Rotary Evaporator LRE-T2012

Introduction

Rotary Evaporator is a robust distillation unit which has a wide range of features, combining safety with ease of use and reliability. The key feature is the one piece quick clip, providing easy removal of sticking flasks and non-sticking vapor tube. With automatic water bath filling, maximum solvent solvent recovery rate, static temperature control range, it is perfect for complex distillation processes. The touchscreen graphic display with clear layout shows the rotation speed and temperature making it easy for operational use.

This equipment is essential for solvent evaporation and concentration processes in chemical, pharmaceutical, and food laboratories. It features efficient heat transfer and vacuum control to ensure optimal distillation results while protecting sensitive samples.

Applications

Used for flavor extraction in food industry, solvent removal in separation and recycling chemical / educational / fuel / environmental industry , to determine sample concentration , and natural product sample preparation , drying down powders (using test tube adapter) and trapping hazardous waste liquid

Specifications

Evaporating flask	20 L / F 125
Receiving flask	10 L + 3 L , bottom discharge
Condensing surface	1 m2
Maximum evaporating speed ( H2O )	5 L / hr.
Lifting type	Automatic lifting
Condenser type	Vertical condenser
Rotation speed	0 – 110 rpm
Reachable vacuum rate	< 133 Pa
Bath power	5 kW
Heating power	5000 W
Rotation power	300 W
Static temperature control range and wave	RT – 99 °C , 150 °C ± 2 °C
Bath size capacity	40 L
Material	304
Certification	and CE
Power	220 V / 60 Hz
Dimensions	1100 x 700 x 2000 mm
Weight	140 kg

Features

Chemical resistant seals

Automated water bath filling

Glass charging valve

Receiving flask equipped with bottom discharge

Motorized flask lift with safety automatic release of evaporating flask in case of power failure

Cooling surface of 10000 cm2

Bumping tube to prevent unexpected solution into receiving flask

display for user control

Frequency conversion speed controller

Anti-corrosion and wearable sealing system

Safety control circuits

Easy , safe and user friendly operation

and CE certified

FAQs

1. What vacuum level is appropriate for operating a rotary evaporator?

The appropriate vacuum level depends on the boiling point of the solvent being evaporated. For most common solvents, a vacuum level between 10-50 mbar is suitable. Lower boiling point solvents (such as ethanol) require higher vacuum (lower pressure), while higher boiling point solvents may need lower vacuum. It's important to adjust the vacuum level gradually to prevent sample bumping and ensure efficient evaporation.

2. How to prevent sample bumping during rotary evaporation?

To prevent sample bumping, you can: 1) Use a bumping tube or anti-bumping granules in the evaporating flask; 2) Control the heating bath temperature to avoid rapid temperature increase; 3) Adjust the rotation speed to ensure gentle mixing of the sample; 4) Gradually increase the vacuum level instead of applying full vacuum immediately; 5) Ensure the evaporating flask is properly centered and balanced.

3. How often should the rotary evaporator's seals be replaced?

The frequency of seal replacement depends on usage frequency, the type of solvents used, and maintenance practices. Under normal usage with non-corrosive solvents, seals should be inspected every 3-6 months and replaced if signs of wear, leakage, or reduced vacuum performance are observed. For corrosive solvents, more frequent inspection and replacement (every 1-3 months) may be necessary to maintain vacuum integrity.

4. Can the rotary evaporator be used for heat-sensitive samples?

Yes, the rotary evaporator can be used for heat-sensitive samples by utilizing the vacuum system to lower the solvent's boiling point, thus reducing the required heating temperature. For highly heat-sensitive samples, additional measures such as using a cold trap, lowering the heating bath temperature further, or reducing the rotation speed can help protect the sample from thermal degradation while maintaining efficient evaporation.

5. How to clean the rotary evaporator after use?

After use, follow these cleaning steps: 1) Turn off the heating bath and vacuum system, and allow the equipment to cool down; 2) Remove and empty the receiving flask; 3) Rinse the evaporating flask and condenser with an appropriate solvent (compatible with the sample residue); 4) For stubborn residues, use a soft brush or ultrasonic cleaner (if compatible with glass components); 5) Dry all components thoroughly before reassembly; 6) Wipe the exterior of the equipment with a clean, damp cloth.