Centrifugal evaporators are used when more than one sample evaporation is required in pharmaceutical, chemical, or biotechnology industries. The concentrators have a cold trap in between the pump and the chamber containing the mixture to collect vaporized solvents and leave concentrated samples behind. Eliminating possible solvent bumping, the gentle evaporation uses a downward vacuum boil to additionally minimize boiling over and sample loss. The centrifugal evaporator systems have control panels that easily modify processing for specific requirements.