RE-2002 Rotary Evaporator
RE-2002 rotary evaporator is a specially designed instrument for the evaporation of solvent (single-stage or straight distillation) under vacuum. The evaporator consists of a heating bath with a rotating flask, in which the liquid is distributed as a thin film over the hot wall surfaces and can evaporate easily. The evaporation rate is regulated by the heating bath temperature, the size of flask, the pressure of distillation and the speed of rotation. Advantages of the rotary evaporator(compared with static apparatus):With a vacuum rotary evaporator you can carry out single-stage distillation runs quickly and gently.
rotary evaporator 20l

20l rotary evaporator

The evaporation capacity of a rotary evaporator is greater than that of a conventional, static distillation apparatus. Heat transmission in the heating bath as well as inside the flask is greatly improved by rotation of the evaporating flask. Rotation greatly enlarges the active surface inside the flask,hastening the evaporation. With the liquid remaining at any one point of the flask wall for a short time only, it is subject to minimum stress during the distillation (no overheating, no incrustation). Bumping and foaming are greatly reduced by the rotation.

20L rotary evaporator rotation shaft

20 liter rotary evaporator easy drain valve

large scale rotary evaporator conderser with top cap

RE-2002 rotary evaporators are used for:

1.Distillation of solvent.

2.Concentration of solutions and suspensions.

3.Crystallization or recrystallization.

4.Synthesis and purifying of fine chemicals.

5.Soxhlet extraction.

6.Powder and granules drying.

7.Recycling of solvent.


1. International advanced EL gas-tight system keeps high vacuum degree. Gas-liquid separator, no reflux.

2. Double condenser, collection rate over 95%.

3. The rotating flask is easy to install and setup.

4. Continuous feed are available. (Inlet Valve)

5. Water bath, intelligent PID temp. controller, can be lifted up and down.

6. Reasonable structure, exquisite material.

Mechanical parts are made of stainless steel and aluminum die casting.

Glass parts are made of corrosion resistance, high temperature resistance, borosilicate glass.

Rubber parts adopt new standard materials, easy to change for users.

7. Built-in transmission system, frequency conversion speed regulation, stable and reliable speed.

8. Explosion-proof system is optional.

9. 110 V/60HZ can be customized.

Optional equipment:

Circulating water vacuum pump: Used to provide a vacuum source.

Low temperature cooling liquid circulation pump: For condensation and reducing waste of materials.

20l rotary evaporator

rotary evaporator 20l

Model RE-2002
Evaporating Flask (L) 20
Receiving Flask(L) 10
Rotating Motor(W) 180
Rotating(R/min) 0-120
Evaporation Speed(L/H2O) >5L/h
Condenser Cooling Surface (sq.m.) 1
Vacuum Degree 0.098Mpa
Sealing Mode PTFE Sealing System
Max Vacuum Degree <133pa
Water Bath Configuration Water Bath Lifting or Electric Hois
Water(Oil) Bath Power(kw) 5
Temperature Control Range 0-99(250)℃
Temp Fluctuation/Resolution ±1/1℃
Condenser Vertical Double Condenser
Voltage (V/Hz) 220V  50/60
Note Customized configuration is available.
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