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Stainless Steel Bell Jars, Collars, Combination Baseplate / Collar, Baseplates

The SSBJ Series bell jars are manufactured from 304 stainless steel and are also intended for flat baseplates and collars. A dovetail groove is located in the base flange and viton® o-ring installed in all units. The SSBJ Series include a 4" Pyrex® viewport and a lifting eyelet. Standard finish is a satin type glass bead on all tubing and upon request electropolishing and other options are available.

 

 

Stainless Steel Bell Jars

 

Stainless Steel Bell Jars

Stainless Steel Bell Jars

 
PART NUMBER A B C D
SSBJ-1 14.00 12.00 6.00 12.00
SSBJ-2 20.00 18.00 12.00 30.00
SSBJ-3 26.00 24.00 12.00 30.00

 

 

Feedthrough Collars

All SSC collars include dovetail groove and Viton® o-ring on one side.

 

Feedthrough Collars

Feedthrough Collars

 
PART NUMBER A B PORTS FLANGES
SSC-12-4 12.00 14.00 4 NW 40
SSC-12-4MS 12.00 14.00 4 MS275-150N
SSC-12-6 12.00 14.00 6 NW 40
SSC-12-6MS 12.00 14.00 6 MS275-150N
SSC-18-8 18.00 20.00 8 NW 40
SSC-18-8MS 18.00 20.00 8 MS275-150N
SSC-24-12 24.00 26.00 12 NW 40
SSC-24-12MS 24.00 26.00 12 MS275-150N=

 

 

Stainless Steel Combination Baseplate / Collar

Both the ASA flange and the top flange of the baseplate are smooth faced flanges as typically the bell jar and pump have o-ring grooves and or gaskets. Flanges with o-ring grooves are available upon special order.

Stainless Steel Combination Baseplate / Collar

Stainless Steel Combination Baseplate / Collar

 
PART NUMBER A B ASA FLANGE PORTS FLANGES
SSCBC-12-4 12.00 14.00 ASA-9-B-6 4 NW 40
SSCBC-12-4MS 12.00 14.00 ASA-9-B-6 4 MS275-150N
SSCBC-12-6 12.00 14.00 ASA-9-B-6 6 NW 40
SSCBC-12-6MS 12.00 14.00 ASA-9-B-6 6 MS275-150N
SSCBC-18-8 18.00 20.00 ASA-11-B-8 8 NW 40
SSCBC-18-8MS 18.00 20.00 ASA-11-B-8 8 MS275-150N
SSCBC-24-12 24.00 26.00 ASA-11-B-8 12 NW 40
SSCBC-24-12MS 24.00 26.00 ASA-11-B-8 12 MS275-150N

 

 

Stainless Steel Baseplates

 

Stainless Steel Baseplates

Stainless Steel Baseplates

 
PART NUMBER A B ASA FLANGE
SSB-12 14.00 4.00 ASA-9-B-6
SSB-18 20.00 4.00 ASA-11-B-8
SSB-24 26.00 4.00 ASA-11-B-8

Product information is subject to change without notice. Product images may include options or accessories not included with the base model.

Precision Welded. Performance Proven.
For 50 years, Key High Vacuum Products, Inc. has been a trusted leader in precision-engineered stainless steel high vacuum weldments. With tens of thousands of unique weldments in use—from particle accelerators to industrial leak detectors—our expertise is proven across industries. Rooted in innovation, craftsmanship, and an unwavering commitment to customer satisfaction, we deliver high-quality, customized solutions that drive success. Every day, our team brings a unique blend of passion and precision, ensuring your goals are met with excellence—because your mission matters. Experience the Key High difference.
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