China Mini Distillation Equipment Rotovap 5L Vacuum Rotary Evaporator Price

RE-501 rotary evaporator’s maximum capacity is 5000ml, rotate speed is 5-120r.p.m, motor power is 40W. RE-501 rotary evaporator is the basic rotary evaporator series product of Henan Lanphan at present, it has manual up and down handle. The independent developed and elaborate designed machinery and glass components can accurately set the location of glass component. The digital display rotate speed and heating kettle’s temperature helps you optimally control all distillation process. New type fixation system greatly simplified the operation process of changing evaporating flask.

Packing List of 5l rotary evaporator manual

5l rotary evaporator manual has following features:

Manual up and down heating kettle, which is easy and intuit to handle;
Heating kettle has a wider application range that is applicable for both water and oil;
Heating kettle's operation button has the function of temperature locking, in order to easily control experimental temperature;
Equipped with efficient vertical condensate glass component, condensation area can reach up to 1500cm², fast condensation speed, recovery rate almost 100%;
Digital display rotate speed and heating kettle's temperature helps you observe parameter at a glance;
Has the function of dry burning resistant protection and safe temperature loop;
Wide speed adjustable range, can set speed freely between 5-120rpm;
Smooth starting, can positive and negative inversion operate;
Durable design, can choose plate bursting disk glass component as needed;
One-hand operation makes it convenient to conduct experiment;
There has piston under recycling bottle, convenient to recycle solvent.
Rotary evaporator, also called rotavap or rotovap, is a commonly used lab instrument in chemistry laboratory, mainly used in continuous distillation of a large amount of volatile solvent under negative pressure. Especially for the concentration of extract liquor and distillation of receive liquid when chromatograph. Because evaporator is vacuumized, to be distilled solvent's boiling point depressed. In general, ingredient which is distilled form sample is the target ingredient in chemical research, such as extracting some natural ingredient from organic synthesis sample. Rotary evaporator mostly is used for isolating low-boiling ingredient, such as hexane, ethyl acetate, that presenting liquid state under indoor temperature and normal pressure. Besides, it can dislodge some ingredient in sample by standard operation.

1. Rotary evaporator matching use with circulating water vacuum pump to offer a vacuum environment for reduced pressure distillation, they are widely used for vacuum filtration, vacuum evaporation, vacuum degassing, etc..

2. Rotary evaporator matching use with GDSZ series high and low temperature circulating pump to quickly cooling or warming, the circulating pump is an efficient equipment for quick temperature adjustment. 

3. Rotary evaporator matching use with DLSB series low temperature cooling liquid circulating pump to conduct chemical reaction and medicine storage which requires low temperature environment.

1. Ask: What’s the operating principle of 5l rotary evaporator?
Answer: Under the condition of negative pressure, evaporating flask rotating in the thermostat water bath, which makes solution form a thin film in bottle wall, so as to increase the evaporation area. Evaporating efficiently under low temperature, then condensate recycling through condenser pipe and concentrate to isolate the material to reach experiment requirements.

2. Ask: What’s the core technology of 5l rotary evaporator?
Answer: The key is system’s gas tightness, that is whether system can keep high vacuum degree under all sorts of solvent’s corrosion and movement state. Henan Lanphan’ s R series instrument, which is sealed by composite material four fluorine rubber and glass, can stand all sorts of solvent, has reliable gas tightness and can maintain a high vacuum degree above -0.096MPa.

3. Ask: What factor decides the working efficiency of 5l vertical rotary evaporator?
Answer: For same type equipment, mainly includes: steam temperature, vacuum degree and cooling water temperature. Restricted by some material’s thermolability, the steam temperature may have certain limitation when working, so high vacuum degree and low cooling water temperature are two main factors for efficiency improving (can select cryopump to lower the temperature)
 
4. Ask: What’s the difference between vertical and inclined condenser?
Answer: They have no difference essentially. Vertical condenser is gradually popular because of its small space usage and convenience for transportation and use. Most high-capacity instruments use vertical condenser.

5. Ask: What’s the design basis of main engine and water bath kettle rising and falling?
Answer: It’s mainly from the consideration of convenience, safe and economical. Generally, small-size rotary evaporators below 5L use main engine rising and falling and evaporators which are above 5L use water bath kettle rising and falling.