The Castalloy rotary evaporator is essentially a distillation unit incorporating a rotating evaporation flask. The Castalloy rotary evaporator will evaporate solvent at a much faster rate than systems using stationary evaporation flasks.

The rotation transfers a thin film of the liquid sample to the whole of the inner surface of the flask, markedly increasing evaporation rate and assisting heat transfer from the heating bath. The rotating flask and vapour duct have a sealing system which allows operation under vacuum, further accelerating the evaporation process because of the reduction in boiling point of the solvent and efficient removal of the vapour. Vacuum operation also permits heat sensitive materials to be successfully concentrated without degradation.

The evaporators can be evacuated down to 1 mbar if the vacuum seals are maintained in good condition.

A continuous feed facility considerably increases the capacity of the units and distillate withdrawal facilities on some units allow uniterrupted operation.

Features

Applications

Model Range

There is a range of models covering an evaporation flask capacity from 1 litre l to 100 litres. The majority of these models may be used on the laboratory bench; the larger models (10, 20, 50 & 100 litres) are designed for use in pilot plants and production facilities.

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