Sterile connections in a non-sterile environment

The BioWelder® is a fully automatic system for connecting thermoplastic tubes using a sterile welding process.


The Biowelder® makes the sterile connection of tubes possible. 

Product sterility is completely guaranteed in non-classified and also classified environments.


Marketing and sales through Sartorius Stedim AG.

Application area
The BioWelder® is suitable for connecting thermoplastic tubes which are used in biopharmaceutical manufacturing processes. Sterile connections can be easily established in a non-sterile environment.

Functional principle
Both tubes are inserted in replaceable holders, cut with a blade and then welded together. The blade is kept sterile during the entire process.

Menu guidance via LCD display
Recording of process steps
Printout of reports using printer interface