Miniature liquid nitrogen machine: the core support for laboratory sperm and specimen freezing:
In life science research, long-term preservation of sperm and biological specimens is crucial for genetic resource protection, medical research, and species breeding. As an ultra-low temperature medium at -196℃, liquid nitrogen can maximize the inhibition of biological activity and reduce cell damage. With the characteristics of on-site nitrogen generation and flexible regulation, small liquid nitrogen generators have become indispensable key equipment in laboratories.
Its core applications are reflected in two major scenarios:
- Sperm cryopreservation: Step-by-step freezing of sperm is achieved through precise temperature control. Combined with capillary tube packaging technology, it ensures sperm motility and fertilization ability after thawing. In livestock breeding, wildlife protection, and assisted reproductive research, the continuous liquid nitrogen supply provided by small liquid nitrogen generators solves problems such as delayed transportation and volatilization loss of purchased liquid nitrogen, ensuring the stability of sample preservation.
- Biological specimen cryopreservation: From cells, tissues to nucleic acid samples, small liquid nitrogen generators produce high-purity liquid nitrogen (≥99.5%) through pressure swing adsorption (PSA) nitrogen generation technology. Equipped with vacuum insulated storage tanks, they effectively prevent specimen degradation caused by temperature fluctuations, providing reliable sample support for pathological research and drug development.
Core Advantages of Jiangsu Minnuo Group’s Small Liquid Nitrogen Generator
As a professional manufacturer in the low-temperature equipment field, Jiangsu Minnuo Group’s small liquid nitrogen generators demonstrate six core advantages in laboratory scenarios relying on core technologies and strict quality control:
1. High-reliability refrigeration system for long-term stable operation
Adopting internationally certified hybrid pulse tube refrigerators with dual CE and UL certifications, the actual service life exceeds 100,000 hours. Compared with the hidden danger of “damage in 3-5 years” of self-made refrigerators in the industry, Minnuo products provide a 3-5 year whole-machine warranty commitment, completely avoiding post-maintenance risks and adapting to the 24-hour continuous nitrogen generation needs of laboratories.
2. Strong room temperature adaptability, not limited by environment
Breaking through the “low-temperature limitation” trap, the equipment can operate stably in a conventional laboratory environment of 30-32℃. It adopts an efficient water-cooled condensation system instead of ordinary air-cooled devices, and will not shut down even if the room temperature exceeds the standard in summer, solving the core pain point of “environmental sensitivity” of traditional equipment.
3. Actual output up to standard to meet sample preservation needs
Firmly eliminating the problem of “false nominal output”, each equipment provides a third-party actual output test report. Taking the mainstream model as an example, the measured output of the equipment with a nominal 10L/day is not less than 9.8L. Equipped with a large-capacity Dewar tank of 35L or more, the liquid nitrogen volatilization rate is less than 5% per day in standby mode, ensuring continuous liquid supply for sample freezing.
4. High-purity nitrogen output to improve sample preservation quality
Equipped with an independently developed PSA pressure swing adsorption nitrogen generator, the nitrogen purity is stable at 99.7%-99.95%, far exceeding the 98% upper limit of membrane nitrogen generation technology. The built-in nitrogen analyzer module monitors purity in real time, avoiding the decline of sperm activity or specimen deterioration caused by impure nitrogen, and meeting high-specification experimental requirements.
5. Intelligent and convenient design to lower the operation threshold
Adopting a 10-inch color touch screen, it supports one-key startup, automatic start-stop and intelligent liquid level control, without the need for professional on-site monitoring. Standard WiFi and 4G IoT functions enable remote monitoring of liquid nitrogen level, equipment status and fault diagnosis. Combined with the “liquid collection without shutdown” design, it greatly improves laboratory work efficiency.
6. Low-consumption and long-term operation to control comprehensive costs
Built-in GAST oil-free air compressor with a maintenance cycle of up to 15,000 hours, far exceeding the industry average of 4,000 hours; the PSA nitrogen generator uses ultra-high-purity carbon molecular sieves with a service life of 8-10 years. The equipment operates at a noise level below 60 decibels, meeting laboratory mute standards, and is equipped with an automatic standby energy-saving mode, reducing annual power consumption by more than 15% compared with similar products.
Jiangsu Minnuo Group – Professional Provider of Laboratory Low-Temperature Solutions
For specific model parameters or customized needs, please visit the official website for more information.
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