Rotary evaporator features a specially designed motor and worm gear, which provides constant rotation at speeds from 10 to 180 rpm. As the flask containing the solvent is rotated, it continually transfers a thin layer of liquid over the entire inner surface. This gives a very large surface area for evaporation, which is caused by the gentle heating from the water bath. The rotating system is fitted with a special seal that allows the apparatus to be placed under vacuum, effectively reducing the boiling point of the solvents and removing the vapor phase, making the process much more efficient. Each unit is also equipped with an easy-to-use vacuum release and a continuous feed system, which allows solvent to be constantly drawn into the rotating flask without needing to stop the operation.

Digital water bath operates from ambient temperature to 99°C (210°F) with PID temperature control stepping at 0.1°C increments. Heating coils are located directly inside the pan for the most efficient heating possible. A built-in overheat protector will shut down power, should the controller fail.

Standard Glassware Set includes 1.32 gallon (5 liters) round-bottomed evaporating flask, 0.79 gallon (3 liters) round-bottomed receiving flask, and vertical condenser. Rotary evaporators with vertical glass condenser for are great for distillation of solvents with higher boiling points.

Packaging
-The 2L mini rotary evaporator/ vacuum rotary evaporator glass parts will be wrapped with foam, then put into the carton, the mainbody portion will be packed in wooden cases;
-Both neutral and customized packaging can be available.
Shipping
-We can ship the goods to you by International Express such as DHL, UPS, TNT, EMS and so on, you can also choose the appropriate one based on your timeline and budget. Besides, you can choose to use your own shipping agent.

1. What’s the most important performance of rotary evaporator?
Air impermeability is the first important performance of rotary evaporator, which directly affect rotary evaporator normal operating and service life. Air impermeability is good or not is decided by suppliers’ design standard, manufacture standard and material choice, etc. “Actual vacuum degree” and “vacuum pressure maintaining time” are the measuring standard.

2. What’s the difference of glass lifting and bath lifting?
Bath lifting is more safe, the glass parts matched with rotary evaporator are not easy to be damaged, don’t need to lock after lifting finished. Glass lifting is mainly suitable for the rotating flask which has fixed size, lifting height is fixed, after finish lifting, need to lock.

3. Which type vacuum pump is most suitable for rotary evaporator?
Vacuum pump is the prerequisite device for rotary evaporator, TOPTION provide SHB-III vacuum pump for 1L ~ 10L laboratory rotary evaporator, SHB-B95 vacuum pump for industrial rotary evaporator, and 2XZ also supplied for rotary evaporator, etc. But using cold trap or other methods provide corrosion protection is more better.

6. How to improve rotary evaporator service life?
1) Please operating based on TOPTION rotary evaporator operation instruction.
2) After finish research, please clean rotary evaporator in time.
3) The surface of rotary evaporator should be keep clean.
4) Please contact TOPTION specialist for any problems during rotary evaporator operating.

Zhengzhou Well-known Instrument & Equipment Co.,Ltd, is a famous manufacturer of Lab equipment located in the central China.The main products include rotary evaporator , glass reactor, water circulating vacuum pump, low temp cooling liquid circulating pump and so on. So far, our products have been sold all over Asia, Europe and America, and covered most of laboratories in China. We have become one of the most popular and trustworthy brands.
Though our foreign trade is not for long, we do have a history of more than 30 years of our domestic trade. To assure the good quality & good service is our consistent aim.
We welcome new and old customers from all over the world to contact us for future business relationships and achieving mutual success!!

1. The period, scope and condition of the warranty.
(1)We offer 1 years warranty on the date of shipping from China. During the warranty time, because of manufacturing&quality problem, we offer replacement, maintenance service.
(2)The damage caused by the transportation problem shall be borne by the seller.

2. How to solve the problem of your equipment?
Please send us email of the problem, pictures or a small video will be much better. we will find the
problem and tell you how to solve it. If there is a broken, we will send you a new part, and it is free in the warranty period.

3.How to shipping the replacement parts?
We will according the actual situation to choose the suitable shipping ways. For small parts we shippin by Express.

4. Could you do customized for us?
We are a manufacturer that can provide all kinds of customized services.