New rotary evaporator is an indispensable instrument for evaporation, concentration, crystallization, drying, separation and solvent recovery in scientific research and production processes in pharmaceutical, chemical and biological products industries. It is developed by New rotary evaporator China manufacturers research and development and rotary evaporators cost less and are used in a wide range of applications
The new rotary evaporator is developed by Chinese manufacturers. The rotary evaporator is less expensive and has a wide range of applications.

Rotary evaporators are used in teaching experiments in the laboratory. It consists of an electric heating device, an evaporation bottle, and a collection bottle, and a bump is provided on the outer surface of the evaporation bottle. The utility model has the beneficial effects that: during the experiment, when the evaporation bottle is placed on the table top, it is not easy to roll, and is not easy to break, thereby reducing the experimental expenses of the school.

Rotary evaporators are primarily used to continuously distill large amounts of volatile solvents under reduced pressure. In particular, the concentration of the extract and the distillation of the receiving liquid in the chromatographic separation can separate and purify the reaction product.

Step / Method:

Height adjustment: manually lift, turn the hand wheel above the column, turn to rise, reverse to decrease. Electric lift, the hand touches the rise button and the main unit rises, and the hand touches the down button to lower the main unit.

There are two external joints on the condenser for connecting cooling water. One end is connected to the water and the other end is connected to the water. Generally, the tap water is connected. The lower the temperature of the condensed water, the better the effect. The upper port is equipped with a vacuum joint and the vacuum pump is pumped. Used for vacuum.

Before turning on the power, turn the speed control knob to the left, press the power switch indicator light, then slowly turn to the right to the required speed. Generally, the large evaporation bottle uses medium, low speed, and high viscosity solution with lower speed. The flask is a standard interface No. 24, and is supplied with two flasks of 500 ml and 1000 ml, and the amount of the solution is generally not more than 50%.

Precautions:

1. The glass parts should be handled gently and gently, and should be washed, dried or dried before loading.

2. Each grinding port, sealing surface sealing ring and joints need to be coated with a layer of vacuum grease before installation.

3. The heating tank must be filled with water before it is energized. It is not allowed to dry without water.

4. RE-52B must be screwed into the fuse hole (19) to avoid damage to the flask.

5, if the vacuum can not be pumped up to check.

(1) Whether the joints are sealed or not.

(2) Sealing ring, whether the sealing surface is effective.

(3) Whether the vacuum grease between the main shaft and the seal ring is coated.

(4) Whether the vacuum pump and its hose are leaking.

(5) Whether the glass piece has cracks, chipping or damage. Precautions

5. When using, depressurize first, then start the motor to rotate the distillation flask. At the end, stop the machine first, then pass the atmosphere to prevent the distillation flask from falling off during rotation. As a heat source for distillation, it is often equipped with a corresponding constant temperature water tank.