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Our Rotary Film Evaporator is available with CE Marking as per PED - 97/23/EC, The Machine Directive - 98/37/EC, The European Low Voltage Directive - 73/23/EEC, The EMC Directive - 89/336/EEC. We have carved a niche as one of the overruling Rotary Evaporator Manufacturers based in India. In addition to this, we are also counted among the major Rotary Vaccum Film Evaporators Suppliers. The Rotary Film Evaporator is essentially a Thin Film Evaporator incorporating a rotating evaporation flask. The rotary evaporator will evaporate solvent at a much faster rate than systems using stationary evaporation flasks, due to higher convectional heat transfer coefficient. The rotation transfers a thin film of the liquid to the whole of the inner surface of the flask, markedly increasing evaporation rate due to higher heat transfer between the flask, bath and the thin film.
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. Besides the reduction in boiling point, there is a considerable decrease in the residence time of the fluid, which also permits heat sensitive materials to be successfully concentrated without degradation. The evaporators can be evacuated down to less than 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 uninterrupted operation.
The units can be offered with full automation incorporating a PLC based system or even SCADA for real time data acquisition and control.
There is a range of models covering an evaporation flask capacity from 1 litre 5 litres. The majority of these models may be used on the laboratory bench; the larger models (10, 20, 50, 100 litres and above) are designed for use in pilot plants and production facilities.