RE-5299 2L roatry evaoprator

2l rotary evaporator introduction：

RE-5299 2L rotary evaporator speed 5-120r.p.m, motor power 25W. RE-5299 2L rotary evaporator adopts micro-motor variable speed, which can realize the rise or fall of the host machine by manual or electric means, embedded sensor, digital display temperature, automatic temperature control, more accurate and convenient experimental operation. The rotary evaporator can rotate to form a thin film under constant temperature heating and negative pressure conditions, evaporate efficiently, and then recover the solvent after cooling, especially suitable for crystallization, separation, and solvent recovery of heat-sensitive materials.

2l rotary evaporator product performance：

1. RE-5299 2L rotary evaporator is composed of a group of stable and reliable micro motors, speed measuring motors and integrated circuits, and realizes stepless speed regulation of 0-120 rpm under the action of electronic speed regulation;

2. Embedded sensor, digital display temperature, automatic temperature control;

3. Loosen the Phillips screw, the host can be tilted arbitrarily within the range of 0-15°;

4. The condensing system of the RE-5299 2L rotary evaporator is connected to the machine head, which can be tilted accordingly, and the material can be fed continuously. The vertical high-efficiency serpentine condenser makes the solvent condense quickly, and the recovery rate is close to 100%;

5. Digital display speed and heating pot temperature, all parameters are clear at a glance;

6. It has anti-dry protection function and safe temperature circuit;

7. The speed of the micro-motor is variable, and the automatic lifting of the motor can be realized by pressing the switch by hand. The speed range is wide, and the speed can be set freely between 0-120rpm;

8. Stable start, forward and reverse operation;

9. Sturdy and durable design, glass components coated with explosion-proof film can be selected according to needs;

10. The closed resistance wire heating tube is used, connected to the temperature digital display, which can automatically switch on or off the power supply to achieve automatic control of the water temperature in the tank;

11. Teflon and fluorine rubber sealing ring are double-sealed to maintain high vacuum;

12. The external sink is made of high-quality stainless steel, which can prolong the service life.

Advantages of 2l rotary evaporator steamer：

1. CE, ISO certified product patent certificate.

2. It can meet the requirements of continuous feeding without stopping the machine.

3. Electric lifting, knob button adjustment, digital display, easy to operate.

4. The motor adopts international copper wire and worm gear transmission technology, which has long continuous running time and good stability.

5. The sealing part adopts the principle of flange sealing to maintain high vacuum.

6. This type of rotary evaporator is made of high-quality borosilicate glass, which is heat-resistant and shock-resistant, and is not easy to break. The mechanical parts and water bath are made of 304 stainless steel and aluminum alloy.

7.1°c-100°c temperature adjustment, 0-120(r/m) speed adjustment, to meet various needs of laboratory instruments.

8. The temperature accuracy is ±2°C.

2l rotary evaporator supporting equipment：

shz-d(iii) is a table-top circulating water vacuum pump, which can be used as an auxiliary equipment for small rotary evaporation. The RE-5299 2L rotary evaporator is used together with the circulating water vacuum pump to provide a vacuum environment for the vacuum distillation reaction. They are widely used in vacuum filtration, vacuum evaporation, vacuum degassing, etc. The pump is based on the multi-use vacuum of circulating water, according to the characteristics of the small laboratory area, referring to the Japanese desktop pump, one-time molded shell, reduced volume and improved with small size, light weight, beautiful appearance and so on. Optional double-meter double-tap, four-meter four-tap. The two sides of the vacuum pump with four meters and four taps are the same, and can be turned on and off on any side.

The capacity of DLSB 5/10 is 5L, and the minimum cooling temperature is -10 degrees. The RE-5299 2L rotary evaporator is used together with the low-temperature coolant circulation pump to carry out various chemical reactions and drug storage that require a low-temperature environment. The low-temperature coolant circulation pump mainly provides a constant cold source for laboratory equipment. It adopts mechanical refrigeration. , food industry, metallurgical industry, scientific research, genetic engineering, polymer engineering and other scenes that need to keep low temperature.

2l rotary evaporator operation guide:

1. Preparations：

●Assemble the machine and connect the cryopump and vacuum pump (the vacuum tube of the vacuum pump is connected to the rotary evaporator

The interface in the middle of the condenser, the silicone tube of the cryopump is connected to the interface on both sides of the condenser);

●Turn on the power supply of the cryopump (turn on the circulation first, then turn on the refrigeration);

●Turn on the vacuum pump, start vacuuming, and pay attention to the reading of the vacuum gauge. When the vacuum gauge maintains the maximum vacuum for a period of time, it indicates that the equipment is well sealed and can start feeding.

2. Feeding method：

●Put the rotary evaporator into a negative pressure state, and connect the feeding valve with the added sample with a hose;

●Open the feeding valve, the sample will be pumped directly into the rotary bottle, close the feeding after the feeding

Feed valve valve.

3. Adjust height and bath heating：

●Turn the SPEED knob at the bottom right of the control panel to the left to the minimum, and then turn on the power.

●Then, turn on the «OPEN» switch located on the lower left of the control panel, and adjust the height of the rotary bottle so that

Place the spinner bottle in a water bath.

●Adjustment method: electric lifting, there are two buttons RISING/FALLING on the upper right, press «RISING» to rotate the bottle to rise,

Press «FALLING°» to rotate the bottle down.

●Pour pure water into the heating bath, submerge 1/2 of the spinner bottle, just do not overflow.

●To heat the bath, turn on the «HEATER» switch located on the lower left of the control panel, and the bath will start to heat.

FAQ:

1. Question: What are the main factors affecting the efficiency of RE-5299 2L rotary evaporator?

Answer: As far as the machine of the same specification is concerned, there are mainly: steam temperature, vacuum degree and cooling water temperature. Restricted by the heat resistance of certain materials, it is impossible to increase the steam temperature infinitely during work, so high vacuum and low cooling water temperature are the two main factors to improve efficiency (cryogenic pump can be used to reduce water temperature).

2. What are the characteristics of RE-5299 2L rotary evaporator compared with other evaporators?

All rotary evaporators have a built-in lift motor that automatically lifts the flask to the top of the heating pot in the event of a power outage. The material rotates under vacuum conditions, forming a layer of liquid film in the evaporating flask, which has a large heating area. The rotation effectively suppresses the boiling of the material. Due to its features and convenience, the rotary evaporator can be used for quick distillation and extraction, even for operators with no operating experience.

3. Question: What is the basis for the design of the lifting of the host and the lifting of the water bath?

Answer: Based on the principles of convenience, safety and economy, in the world, generally small machines (below 5L) lift the main machine, and lift the water bath above 5L.

4. Question: How to choose various types of rotary evaporators?

Answer: As far as the structure is concerned, the R series rotary evaporators produced by our factory have good corrosion resistance and sealing performance. 2L, 3L, 5L machines are suitable for laboratories and small sample tests; 5L, 10L, 20L are suitable for pilot tests; 20L, 50L are suitable for pilot tests and production, especially for the extraction of materials that need to avoid metal ion contamination.

5. Question: How to choose a vacuum pump for a rotary evaporator?

Answer: We recommend a water circulation pump, which has the advantage of being resistant to various solvents and can be vacuumed to -0.095MPa (to meet the requirements of use). The vacuum pump can be selected according to the volume of the evaporator