Dear Customer,

We are specialised in metal-to-ceramics vacuum tight joints and technical ceramics for a variety of industries. Our current focus is vacuum technology.

Thank you for your RFQs. We promise to get back to you within 24 hours.









W E   P O W E R   T H E   F U T U R E

Al2O3 technical ceramics in complex applications.

Glass or ceramics to metal hermetic seals. 

We provide standard and custom-made solutions.

We make sintered alumina rings for vacuum applications, brazed vacuum-tight joints, insulators, bushings, metallised ceramic parts, housings for power semiconductors, and many others.


Alumina Systems s.r.o. is part of Alumina Redwitz Holding GmBH


Staff: 70
Contact person: Michal Rufert, CEO,


We are keen to develop expert solutions to your request.

We work with renowned technical universities in the European Union.

We offer solutions in 3D design and are fitted with a 3D printing machine.  



18/04/2015 11:44
We supply ceramic substrates, vacuum-tight products, housings for semiconductors, vacuum insulators, breaks, housings We are based in the Czech Republic, 100 km east of Prague.
22/09/2014 16:13
Voltage DC:                  5-10kV Materials:                      1.4301, Kovar, OF-Cu Insulator:                       Alumina ceramics...
22/07/2013 14:31
Voltage DC:                  >10kV Tube:                              Kovar Insulator:                       Alumina...
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Alumina Systems s.r.o. Kladská 916/65
Hradec Králové
+420 495 407 549