/microwave.
Optical Components
Optical and photonic sub-frames, retainers, and alignment features.
Feedthrough Parts
Collars, spacers, and precision inserts for feedthroughs and headers.
Compact Assemblies
Thin-wall and small-feature parts for compact assemblies.
Seal Integration
Kovar features and sealing lands machined to your drawings for glass-to-metal or ceramic-to-metal seals.
Process Capabilities
- CNC turning and CNC milling
- Multi-axis machining for complex geometries
- Prototype development and low-volume production
- Controlled deburring and edge conditioning for hermetic sealing surfaces
- Finishing coordination (e.g., plating) per customer specification
- Inspection support with dimensional documentation
Hermetic Sealing & Finishing Considerations
We collaborate with engineering teams to prepare Kovar components for downstream joining and sealing:
- Sealing lands: flatness, parallelism, and surface finish targeted for leak-tight interfaces
- Edge control: careful deburring and edge breaks that preserve sealing widths and braze fillets
- Geometry for joining: fillet radii, reliefs, and access for brazing or welding
- Plating and surface treatments: coordination with specified Ni/Au or other finishes for oxidation control and braze/solder compatibility
- Distortion control: machining strategies for thin sections, frames, and rings to maintain dimensional integrity during assembly
If required, we can align dimensional inspection to your leak-test criteria and coordinate with your internal testing or approved partners.
Quality, Documentation & Traceability
Full traceability and documentation across every project phase, from prototype through production.
Material Certification
Material certification and lot traceability for Kovar/ASTM F15 and Fe-Ni-Co alloys.
Inspection Reports
Inspection reports (as-specified) to support incoming QC and qualification.
Revision Control
Clear revision control and configuration management from prototype through repeat orders.
Process Records
Consistent machining records and process notes for hermetic-critical features.
Design-for-Manufacturability Support
Get practical manufacturability feedback before machining:
- 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
We commonly support mechanical, manufacturing, process, and packaging engineers developing components for vacuum systems, sensors, and scientific instruments.
Typical Applications We Support
- Vacuum systems and subsystems (HV/UHV assemblies when paired with appropriate joining and finishing per your specification)
- Scientific and analytical instruments (e.g., spectroscopy, mass analysis, microscopy)
- Sensors and transducers for pressure, temperature, RF/microwave, and photonics
- Optoelectronic packages, laser and photonics modules, and optical benches
- Glass-to-metal and ceramic-to-metal sealed enclosures and feedthrough interfaces
- Aerospace, defense, and medical instrumentation requiring hermetic reliability
How We Work
A clear, structured process from initial discussion to repeat production.
Application Understanding
Discuss operating environment, sealing approach, and critical features.
DFM Review
We review drawings/CAD for manufacturability and risk areas; suggest improvements where appropriate.
Quotation
Clear pricing, lead time, and documentation scope.
Prototype Builds
Early units for fit, assembly, and sealing validation.
Repeat Production
Stable, repeatable machining for ongoing batches with traceability and inspection documentation.
RFQ Checklist
To help us quote quickly and accurately, please include:
- 2D drawing (PDF) and 3D model (STEP/IGES), or a physical sample
- Material specification (e.g., Kovar / ASTM F15 / Fe-Ni-Co alloy)
- Quantity and delivery expectations (prototype and/or production)
- Tolerances and surface finish requirements (call out sealing lands where applicable)
- Plating/finishing requirements and any special handling notes
- Inspection and documentation needs (e.g., dimensional report, material certs)
- Notes on brazing/soldering/welding, leak rate targets, and test methods if relevant
FAQs
Do you support low-volume and prototype machining?
Yes. We regularly produce prototype and low-volume runs for development and qualification prior to production.
Can you machine thin-wall Kovar parts?
Yes, with appropriate geometry and process planning. We provide DFM input to minimize deformation and protect sealing features.
Do you provide plating or leak testing?
We coordinate specified finishing (e.g., Ni/Au) through approved vendors and align dimensional inspection to your leak-testing plan. If leak testing is required, we can coordinate with your lab or accredited partners as defined in your process.
Can you hold tight tolerances on sealing features?
We focus on the flatness, parallelism, and surface finish needed for hermetic-quality seals. Share your tolerance scheme and sealing strategy so we can align process controls and inspection.
Start Your Project
KELTRYN helps engineering and sourcing teams in vacuum systems, sensors, and scientific instruments turn Kovar and Fe-Ni-Co alloy designs into precision, production-ready components. Share your drawings and requirements to receive DFM feedback and a clear path from prototype to repeat production.
Contact: info@keltryn.com
Subject: “Kovar — Vacuum/Sensors/Scientific RFQ”
Contact KELTRYN
Precision engineering for high-performance Kovar components and advanced electronic packaging. Get in touch with our technical team today.
Phone
+8619987732962Location
Dahe Industrial Zone Longhua District, Shenzhen, Guangdong Province, China