Manual Lifting Rotary Evaporator LMRE-T2010

Introduction

Manual with a 2 L evaporating flask ensures efficient solvent evaporation for laboratory distillation processes. It features a manual lift for easy handling and an adjustable immersion angle for accurate control. The digital display enhances user control over the distillation process. Our Manual Lifting Rotary Evaporator ensures reliable performance in chemical synthesis and essential oil extraction.

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

Manual Lifting Rotary Evaporator efficiently removes solvents, concentrates samples, and aids in flavor extraction. It is widely used in food processing, chemical synthesis, and environmental testing for sample purification and solvent recovery.

Specifications

Evaporating Flask	2 L
Lifting Mode	Manual
Optional Evaporating Flask	0.25 L, 1L
Condenser Type	Vertical condenser and top cold trap
Receiving Flask	1 L
Maximum Evaporating Speed	1.2 L/Hr
Condensing Surface	0.27 m2
Reachable Vacuum Rate	Less than 133 Pa
Rotation Power	25 W
Static Temperature Control Range	RT to 99°C ± 2 °C
Bath Power	1100 W
Heating Power	1000 W
Bath Size Capacity	5 L
Power Consumption	25 W
Power Supply	220 V/60 Hz
Dimension (L×W×H)	690×380×980 mm
Weight	25 kg

Features

High evaporation efficiency

Leak-resistant seal

Rapid solvent recovery

Low noise operation

Adjustable flask size

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.