Introduction to the scope of application of the freeze grinder

      Once the sample is immersed in liquid nitrogen for cooling, it will quickly become brittle and thus more easily comminuted, with pulverization times rarely exceeding a few minutes. The key to the freezer is that the structure and composition information in some samples can be effectively retained at low temperatures. These samples include polymers, rubbers, textile materials, grain granules, hair, nails, skin, bones, muscle tissue, and the like. Low temperature pulverization has become an important pretreatment method in chemical analysis. Many analytical samples that are too soft or sensitive at room temperature are susceptible to cracking into multiple forms during conventional comminution. Therefore, cooling technology has become a key means of preserving sample integrity. Once the sample is immersed in liquid nitrogen for cooling, it will quickly become brittle and thus more easily comminuted, with pulverization times rarely exceeding a few minutes. The key is that at low temperatures, structural and compositional information in some samples can be effectively retained.

After the sample is placed in a closed grinding container, it is immersed in liquid nitrogen, and the electromagnetically driven steel smasher impacts the sample to achieve high kinetic energy and large-area collision, and the sample is quickly and thoroughly pulverized. Compared with the traditional ball milling maneuver, the grinding speed is faster and the grinding result is finer. During the process, because the sample is always at the liquid nitrogen temperature, the sample becomes brittle at low temperatures, making some samples that are difficult to grind at room temperature more likely to be ground into powder by impact. It is specialized in the rapid preparation of small quantities of samples in the laboratory. It is suitable not only for fine pulverization and fine grinding of hard, medium-hard, brittle, soft, elastic and fibrous materials, but also for small samples for rapid dry grinding, wet grinding or freeze grinding. In addition, the freeze grinder is also particularly suitable for biological cell wall breaking and DNA/RNA extraction. With its superior performance and high flexibility, it has become an indispensable instrument in the laboratory. The freezer has both dry and wet grinding capabilities for heat sensitive materials and biological applications for plant, animal, bacterial and yeast samples. Designed with international method, low noise, easy to use, stable performance The grinding process of the sample is always at low temperature, so it can be used in heat sensitive materials and biological applications, and can be soft on textiles, PCB boards, paper, soil, etc. And the medium hard sample was subjected to conventional pulverization.