As an essential and common lab equipment, a rotary evaporator is always used for concentration, crystallization, drying, separation and solvent recovery in pharmaceutical, chemical and bio-pharmaceutical fields. It is especially suitable for the concentration and purification of biological products which are easy to decompose and denature at high temperature.
What’s the Feature of Rotary Evaporator Comparing to Other Evaporators?
It has the advantages of small structure, efficient, easy to observe and no metal ion pollution. It is applicable for laboratory, production and valuable material extraction. Its leakproofness ability can compare favorably with foreign equipment while it remain improvement in appearance and humanization design.
Why the Rotary Evaporation Distillation Has Wider Application?
Its popularity comes from many reasons and there are three main factors concluded in the following:
1. Faster evaporation rate.
The rotary flask is one of the key components of a rotary evaporator. It can rotate at a constant speed so that materials can form a widespread film evenly on the inner surface of the flask, which greatly improves the evaporation efficiency. As well, continuous feeding and high vacuum degree contributes to the faster evaporation rate.
2. Better security.
The stainless steel and aluminum alloy are widely used in the mechanical structure, and all glass parts are made of heat-resistant high borosilicate glass, which ensure a better security. Besides, the water/oil bath can be equipped with transparent covers to prevent splashing, and anti-explosion frequency changer and dynamo are available as well. All of these designs contribute to better security.
3. More convenient operation.
It’s much more convenient to use a rotary evaporator, because the stepless speed regulation, digital display K Type Sensor and intelligent temperature control and other designs adopted by it.
In conclusion, the rotary evaporator is more widely used than other distillation equipment. It is generally used for the extraction and concentration of solid drugs, which can prevent the spray of chemicals. What’s more, people also use a rotary evaporator to concentrate liquid through removing water from it. Yet the reduced pressure evaporator and traditional evaporator can only be used for drying of easily decomposable liquid medicines compared to the rotary evaporator.
How to Select All Kinds of Rotary Evaporators?
As for structure, our R series products all have excellent corrosion resistance ability and leakproofness ability. According to the solvent volume, 2L, 3L, 5L’s machine is fit for lab and sample test; 5L, 10L, 20L’s machine is fit for medium experiment; 20L, 50L’s machine is fit for medium experiment and production, especially suitable for the extraction of metal ion-avoiding polluted material.