The Alpha Technology Custom Vacuum Feedthrough program builds feedthroughs to your exact drawing — flange pattern, pin layout, conductor material, voltage and current. The 12 kV E-Beam Baseplate Feedthrough shown here is a typical example: a baseplate-mounted, high-current feedthrough designed for electron-beam welding and processing machines, where standard round flanges do not fit the chamber design.
Custom Vacuum Feedthrough — Key Specifications
| Voltage Rating | 12 kV DC |
|---|---|
| Max Current | 50 – 145 A |
| Vacuum Leak Rate | UHV < 1×10⁻¹⁰ mbar·l/s |
| Conductor Material | Copper / Nickel / Molybdenum |
| Mounting | Baseplate type |
| Temperature Range | -150 °C to 350 °C |
Why It Meets UHV Requirements
- Baseplate mounting for integration directly into chamber walls or weldment plates
- High current capacity (50–145 A) with copper or molybdenum conductors
- Ceramic-to-metal hermetic seal, helium leak tested to < 1×10⁻¹⁰ mbar·l/s
- Custom flange patterns, hole circles and conductor geometries to your drawing
- Short lead times for prototype and production quantities
Typical Applications
- Electron-beam welding and processing machines
- Custom vacuum chambers and weldments
- High-current power delivery into vacuum
- Retrofit and replacement feedthroughs for existing equipment
Custom & OEM Options
Every Alpha Technology feedthrough is manufactured to order. Voltage, current, pin layout, conductor material, flange and mounting geometry can all be customized. Contact us with your drawing or specification and our engineers will provide a free design review.
FAQ
What information do you need for a custom feedthrough quote?
A drawing or sketch of the flange/mounting pattern, voltage and current ratings, number of pins, conductor material, vacuum requirement and temperature range. Our engineers will review it and confirm the design — free of charge.
Can you match an existing feedthrough I need to replace?
Yes, we routinely reverse-engineer and replace feedthroughs from other manufacturers. Send us the part, drawing or photographs with dimensions.
What is the price?
Custom feedthroughs are quoted per design. Provide your specifications and quantity to receive a custom price, typically within 1–2 working days.
Related Products
See our full range of vacuum feedthroughs, explore edge welded bellows for motion transmission into vacuum, or read the bellows design & selection guide.
Ready to specify your feedthrough? Request a quote — our engineers respond within one business day.
