Sartorius Stedim Biotech Gmbh

Markus Haeusser

Stefan Weisshaar

Jens Ludwig

Stefan Zeuch

A mixing apparatus () for mixing a fluid and/or solid. The mixing apparatus includes a mixing container () having an interior in which the fluid and/or solid can be arranged. A feed-through passage () extends through a container wall () of the mixing container. A drive shaft () is fed through the feed-through passage, to drive a stirring element () arranged at least partly in the interior of the mixing container. The stirring element is used to mix the fluid and/or solid arranged in the mixing container. A drive-side shaft end () of the drive shaft couples the drive shaft to a drive () arranged outside of the mixing container. An adjustable seal () seals off the feed-through passage. A setting apparatus () is provided to switch the adjustable seal into at least two sealing operation states having different sealing effects.

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Goettingen, Germany

Markus Haeusser