Automatic liquid level filling and topping up for convenience and efficiency; whole process low-temperature grinding and crushing at -196℃.

The Jinxin fully automatic immersion liquid nitrogen freezing mill boasts powerful functionality and is the world's leading liquid nitrogen freezing grinding equipment. It operates at ultra-low temperatures throughout, recognized as a highly efficient grinding unit in the market. The control system and main unit are integrated, with automatic liquid level filling and replenishment for added convenience and efficiency. It can handle samples that are difficult to process with conventional methods, such as: plastic, rubber, resin, leather, hair, bone, wood, and textile materials.

The fully automatic immersion liquid nitrogen cryogenic mill is widely applicable in fields such as RNA/DNA detection in biochemical analysis, polymer structure analysis, trace element identification, food analysis, mineral research, assistance in medical surgical operations, drug property testing, and textile composition identification.

Grinding Principle:Dual-magnet coil-driven electromagnetic impact oscillator abrasive technology; samples are kept at liquid nitrogen temperature (-196℃) throughout the grinding process in a fully enclosed and frozen grinding environment. The impact oscillator撞击 samples to achieve high-energy, large-area impacts, rapidly and thoroughly粉碎ing the samples.

Advantages and Features of Fully Automatic Immersion Liquid Nitrogen Cryogenic Milling Equipment:

1. Cylinder-shaped impactors, no pre-treatment required for samples, uniform and consistent sample treatment, good reproducibility

2. User-friendly Design: 7-inch touch screen, capable of writing and storing 20 sets of programs.

3. Grinding at low temperatures preserves the biological material's activity, ensures the retention of volatile substances, prevents the thermal degradation of heat-sensitive compounds, and maintains the original sensitive characteristics of metabolites, isomers, and complex compounds that are sensitive to heat and mechanical pressure.

4. Reproducibility: Allows for setting parameters such as grinding time, cycle duration, pre-cooling time, and punch movement frequency, enabling precise grinding conditions down to the second for samples, ensuring reproducibility and consistency.

5. Equipped with an automatic liquid nitrogen level control system, it automatically refills and replenishes the liquid during operation.

6. Certified with CE (European Standard Quality) and ISO 9001.

7. Throughout the grinding process, the samples remain in an independent, sealed, and ultra-low temperature state, preserving their integrity and preventing cross-contamination between samples. This ensures control over hazardous and critical samples.

Typical Applications:

1. Nucleic acid/protein extraction:

Grind various animal tissues (including bones, teeth, hair, muscles, and various organs) and plant tissues (roots, stems, leaves, fruits, seeds, etc.) at liquid nitrogen temperatures, effectively inhibiting nucleic acid degradation and preserving the biological activity of enzymes. This is used for the pretreatment of extracting nucleic acid proteins from animal and plant tissue cells.

2. Pre-treatment of special samples

For volatile substances like coal, oil shale, wax products, and many other organic materials with low molecular weight compounds, their matrix can quickly volatilize when milled at room temperature. Using an ultra-low temperature cryogenic mill, as the entire sample process is contained within a sealed sample vial and milled at liquid nitrogen temperatures, it ensures the retention of volatile compounds. Subsequent enrichment analysis can then be performed through gas sweeping.

3. Pharmaceutical Analysis and Drug Testing

Ultra-low temperature cryogenic grinding preserves the biological properties of sensitive substances like metabolites, isomers, and complex compounds that are sensitive to heat and mechanical pressure. The complex molecules in drugs and their metabolites are crucial for pharmaceutical research or criminological experiments.

4. Plastic/Polymer Composition Analysis

It's challenging to grind plastics, resins, textiles, and polymers at room temperature, but it becomes extremely easy under ultra-low temperatures. Additionally, it can prevent the temperature rise caused by friction during grinding from affecting the molecular structure and composition information of the sample.

5. Medical Research Knife

Super-low temperature cryogenic grinding is beginning to gain widespread application in medical research.

6. Heavy metal testing

As requirements for heavy metal content in environmental and safety aspects increase globally, the detection of heavy metals has become crucial. For difficult-to-process samples such as food packaging materials, clothing, children's toys, leather, rubber, and circuit boards, using a cryogenic mill for rapid and pollution-free processing can significantly enhance the efficiency of analysis and testing. It has wide applications in commodity inspection and forensic identification fields.

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