Rotary Evaporator LRE-T2013

Introduction

Rotary Evaporator features a rotary flask volume of 50 L Φ470 mm / Φ125 flange port. It uses an upright three-layer serpentine coil as condenser, forming a double-condenser system (main + auxiliary). The piston-type feeding valve is sleeved with extension tube, allowing continuous feeding of material under vacuum. Its motor speed is frequency-controlled, with tilt (on/off) switch, auto-adjustment knob, and digital display of rotary speed. Our evaporator is ideal for chemical, pharmaceutical, and laboratory research applications.

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

Our Rotary Evaporator  efficiently separates solvents from samples under vacuum, enabling rapid concentration, purification, and solvent recovery for chemical, pharmaceutical, and laboratory research applications.

Specifications

Rotary Flask Volume	50 L Φ470 mm / Φ125 flange port
Collection Flask Volume	20 L Φ355 mm / upper Φ60 flange port × 24# standard port × 2 × lower Φ50 flange port
Volume	76 L
Rotary Motor Power	180 W
Heating Power	8000 W
Vacuum	0.095 MPa
Rotation Speed	0 to 120 rpm/min
Temperature Control Range	Room temperature to 180 °C
Temperature Control Accuracy	±1 °C
Bath Lifting Stroke	180 mm
Condensing Area	1.44 (0.95 + 0.49) m²
Gas Cylinder Ports	Left Φ40 standard port, upper Φ19 standard port, side Φ60 flange port, right Φ70 flange port
Feeding Valve	40# standard plug valve, feeding valve (pagoda joint) with Φ12 mm OD
Multi-function Port	19# standard plug valve, glass nozzle (pagoda joint) with Φ12 mm OD
Releasing Valves	24# standard plug valve ×2 pcs, releasing valve (pagoda joint) with Φ12 mm OD
Material Discharge Valve	Φ50 flange port, side discharging valve (pagoda joint) with Φ20 mm OD, 320 mm from ground
Vacuum Nozzle	Φ60 flange glass nozzle (pagoda joint) with Φ10 mm OD
Condenser Circulating Nozzles	Pagoda joint with Φ16 mm OD
Power Supply	Rotating: 220 V / 50 Hz, Heating Bath: 380 V / 50 Hz
Main Condenser Dimensions	Φ160 × 835 mm, upper Φ60 flange port, lower Φ80 flange port
Auxiliary Condenser Dimensions	Φ160 × 530 mm, upper Φ80 flange port, lower Φ60 flange, side Φ60 flange port
Bath Dimension	Φ550 × 320 mm
Overall Dimension (W×D×H)	1330 × 730 × 2340 mm
Packing Dimension	1420 × 820 × 720 mm, 830 × 730 × 910 mm (two wooden packages, 1.39 m³)
Net Weight	119.5 kg (82 + 37.5 kg)
Packing Weight	186 kg (100 + 86 kg)

Features

Constant-speed Flask Rotation

Heated Water Bath

Vacuum-Assisted Evaporation

High Borosilicate Glass

Sealing System

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.