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A condenser is usually used to distil a liquid, which ACTS as a condensation or reflux. Its use range: the temperature of the steam is greater than 140 degrees Celsius, with the air condenser, the temperature is less than 140 degrees Celsius, with the straight condenser. Condenser is usually used in desire under reflux conditions do experiments on the flask, or you would like to collect the cooling of a liquid bottle, after steam condensation occurred, tube on the inner wall of inside and outside the tube around the space for the line of the water vapor heat and the function of the heat removed, usually have high water pressure, water inlet place in order to prevent water loss, plastic tube to tube bundle tied tightly, when used under reflux condition, the lower end of the condenser pipe glass tube to insert a rubber plug, so as to cram flask mouth, and undertake the flasks evaporating steam up. Keda rotary evaporation instrument manufacturer specializing in the production of circulating water pump, glass reaction kettle, magnetic stirrer, drum wind drying oven, vacuum drying oven, microwave chemical reactor, high pressure reaction kettle, electric heating, low temperature cooling liquid circulating pump, high and low temperature machine, low temperature constant temperature bath, lab lifting platform, freeze drying machines and other laboratory instruments and equipment.

Holiday Notice of Spring Festival

ZZKD provides industry-leading products from worldwide laboratory equipment manufacturers , serving markets throughout USA , UK , Greece , Poland , Australia , Brazil outh Africa , Ghana , Egypt , Iran , Pakistan , Thailand , India , Malaysia , Singapore etc We have been providing equipment solutions for the scientific . medical and industrial communities for over 30 years . Over this time we have developed the expertise to help you decide which apparatus is the best suited to your requirements Zhengzhou Keda Machinery and Instrument Equipment Co Ltd , established in 1981 . is a famous manufacturer of lab equipments located in the central China The main products are rotary evaporator , glass reactor drying oven , circulating water vacuum pump , refrigerated circulators , freeze dryer , high temperature circulating water / oil bath , high pressure stirred autoclave and so on . Our company has bacome a pacesetter of the lab instruments in China Welcome to contact

Rotary evaporation Rotary evaporation instrument is biological pharmaceutical industry, chemical industry, food industry such as scientific research, test and production equipment, for rapid liquid samples concentration, crystallization, drying, separation and solvent recovery. Rotary evaporation instrument, is under the condition of vacuum, through constant temperature heating, keep rotating bottle? In a rotating speed, the material is on the bottle in a large area of thin film formation, efficient evaporation. What are the effects of the evaporation of the rotary evaporator? Different types, different types of rotary evaporation, evaporation effect is also different, furthermore, method of evaporation, evaporation time, the rate of evaporation, evaporation of the medium will be affect the rotation effect factors of pan evaporation. The evaporation method of rotating evaporator is different, evaporation time is different, evaporation time will be different with the method of evaporation; The speed of evaporation is related to the rotor speed and the radius of rotation.The above information provided by the rotary evaporation apparatus manufacturer, rotary evaporation instrument manufacturer specializing in the production of circulating water pump, drum wind drying oven, vacuum oven, glass reaction kettle, electric, magnetic stirrer, microwave chemical reactor and ultraviolet analyzer, such as chemical laboratory instruments and equipment.

The exhibition, as a concept, is defined as "public display of industrial and agricultural products, handicraft products, and artistic works in a fixed or itinerant way. Products, books, pictures, and various important objects, specimens, models, etc. for the masses to visit and enjoy a temporary organization. This definition does not seem to be accurate and worth exploring. In terms of trade shows, there is an American businessman who has made the definition: in the shortest time, in the smallest space, with the least cost to make the biggest business. But this so-called definition is more like a description. The author attempts to define a social form that achieves product, service, and information exchange in a fixed or a series of locations, specific dates and deadlines. The information contained in a lot of content, achievement than propaganda, propaganda policy, popularize knowledge of science and technology, set up the company image, understand the market development trend, even by unfair means to get information, etc.

Our service Pre-service 24 Hours online service for your consult. Help choose right model,and a series of service,person,advise. Middle service --Give you best offer --Provide discount for many sets order --Do customer's request: --Choose payment term you convienent. --Promptly production and delivery,inform you in time. --Can provide invoice value as you like to decrease your tax. After sale service --1 year warranty service and all life maintenance. --Technical Egineer are avalible for oversea trainning. --Free change for some parts --Remote control technical consult --Free installation DVD --Maintenance plan Good Packaging All products are covered with air bubble film before put them into the wooden case, which not only has good shock absorption, impact resistance, heat sealing and also has the advantages of nontoxic, odorless, moisture corrosion, good transparency etc.

Pre-service 24 Hours online service for your consult. Help choose right model,and a series of service,person,advise. Middle service --Give you best offer --Provide discount for many sets order --Do customer's request: --Choose payment term you convienent. --Promptly production and delivery,inform you in time. --Can provide invoice value as you like to decrease your tax. After sale service --1 year warranty service and all life maintenance. --Technical Egineer are avalible for oversea trainning. --Free change for some parts --Remote control technical consult --Free installation DVD --Maintenance plan Good Packaging All products are covered with air bubble film before put them into the wooden case, which not only has good shock absorption, impact resistance, heat sealing and also has the advantages of nontoxic, odorless, moisture corrosion, good transparency etc.

What faults are most likely to occur in the glass reactor? According to the feedback from users, the glass reaction kettle manufacturer zhengzhou keda summarized the following points: 1. The power indicator is not bright; 2. Short circuit of insurance tube; 3. No vacuum; There is a vacuum. 5. Rotation axis does not rotate; 6. Vacuum hose aging; 7. The main spindle is loose; The temperature of the motor is too high. The above is the most vulnerable fault of the glass reaction kettle. The troubleshooting method is as follows: 1. Check the power and socket to see whether the external power supply is not connected or the contact is not good; 2. Turn off the power switch and replace the insurance pipe; 3. Check the glass parts and switches, which are damaged and replaced; 4. The sealing ring is worn out and the sealing ring is changed. The switch has a problem, switch the switch; 5. The rotation axis is rusted, contacting the manufacturer in time to stop the use of the glass reaction kettle; Change a new vacuum hose; 7. Tighten screws; 8. Remove the dirt from the glass shaft and the sealing ring, apply the vacuum grease, and reduce the load of the motor; The fault of the glass reactor is easy to occur and the method of elimination is corresponding. The glass reaction kettle manufacturer also produces the circulating water vacuum pump and rotary evaporator.

On the afternoon of November 8, 2017, the sky was clear and clear, and the weather was fine. The company decided to hold a 10-kilometer directional hiking activity. The hikers were marching along the tarmac.The employees were chatting, singing and walking together, slowly opening the stiff limbs at their desks.Although the afternoon sun is too bright and tired, but from time to time the clouds bring cool, the pace of advance is more powerful. Finally, after 1.5 hours of trekking, all members of the company arrived at the finish line, and there was a loud applause from the audience, both for the team-mates and for their own applause.After reaching the end of the road, they passed a short stay and made a great stride.Back of the road is still the same scenery, several players some tired, but in everyone's encouragement determined covered the entire, with practical action to show beyond willpower, have the courage to challenge the fighting spirit and the division of an elite spirits!

Short path distillation is a distillation technique that involves the distillate travelling a short distance, often only a few centimeters, and is normally done at reduced pressure. A classic example would be a distillation involving the distillate travelling from one glass bulb to another, without the need for a condenser separating the two chambers. This technique is often used for compounds which are unstable at high temperatures or to purify small amounts of compound. 2liters 5liters 10Liters 20Liters