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3L cheap price laboratory rotary evaporator
Working principle:
The evaporation flask rotates at a constant speed and the water bath is heated at a constant temperature. Under this condition: the material forms a large-area uniform thin film on the inner wall of the evaporation bottle for quick evaporation. The evaporation efficiency can be improved under vacuum conditions (a vacuum device needs to be connected). When the solvent vapor passes through the glass condenser coil, the vapor is cooled to a liquid ( a cooling device need to be connected) and recycled in a collection flask.
This series of products needs to be equipped with vacuum devices (circulating water type, rotary vane type, diaphragm type and other vacuum pumps), or cooling and circulating devices to form a system devices.
Basic configuration:
• The parts in contact with the material are all made of high borosilicate glass (expansion coefficient 3.3) and PTFE materials, which have stable performance and are not easy to react with the materials.
• The stent is made of cold plate anti-corrosive spray + aluminum alloy material, and the bath is made of 304 stainless steel.
• The sealing system uses PTFE+ fluororubber compound sealing.
• Vacuum pressure gauge shows real-time vacuum by pointer.
• The piston-type feeding valve is sleeved with PTFE extension tube, which can be continuously fed to the evaporation bottle under vacuum status.
• Upright double-layer serpentine coil as integrated condenser.
• Rotating and heating is controlled by power switch, which is a double-joint tilt button (ON-OFF).
• Electronic stepless speed regulation, fine-adjustment by knob, digital display of rotating speed .
• Thermstatic bath with temperature digital display function, K type sensor + stainless steel probe at the bottom of the pot.
• The lifting of bath is controlled by handwheel.
• Rotating and heating double fuses safety protection.
Technical parameters:
Model | RE-301 |
Voltage/Frequency | 220V 50Hz/110V 60Hz |
Total Power | 2040W |
Rotary motor power | 40W |
Heating power | 2000W |
Vacuum | 0.098Mpa |
Rotary flask volume | 3LΦ195mm/Φ50 flange port |
Collecting flask volume | 2LΦ166mm/35# ball mill port |
Rotary speed | 0-120rpm/min |
Temperature control range | Room temperature-180℃ |
Temperature control accuracy | ±1℃ |
Bath lifting stroke | 200mm |
Condenser dimension | Φ100×530H(mm) lower 35# ball mill stopper |
Condensing area | 0.26m2 |
Material feeding valve | 19#standard plug valve, feeding valve (pagoda joint) with 10mm outer diameter |
Vacuum nozzle | pagoda joint with 10mm outer diameter |
In and out circulating nozzle of condenser coil | pagoda joint with 12mm outer diameter |
Bath dimension/weight | Φ265×160H(mm) about 8.8L 7.3KG |
Overall dimension(W*D*H) | 740×330×970mm |
Net weight | 23KG |
Packing dimension | 990×620×470mm wooden package 0.29m³ |
Packing weight | 40KG |


Warranty Service
From the date of acceptance, we can provide 12 months quality guarantee, all the maintenance costs and accessories parts costs are free within the date of quality guarantee (spare and accessories parts costs from instrument faults by human factors will be charged proper costs).
After the date of quality guarantee, we will in charge of maintain instrument, and charge proper costs according to actual maintenance costs.
Our motto: First-Rate Service, First-Rate Quality.



1. Are you the factory?
Yes, we’re.
Established in 2002, we manufacture rotary evaporator, cylindrical jacketed reactor, cryostat etc.
In 2006 year, we associated with our soul partner QiXin instrument, developed commonly new production line, now, we manufacture CO2 Incubator, Cooling Incubator, Shaker Incubator, Blast Oven, Vacuum Oven, Climatic chamber and those products. Etc.
2. What is the delivery time?
Normally, we have stocks for our hot sale products, the delivery time is about 5-10 days. For the customized instrument, it’s about 10~20 days.
3. What’s the warranty period? How do you provide this?
One year (12 months).
We have very strict inspection, the instruments which you received is high-quality and reliable.
If there’s any error, we’ll provide you the on line solution with in 12 hours. We’ll provide you the spare parts and the shipping cost totally free.
If the problem was caused by the instrument quality, and cannot be repaired, we’ll ship you the new one.
New products from manufacturers at wholesale prices