Drive And Stirrer; Drive Shaft For Bacterial Cultures - Infors HT Multifors 2 Operating Manual

Multifors 2 - Parallel Bench-top Bioreactor
Setup and Function

4.5 Drive and Stirrer

4.5.1 Drive Shaft for bacterial Cultures

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Stirring is carried out from below using magnetic drives. Stepper
motors and speed monitoring are used to ensure compliance with
the specified stirrer speeds.
For speed ranges, see the chapter "Technical Data".
The power is transferred via ring magnets. Two are located on the
drive shaft and two on the encapsulated motor shaft below the cul-
ture vessel in the basic unit.
1 Magnet holder
2 Location bearing of drive shaft
3 Magnet
The illustration on the left shows the lower section of a drive shaft
for a 750 mL vessel for bacterial cultures with a magnet holder, two
magnets and a location bearing for the drive shaft.
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2
1 Baffle
The magnet holder is also equipped with a baffle.
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28 March 2018