Product Overview
The laboratory rotary evaporator is mainly used for continuous distillation of large quantities of volatile solvents under reduced pressure. In particular, concentrating extracts and distilling collected fractions from chromatographic separation can separate and purify reaction products. Its basic principle is reduced-pressure distillation: the evaporating flask rotates continuously while the solvent is distilled under reduced pressure.
Product Features
User-Friendly Design
- A large-capacity, wide-neck rotary flask offers a large evaporation area. It is heated while rotating in a water bath and used with a vacuum device for efficient solvent evaporation. It can be used for pilot-scale work in biology, medicine, chemical engineering, food and other fields, as part of a system with a diaphragm vacuum pump, recirculating cooler and other equipment;
- An LCD displays multiple data sets on one screen. A menu-driven interface and rotary-knob setting make observation and operation straightforward. The PID controller allows speed, temperature and time to be set easily and quickly;
- An automatic bath-lifting mechanism uses a multi-ribbed belt drive for low vibration, smooth lifting, simple construction, low noise and easy operation;
- A high-efficiency double-layer condenser provides a large cooling area and high evaporation capacity, ensuring efficient recovery from small to large sample quantities;
- A dedicated sealing system uses highly elastic PTFE seals that resist heat and corrosion and provide durability, reducing frequent seal replacement by laboratory operators. Service life is more than twice that of conventional manufacturers’ seals;
- An automatic switching valve allows continuous collection without affecting system negative pressure or solvent distillation;
- A corrosion-resistant, contamination-free Teflon discharge valve allows collected material to be emptied quickly and conveniently;
- Casters with leveling bolts allow the equipment to be secured to the floor during operation, ensuring stable, reliable experiments without accidents;
- Dual water-bath/oil-bath heating modes include boil-dry power cutoff. The bath housing uses heat-resistant, flame-retardant material to prevent accidents (water bath standard);
- Automated control: an optional vacuum controller controls sample vacuum level to automate solvent separation;
Safety Functions
- Special thermal insulation between the bath housing and inner vessel keeps the housing surface temperature low, preventing accidental burns during operation;
- The bath interior has a Teflon coating resistant to high and low temperatures and corrosion. It is easy to clean to prevent cross-contamination during experiments;
- High-efficiency double-layer condenser with a design preventing backflow from the evaporation condenser;
- The water bath safety design includes boil-dry power cutoff and a heat-resistant, flame-retardant bath housing to prevent accidents;
- An independent temperature-limit alarm system in the bath automatically stops operation when the limit is exceeded, ensuring safe experiments without accidents;
- Key electrical components have overcurrent, overtemperature, overload and other safety protections to prevent equipment accidents;
- If the equipment develops a fault, the display shows clear fault information;
Technical Specifications
| Model | BRE-05 | BRE-10 | BRE-20 | BRE-50 | |
|---|---|---|---|---|---|
| Specification | 5L | 10L | 20L | 50L | |
| Performance | Rotational Speed Range (rpm) | 20-140 | 20-130 | 20-130 | 20-110 |
| Evaporation Capacity (Max. L/h) | 2 | 3.5 | 4 | 9 | |
| Bath Temperature Control Range | Water: RT+5~99°C; oil: RT+5~180°C (optional) | ||||
| Temperature Precision | ±1°C | ||||
| Vacuum Evacuation Interface |
Safety Protection | Motor overcurrent protection, liquid-expansion overtemperature protection, earth-leakage protection, induction-type boil-dry protection | |||
| Display Type | Digital display | ||||
| Bath Lifting Method | Electric lifting | ||||
| Total Power | 2300W | 3300W | 4300W | 5300W | |
| Condensing Area (M2) | 0.28 | 0.49 | 1.29 | 1.75 | |
| Rotary Flask Volume / Sample Flask Volume | 5L | 10L | 20L | 50L | |
| Receiving Flask Volume | 3L | 5L | 10L | 20L | |
| Seal | PTFE Teflon-coated corrosion-resistant gasket | ||||
| Lifting Travel (mm) | 150 | 170 | 170 | 260 | |
| Support Stand | Without support stand | With support stand | |||
| Water Bath | Dimensions (Diameter × Depth, mm) | Diameter 280×175 | Diameter 365×225 | Diameter 445×250 | Diameter 552×320 |
| Material | SUS304 stainless-steel bath + high-temperature-resistant Teflon coating (PTFE) | ||||
| Connection Dimensions | Cooling Circulation Port (Outer Diameter) | 14mm | 18mm | ||
| Overall Dimensions (Including Glass Flasks) W×D×H (mm) | 860×410×1120 | 1100×540×2060 | 1200×570×2060 | 1300×610×2150 | |
| Power Supply / Frequency | 220V 50HZ/60HZ | ||||
Accessories
| Name | Product Image | Description | Name | Product Image | Description |
|---|---|---|---|---|---|
| Evaporating Flask | Evaporating flask, capacity 5L Evaporating flask, capacity 10L Evaporating flask, capacity 20L Evaporating flask, capacity 50L |
Main Condenser | Evaporating flask, capacity 5L Evaporating flask, capacity 10L Evaporating flask, capacity 20L Evaporating flask, capacity 50L |
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| Receiving flask TS35/20 | Receiving flask, capacity 3L Receiving flask, capacity 5L Receiving flask, capacity 10L Receiving flask, capacity 20L |
Secondary Condenser | Secondary condenser, 10L rotary evaporator Secondary condenser, 20L rotary evaporator Secondary condenser, 50L rotary evaporator |
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| Rotary Glass Shaft | Applicable model: 5L rotary evaporator Applicable model: 10L rotary evaporator Applicable model: 20L rotary evaporator Applicable model: 50L rotary evaporator |
Retaining Clamp | Applicable specification: 40 flask-neck clamp Applicable specification: 50 flask-neck clamp Applicable specification: 60 flask-neck clamp Applicable specification: 80 flask-neck clamp |
||
| Gas Guide Flask | Applicable model: 5L rotary evaporator Applicable model: 10L rotary evaporator Applicable model: 20L rotary evaporator Applicable model: 50L rotary evaporator |
Flask-neck Gasket | Applicable specification: 40 flask gasket Applicable specification: 50 flask gasket Applicable specification: 60 flask gasket Applicable specification: 80 flask gasket |
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| Air-release Valve | Applicable model: 5L rotary evaporator Applicable model: 10L rotary evaporator Applicable model: 20L rotary evaporator Applicable model: 50L rotary evaporator |
Evaporating Flask Support | Applicable model: 5L rotary evaporator Applicable model: 10L rotary evaporator Applicable model: 20L rotary evaporator Applicable model: 50L rotary evaporator |






