Rotary Evaporator Suppliers Tell Us the Advantages and Disadvantages of Rotary Distiller

The use of standard distillation glass components (without rotating distillation device) under the action of a diaphragm vacuum pump can also achieve sample distillation, but the rotary distiller has the following advantages:
1. Due to the centripetal force and friction between the liquid sample and the evaporating flask, the liquid sample forms a liquid film on the inner surface of the evaporating flask, and the heating area is large;
2. The force generated by the rotation of the sample effectively inhibits the boiling of the sample.

The biggest drawback in the application of rotary distiller is that the boiling of some samples, such as ethanol and water, will cause the experimenter to lose the collected samples. For samples that are particularly difficult to distill, including those that are prone to foam, the rotary distiller can also be equipped with a special condenser tube.

Operating procedures of rotary distiller
1. Use a hose to connect with the condensate trap, and a vacuum hose to connect with the diaphragm vacuum pump.
2. Pour water into the heating tank first. Pure water is easy to use. Tap water should be left for 1-2 days before use.
3. Adjust the angle of the main unit: Just loosen the connection screw between the main unit and the column. The host can tilt arbitrarily between 0-45 degrees.
4. Connect the condensed water, switch on the power supply, connect the evaporation flask with the host (don’t let go), turn on the diaphragm vacuum pump to reach a certain vacuum, and release your hand.
5. Adjust the height of the main unit: press down the pressure rod at the bottom of the heating tank, adjust the arc left and right to make it reach the appropriate position and then lift the pressure rod to reach the desired height.
6. Turn on the speed control switch, the green light is on, adjust the speed knob on the left side, and the evaporation flask starts to rotate. Turn on the temperature control switch, the green light is on, adjust the temperature control knob on its left side, the heating tank starts to automatic temperature control heating, and the instrument enters trial operation.
7. After the evaporation is completed, first, turn off the speed control switch and the temperature control switch, press the lower lever to make the host rise, then turn off the diaphragm vacuum pump, and open the vent valve above the condenser to communicate with the atmosphere, remove the evaporating flask, and the evaporation process ends.
rotary distillerrotary evaporator suppliers MT1-2000A-W

Notes for rotary distiller
1. The glass parts should be handled gently before assembly, and they should be cleaned, wiped, or dried before assembly.
2. A layer of vacuum grease must be applied to each grinding port, sealing surface, sealing ring, and joints before installation.
3. It must be screwed into the safety hole to prevent damage to the flask.
4. If the vacuum cannot be drawn up, check each joint, whether the interface is sealed with a sealing ring, whether the sealing surface is effective, whether the vacuum grease between the main shaft and the sealing ring is coated, whether the diaphragm vacuum pump and its hose are leaking, whether the glass is cracked or broken, The phenomenon of damage.
5. When the work is over, turn off the switch and unplug the power supply.

Troubleshooting of rotary distiller
1. The motor does not rotate
Take the method:
Plug the plug again, connect, and disconnect.
Update the fuse or confirm that the power supply is normal.
Update the circuit board or electric control box.
Connect the ground properly or change the work location.
Eliminate according to P33 of the inverter manual.

2. The bath is not heated, the detection content
Take the method:
Detect power supply 220V.
Change the heating ring. Replace the solid state relay or relay board.
Change the temperature controller.
Check the probe wiring or update the probe.

3. Bath pot flush temperature detection content
Take the method:
Change the temperature controller.
Replace the solid state relay or relay board.
Change the probe or temperature controller.

4. The vacuum can not be tested content
Take the method:
Empty the solvent and try with an empty bottle.
Vacuum oil pump oil (water) exchange, cleaning, and maintenance.
Re-assemble, the glass wool sandwich panel is ground and cleaned, vacuum silicone grease is applied, and the flanges are aligned and tightened.

If the above contents cannot meet your requirements, please contact rotary evaporator suppliers HWACH (Tel:+86-29-89284429 and email: for consultation.