There are so many ways, methods of supplying kinetic energy to a bioreactor or a fermenter. More or less all agitation (except air lift) is performed via electrically driven motors of various design. Most servo motors require some sort of adapter and coupling.
We have assembled a fair amount of information to guide anyone through the labyrinth. Find the info here – www.cercell.com/support/drive-system-details
The strongest adaptor designs used by the 25 global PCS manufactures are the ID39-B from Sartorius and ID25-A from Applikon.
If you have questions or can find mistakes I will appreciate to hear from you.
With kind regards from