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With the rapid development of science and technology, DNA detection and polymer analysis are becoming more and more important. In order to maintain the original components and biological information of samples, it is necessary to adopt low-temperature pulverization. CryoGrinder LM200 chills the sample in liquid nitrogen and pulverize them with a magnetically driven impactor. The sample become brittle and the volatile components are preserved under the low temperature, so that a good grinding effect can be achieved.
The automatic control function of liquid nitrogen content avoids the contact and danger of manual operation.
Application
It is applied to samples with strong toughness and thermal sensitivity that are difficult to be ground and crushed at room temperature, such as rubber, plastic, food, mineral, animal and plant tissue analysis, drug, biochemical DNA detection, cell disruption and other fields.
Typical sample
polymers, rubber, textile materials, grain particles, hair, nails, skin, bones, muscle tissue, etc.
Working Principle
Size reduction is taken place by electromagnetic oscillation impact. The sample and the metal impactor are loaded into the grinding jar together. The grinding jar is sealed with plug head by the two ends and put into the electromagnetic vibration drum coil. Electromagnetic coil with grinding jar immersed in liquid nitrogen to be pr-cooled. The whole grinding process is carried out in liquid nitrogen (-196 ºC). The magnetic force generated by the coil drives the impactor to move horizontally, thus continuously impact on then grind the sample that has been frozen and embrittled.
Features and advantages
○Electromagnetic vibration impact guarantees fast grinding speed, high precision, good uniformity and repeatability;
○The liquid nitrogen automatic filling system automatically supplement the liquid nitrogen consumed in the process of sample freezing and grinding to ensure the stability and safety;
○Industrial touch screen control panel, impact frequency, pre-cooling time, impact grinding time, cycle grinding times can be set, easy to operate and reliable;
○Safety design: when the cover of the instrument is open, the instrument cannot be started; Only when the instrument cover is closed and locked can the instrument be started;
○Streamlined and ergonomic design, simple and convenient operation;
○When the liquid nitrogen level is lower than the set value, the liquid sensor will alarm and automatically replenish the liquid nitrogen; and the instrument stops running to protect the electromagnetic coil from damage.
Various specifications of grinding jar and impactor, suitable for a wider range of applications
○ Provide different size grinding jars, satisfy the requirement of hard, medium hard, soft, brittle, elasticfiber samples grinding.
○ To achieve better grinding effect, the appropriate size of grinding jar should be selected according tothe amount of the grinding sample. lt is suggested that the sample filing amount should be 5%-25% ofthe volume of the grinding jar (depending on different sample characteristics).
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single grinding time |
2min |
Liquid nitrogen filling system |
Manual/automatic optional |
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The shortest pre-cooling time |
4.5min |
lmpact frequency |
5-15Hz |
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Batch capacity |
0.1-100g |
Rated power/power supply |
1.9KW/220V,50/60Hz |
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pre-cooling chamber |
400ml |
lnstrument size |
510*440*450mm |
| Grinding chamber |
200ml |
package size |
870*720*750mm |
| Grinding jars |
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*Information on this site is provided for information purposes only and the contents hereof are subject to change without notice.
Beijing Grinder Instrument Co.,Ltd. is a high-tech enterprise and a professional laboratory manufacturer. The production base is located in Yanjiao Baishijingu Industrial Park, Hebei P.R.C China.
Since the foundation of POWTEQ, we are doing our best to research and develop the grinding instruments with high quality. Our main products are including Jaw Crusher, Disc Mill, Cutting Mill, Mortar Grinder, Planetary Ball Mill, Micro Ball Mill, High Speed Rotary Mill and Knife Mill etc. All of them can meet different grinding requirements for laboratory sample testing. Our products are used in the fields of education, scientific research, metallurgy, biological, medicine, building materials, electronic manufacturing, energy saving and environmental protection, and have a good reputation in the sample preparation field.
Most professional , most perfect and most suitable sample preparation solution
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Application Consulting
POWTEQ company meet the requirements of customers for sample preparation instrument, provide professional technical consulting for different samples, help you to find the perfect solution.
Technical Service
POWTEQ's high-quality instrument,is with smooth performance ,long service life, easy installation and maintenance. If you have any questions,please feel free to contact with us.
Technical Seminar
POWTEQ company holds several technical seminars aimed at different industry in different place every year, provides the customer with the latest information on the products, sample preparation technology.
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POWTEQ And EVERFUGE At Analytica 2024
POWTEQ and EVERFUGE are exploring international market actively and doing our best to research and develop laboratory mill and centrifuges with high quality. We have attended the Analytica 2024 in Munich to present our innovative instruments.
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