Manual Lifting Rotary Evaporator LMRE-T2020

Introduction

Manual operates at 20 to 200 rpm, ensuring efficient and controlled solvent evaporation. It features a dual heating mode for accurate temperature regulation and an adjustable immersion depth. The timing interval function works in clockwise and anticlockwise directions for efficient drying and mixing. Our Manual recovery for chemical synthesis and 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 enables controlled solvent evaporation, ensuring high-purity compound recovery. It is utilized in chemical synthesis, pharmaceutical research, and essential oil extraction, delivering reliable performance for diverse laboratory applications.

Specifications

Speed Range	20 to 200 rpm
Motor Type	Brushless DC motor
Clockwise and Anti-clockwise	Yes
Control Accuracy Water	±1°C
Control Accuracy Oil	±3°C
Stroke Displacement	Manual 110 mm + auxiliary 100 mm
Interval Time Setting Range	1 to 999 seconds
Protection Class	IP20
Display	display for speed, temperature, and time
Interface	Yes
Permissible Ambient Temperature	5 to 40°C
Permissible Relative Humidity	≤ 80 % RH
Heating Temperature Range	RT to 180°C
Heating Power	1200 W
Power Consumption	1245 W
Power Supply	100 to 120/200 to 240V, 50/60 Hz
Dimension Main Unit (L×W×H)	440×320×450 mm
Dimension Heating Bath (L×W×H)	300×300×240 mm
Weight Heating Bath	3 kg
Weight Main Unit	7 kg

Features

Dual heating mode option

Adjustable immersion depth

Secure sealing system

Integrated cooling mechanism

Corrosion-resistant construction

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.