Type: Small/Large-Sized Rotary Evaporator
Glass Material: (GG17) Borosilicate Glass 3.3
Flavor Capacity: According to model
Condenser Structure: Double Vertical / Triple Vertical
Motor Speed: According to model
Power: According to model
Lifting Method: Manual/Electric
Temperature Control Range: According to model
Temperature Adjustment Accuracy: ±1
Small and Large Rotary Evaporators for Laboratory and Process Applications
Our rotary evaporators are designed for the continuous distillation of volatile solvents under reduced pressure. By combining controlled rotation, uniform heating, vacuum distillation and efficient condensation, the system enables effective solvent evaporation, recovery and solution concentration.
The product range includes small-sized and large-sized rotary evaporators, with both Technical (Tech.) and Standard (Std.) configurations available to meet different laboratory and process requirements.
Applications include solution concentration, solvent recovery, chemical separation, essential oil extraction and solvent removal from samples.
| Series | Configuration | Typical Capacity Range |
| Small-sized Rotary Evaporator | Tech. | 1–5 L |
| Small-sized Rotary Evaporator | Std. | 1–5 L |
| Large-sized Rotary Evaporator | Tech. | 5–50 L |
| Large-sized Rotary Evaporator | Std. | 10–50 L |
Choose the appropriate series according to flask capacity, condenser configuration, heating requirements, lifting method and speed-control requirements.
The small-sized rotary evaporator is designed for laboratory-scale solvent evaporation, concentration, separation and recovery. It is available in both Tech. and Std. configurations, with rotary flask capacities from 1 L to 5 L depending on the model.
The compact configuration is suitable for laboratory workflows where controlled evaporation and solvent recovery are required.
The Small-sized Rotary Evaporator (Tech.) series is available in 1 L, 3 L and 5 L configurations, with different condenser, flask and lifting configurations. Models include ZFY-1L, ZFY-3L, DZFY-1L, DZFY-3L and DZFY-5L.
| Parameter | ZFY-1L | ZFY-3L | DZFY-1L | DZFY-3L | DZFY-5L |
| Rotary Flask | 1 L | 3 L | 1 L | 3 L | 5 L |
| Collection Flask | 1 L | 2 L | 1 L | 2 L | 3 L |
| Condenser | Double Vertical | Triple Vertical | |||
| Rotation Speed | 20–120 rpm | 10–310 rpm | 20–160 rpm | ||
| Heating Bath Power | 1.3 kW | 2 kW | |||
| Temperature Range | RT + 5-180°C | ||||
| Temperature Accuracy | Water ±1°C / Oil ±2°C | ||||
| Lifting Method | Weight-balanced lift (100mm) + auxiliary extension (150mm) | Motorized lift (100mm) + manual extension (130mm) | |||
| Power Supply | AC 220 V, 50 Hz | ||||
Technical specifications are based on the supplied product data.
The Small-sized Rotary Evaporator (Std.) series provides 1 L, 3 L and 5 L rotary flask configurations and is designed for routine laboratory evaporation, concentration and solvent recovery applications.
Models include RE-201, RE-301 and RE-501.
| Parameter | RE-201 | RE-301 | RE-501 |
| Rotary Flask | 1 L | 3 L | 5 L |
| Collection Flask | 1 L | 2 L | 3 L |
| Condenser | Double Vertical | ||
| Rotation Speed | 0–120 rpm Digital Display Of Rotational Speed | ||
| Heating Bath Power | 1.5 kW | 2 kW | 2 kW |
| Temperature Range | RT-180°C | ||
| Lifting Method | Manual | ||
| Overall Dimensions | 700 × 330 × 785 mm | 760 × 330 × 1030 mm | 760 × 330 × 1030 mm |
| Gross Weight | 25 kg | 35 kg | 40 kg |
| Power Supply | 220 V / 50 Hz | ||
The supplied documentation specifies different flask shapes and joint configurations for the individual models.
The large-sized rotary evaporator series is designed for larger-volume solvent evaporation, concentration and recovery applications.
Depending on configuration, the series covers rotary flask capacities from 5 L to 50 L, providing a larger processing capacity than the small-sized models.
Large-sized Rotary Evaporator – Tech.
The Large-sized Rotary Evaporator (Tech.) series includes R1005, R1010, R1020 and R1050, with rotary flask capacities of 5 L, 10 L, 20 L and 50 L, respectively.
| Parameter | R1005 | R1010 | R1020 | R1050 |
| Rotary Flask | 5 L | 10 L | 20 L | 50 L |
| Collection Flask | 3 L | 5 L | 10 L | 20 L |
| Condenser | Double Vertical | |||
| Rotation Speed | 20–150 rpm | 20–140 rpm | 20–140 rpm | 20–120 rpm |
| Heating Bath Power | 2 kW | 3 kW | 4 kW | 6 kW |
| Temperature Range | RT +5-95°C | |||
| Temperature Accuracy | ±1°C | |||
| Lifting Method | Electric | |||
| Power Supply | 220 V / 50 Hz | |||
The Large-sized Rotary Evaporator (Std.) series is designed for larger-scale evaporation and solvent recovery applications. The available models are RE-1002, RE-2002, RE-3002 and RE-5002, with rotary flask capacities from 10 L to 50 L.
| Parameter | RE-1002 | RE-2002 | RE-3002 | RE-5002 |
| Rotary Flask | 10 L | 20 L | 30 L | 50 L |
| Collection Flask | 5 L | 10 L | 20 L | 20 L |
| Condenser | Triple reflux condenser | |||
| Rotation Speed | 0–120 rpm | |||
| Heating Bath Power | 3 kW | 5 kW | 6 kW | 6 kW |
| Temperature Range | RT-99°C | |||
| Temperature Accuracy | ±1°C | |||
| Lifting Method | Manual | |||
| Power Supply | 220 V / 50 Hz | |||
For the larger models, the supplied documentation specifies additional customer-side electrical requirements such as dedicated sockets or air switches.
Rotary evaporation is based on vacuum distillation.
Under reduced pressure, the material-containing flask rotates at a controlled speed while the heating bath provides uniform heating. The reduced pressure lowers the boiling point of the solvent. As the flask rotates, the liquid forms a thin film on the inner surface, promoting evaporation.
The solvent vapor then enters the condenser, where it is condensed and collected in the receiving flask.
This combination of vacuum, rotation, controlled heating and condensation enables continuous solvent evaporation and recovery.
Rotary evaporators can be used for:
Solution Concentration: Concentrate solutions by removing volatile solvents under reduced pressure.
Solvent Recovery: Recover evaporated solvents through the condenser and collection flask.
Chemical Separation: Support separation processes involving volatile solvent components.
Essential Oil Extraction: Used for evaporation and concentration processes in essential-oil-related applications.
Sample Solvent Removal: Remove solvents from laboratory samples after synthesis, extraction or separation.
Extract Concentration & Crystallization: Particularly suitable for concentration and crystallization of extracts.
Chromatographic Applications:Used for distillation of receiving liquids in chromatographic separation processes.
These applications are specifically identified in the supplied rotary evaporator documentation.
3.3 Borosilicate Glass
The glass components are made from 3.3 borosilicate glass, providing the physical and chemical properties required for rotary evaporation applications.
Efficient Condensation
Glass serpentine coil condensers provide a large condensing area and support solvent recovery efficiency.
Controlled Rotation
Electronic, frequency-conversion or DC stepless speed control is available depending on the model.
Precise Heating
The heating system uses PID temperature control, with temperature regulation accuracy specified for each series.
Reliable Dynamic Sealing
The PTFE + Viton double-seal design helps maintain system sealing during rotary operation.
Flexible Lifting Design
Depending on the model, the heating bath is available with weight-balanced, motorized, electric or manual lifting mechanisms.
Expandable System Configuration
A cooling circulator and vacuum pump can be connected as optional supporting equipment.
Step 1 — Select Capacity
Small-sized
Large-sized
Step 2 — Select Configuration
Step 3 — Select Supporting Equipment
Depending on the configuration, the rotary evaporator can be connected with:
A rotary evaporator is mainly used for continuous distillation of volatile solvents under reduced pressure. Typical applications include solution concentration, solvent recovery, chemical separation, essential oil extraction and solvent removal from samples.
The rotary flask is heated uniformly while rotating under reduced pressure. The reduced pressure lowers the solvent boiling point, while rotation forms a liquid film that promotes evaporation. The solvent vapor is then condensed and collected.
The supplied product range covers small-sized models from 1 L to 5 L and large-sized models from 5 L to 50 L, depending on the specific series.
The temperature range depends on the model. Small-sized Tech. models are specified at room temperature +5 to 180°C, while small-sized Standard models are specified at room temperature to 180°C. Large-sized models have lower specified bath-temperature ranges depending on configuration.
Yes. A cooling circulator can be connected as optional supporting equipment according to the system configuration.
Q6. What is the difference between the Tech. and Std. series?
The Tech. and Std. series use different model configurations, capacities and equipment specifications. The main differences can be found in parameters such as rotational-speed range, condenser configuration, heating-bath lifting method and temperature range. The appropriate series should be selected according to the required process and capacity.
Yes. For custom requirements, please contact us with your required flask capacity, rotational-speed range, heating requirements and supporting equipment configuration.
Need help selecting the right rotary evaporator?
Tell us your required:
Our team can recommend a suitable Small-sized or Large-sized Rotary Evaporator and the corresponding Tech. or Std. configuration.
Contact us to obtain relevant TDS
If you need any service, please contact us
Click to view the contents of our FAQs
