Also available protective bell jar cages and custom vacuum chambers. Some standard size chambers are available, as are some used chambers.

As can be expected these get a little pricey because of their custom approach to construction as opposed to the glass jars above.

There are a wide variety of options depending on application and customer desires.

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Precision ground 9" steel plate for top mounting on pump or available with stand alone tripod. Release valve is included on bottom of plate. Center Plate location for vacuum source. Precision ground surface to 32 micron finish assures excellent leak free mating surface to bell jar flanges when employing silicone vacuum greases.

We also produce custom / semi-custom bell jar plates up to 22" diameter x 1" or 1.5"  thick in 304 Stainless Steel, 6061 Aluminum or plain steel.  We have options to add legs, 6" standard, greater available.  We can lay in custom holes and have various vacuum rated fittings and valves to create the complete solution.  

They mount either on a bench top or can be floor mounted.  They can have legs or be flush.  We provide generally 2 main holes typically 1/2" or 3/4" FNPT one in the center and one somewhere out towards the plates main diameter.  We also provide between 4 and 6, 3/8-16 straight tapped holes at locations roughly 1" in from main diameter.  These are used to affix legs for sitting on top of a bench or for bolting the plate to a table top or cart.