Magnetic stirrer and overhead stirrer are the most common pretreatment instruments in laboratories. As the saying goes, weapons to take while the hand of the —— mixer selection generally consider from three aspects: mixing purpose, material viscosity, mixing container volume size. Very not easy to pass a selection pass, get the hand in the process of use is still more or less will encounter a lot of application problems.

This issue specially brings you the choice and application of common mixer, full of dry goods, be sure to read carefully!

 

1. Magnetic Stirrer


INNOTEG WM-1 Magnetic Stirrer

Heated magnetic mixer is mainly used for stirring or simultaneously heating stirring low viscosity liquid or solid-liquid mixture. Its basic principle is to use the principle of magnetic field, magnetic field absorption, using magnetic field placed in the container with magnetic mixing particles to run around, so as to achieve the purpose of stirring liquid. Then the problem is the ——

Q1-Can the INNOTEG magnetic stirrer run for 24 hours?

A: Yes, the instrument does not specify the maximum running time.

Q2-We are doing organic synthesis experiments, the long-time reaction is unattended, after the reaction needs to automatically stop heating, but still keep stirring, can it be achieved?

A: It can implement the timer endpoint function; the customer can decide after the reaction (the timer reaches 00:00:00 at 0:00).

Q3-The magnetic stirrer is set to run without stirring, how to do?

A: no stirring is generally caused by voltage instability or the viscosity of the reaction liquid is too large. It is recommended to pay attention to the viscosity change of the reaction liquid in the process of use, and the overhead mixer can also be used when the magnetic mixer is not stirred.

Q4-How to disinfect the magnetic stirrer?

A: Magnetic stirrers are available in a variety of materials, and magnetic stirrers coated with polytetrafluoroethylene (Teflon) can be sterilized in a variety of ways: for example, they can be treated with autoclave or alcohol or fungicide.

Q5-What are the environmental conditions required for the operation of the INNOTEG magnetic stirrer?

A: The relative humidity should not exceed 80%. The ambient temperature shall be between + 5℃ and + 40℃. Good ambient temperature helps with the longevity of magnetic stirrers


INNOTEG MR-5 Magnetic Stirrer

 

2. Overhead Stirrer

The overhead agitator is mainly used in the circulation of mixing, homogenization, suspension, gas injection and high viscosity substances. Through the acceleration, transfer of the taical tail, and the delay of strong flow, these flows produce new mixing motion through the rotating medium, achieving the purpose of homogenization, mixing and stirring. So take the following questions, do you know the answer?

Q1-Can solid powder?

A: in the food industry, often need to mix solid powder, choose the powerful torque Tor M 80 A overhead mixer set, with spiral mixing propeller, large enough torque can be evenly stirred, at low speed 150rpm can be very good guarantee powder samples in circulating flow state, keep the solid powder in mixed flow state to ensure the sampling.

Q2-What should be noted for the installation of the overhead agitator mixing propeller?

A: The imbalance of the output shaft and the drill clamp, especially the mixing propeller, can lead to the resonance of the instrument and the whole device and thus lead to the crushing of the glass appliance and the mixing container. This can cause damage to the operator or damage the mixing paddle. In this case, the mixing propeller needs to be replaced to correct the resulting imbalance present.

Q3-Is the top level of protection high?

A: Tor M 80 A Overhead Stirrer shell is made of cast aluminum coating, which provides good sealing and protection level up to IP 54.

INNOTEG Science One in the pharmaceutical, biology, environmental analysis, food, paint and other industry users to efficiently complete the rigorous mixing task, but also provides convenient operation mode, high quality products and high-grade safety protection.

 

Technical parameter:

● Chemical corrosion resistance and heat conduction efficiency are cleverly combined: square heating surface plate, enamel coated aluminum alloy material;

● Rapid heating; excellent heating power: 850W;

● Speed range: 50-1500rpm, disk temperature range: room temperature-310℃;

● Can display the viscosity change trend in real time, easy to observe the experimental process;

● Accurate temperature control: a variety of external temperature sensors are optional, the most precise temperature control precision up to ± 0.2℃;

● Can set the intermittent operation mode, flexibly control the mixing interval time, efficient crystallization and other special mixing applications;

● Integrated timing / timing function, to achieve unattended, safe operation!


Tor M80 A Overhead Stirrer

● Speed range: 50-500rpm, using the knob can easily adjust the setting parameters, the operation process runs smoothly;

● The instrument is small and light, very easy to install and move;

● Maximum viscosity: 60000 mPas; maximum torque of mixing shaft: 80 Ncm.


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