Description
Electron Gun Holder Feedthrough Assembly Vacuum Chamber 37-Inch Stainless
This is an unbranded 37-inch electron gun holder feedthrough assembly designed for use with vacuum chambers. The assembly consists of a long hollow stainless steel shaft mounted to a flanged base with a conical bore opening, and an adjustable mid-body clamp block that uses a coiled-spring mechanism and star-knob hand adjusters to position and secure the electron gun within the vacuum environment. The flange features a bolt-circle pattern for direct mounting to a vacuum chamber wall or port.
Specifications & What's Included
- Type: Electron gun holder feedthrough assembly
- Overall length: approximately 37 inches
- Shaft: hollow cylindrical tube, stainless steel construction
- Flange: circular bolt-pattern flange at one end with conical bore opening
- Adjustment block: machined aluminum/stainless clamp body with coiled spring and star-knob hand-adjustment hardware
- Side port fitting: small threaded fitting visible at the adjustment block area (likely for gas, cooling, or electrical feedthrough)
- Brand: Unbranded (no manufacturer markings identified)
- Sold as pictured — feedthrough assembly only, no additional accessories
Applications
Electron gun feedthrough assemblies are used in high-vacuum and ultra-high-vacuum (UHV) chambers to position an electron beam gun or electron emitter source inside the vacuum environment while routing mechanical positioning, electrical connections, or gas lines through the chamber wall. They are found in physical vapor deposition (PVD) systems — including e-beam evaporation coaters — as well as in surface science instruments, electron beam lithography systems, and research vacuum apparatus. The flanged design allows the assembly to be bolted directly to a standard vacuum chamber port, while the adjustable mid-body clamp permits fine angular or axial positioning of the gun. These components are common in semiconductor thin-film deposition, optical coating, and materials research labs, and finding a compatible replacement feedthrough on the surplus market can be a cost-effective alternative to a long lead-time OEM part.
This unbranded 37-inch electron gun holder feedthrough assembly has been inspected and is in good used condition. It was pulled from a working environment where it was in active use. The stainless steel shaft and aluminum clamp block show normal wear consistent with lab service — minor surface marks and light scuffing — but there is no significant corrosion, deformation, or damage to the flange, threading, or clamp mechanism. The coiled spring and star-knob adjustment hardware are intact and appear complete. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Unbranded |
Model: |
Electron Gun Holder Feedthrough Assembly |
Type: |
Electron Gun Holder Feedthrough Assembly |
SKU: |
27719 |
Condition: |
Used – Pulled from Working Environment |
Overall Length: |
37 inches |
Material: |
Stainless Steel / Aluminum |
Mount Style: |
Flanged |
Application: |
Vacuum Chamber / Electron Beam / PVD System |
Flange Type: |
Circular bolt-pattern flange |
Adjustment Mechanism: |
Threaded clamp with star-knob hand adjustment |
Seller Notes: |
Sold as pictured; one feedthrough assembly, no additional accessories. |
Condition Notes: |
Used 37-inch electron gun holder feedthrough assembly. Inspected and in good condition; pulled from a working vacuum chamber environment. Normal lab wear — minor surface marks. Flange, threading, and clamp mechanism intact. No damage observed. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
