UHV Bell Chamber

Available for Quote


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Email: sales@vacgen.com

  • Accept payments online
  • Minimum Order £100
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  • Extensive support

Our chambers can be custom designed, ensuring they are tailored to your individual needs for your specific applications. Our extensive history in chamber manufacturing guarantees we can provide you with the right support and technical services from the moment you request a quotation to the day you recieve your chamber.

Chamber Material Details:

We can offer the Lollipop Hemisphere Chamber in two different materials:

Lollipop Hemisphere Chamber Material
Material TypeDescription
Nicked Based Super Alloy (NiFe)A soft ferromagnetic metal with a very high permeability
Stainless Steel304L or 316L available as standard body and tube material

Chamber Body Details:

The following chambers are formed from standard skeletons;

Lollipop Hemisphere Body Details 
Chamber TypeChamber MaterialFlange ODBottom PortTop PortMaximum Body Length 
Bell ChamberStainless Steel 305 mm    
Bell ChamberNiFe (Mu Metal)305 mm    

Chamber Port Details:

Specifications for standard port sizes and focal point tolerance

Standard Port Sizes
FlangeVG Flange Part NumberFlange ODBolt Hole PCDNumber of Bolt Holes
Port LengthAnalyser Port (Only)Phi & Theta AngleGeneral Tolerance
General ±1mm±0.5 mm±0.5°R2.0 mm

Tube Sizes:

Tube sizes as part of the standard configurable range

Tube Sizes
Stainless SteelNiFe (Mu Metal)
ØA  mmT1  mmØA mm  T1 mmT2 mm

Additional Details:

Extra Details
Surface Treatments AvailableMaximum Size mm (W x D x H)Optional RGA Analsis
Satin Polished - StandardConfigurableBespokeSize mm - 700 x 700 x 1000
Bead Blasting 600 x 600 x 1000700 x 700 x 1000Maximum Mass 500kg
Electro PolishedMax. Mass 125kgMax. Mass 500kgMaximum Temp. 250°c

Please note: Electro Polished Finish and Vacuum Annealing are available at an additional cost and extended lead time. Please tell us about any additional processing when enquiring about a chamber design. Standard Flange Grade is 304L.

Standard tolerances are ±1mm on Port Length, Analyser Port ±0.5mm. Phi & Theta Angles ±0.5°. General Tolerance R2.0mm


Why choose our chambers

  • The chamber will be leak tested before delivery.
  • We are able to guarantee a leak rate of 2 x 10-10 mbar L/s.
  • Extensive history in chamber manufacturing
  • Fast quotation process
  •  The chamber tolerances and ports will be measured and included in the CMM report.
  • Large product portfoilio
  • ISO Standard 9001:2015
  • UHV Cleaned Repeating/ Configurable Chambers Maximum Mass 125kg
  • Standard Finish - Satin Polished