I have 3 Hereaus Suprafuge 22 Centrifuge. At the beginning I have a few trouble with this centrifuge. But I found out that the Power Board Plastic connector can not handle the vibration. Therefore I replace it with the Military spec connector and bold the connector on the centrifuge bottom plate.
The 2 nd recomendation : I replace the AC to DC Convertor with a big AC- DC Convertor: CRYDOM HD4850-10.
This centrifuge has a very fast accellerating and also fast decellerating speed compare with my Sorvall RC5C + (= Mr snail).
The bottle is large. It can take 2.8 L compare to RC5C+ take only 2.4 L.
In production, you will safe a lot of time and produce more output.