Combines storage and transportation in one unit, eliminating the need for separate equipment. The self-pressurization system allows single-person operation, significantly reducing labor costs and improving workflow efficiency. Ideal for both on-site storage and short-distance transport of liquid nitrogen.
The high-vacuum insulation layer and stainless steel construction effectively minimize daily liquid nitrogen evaporation loss to just 2.20%. This extends the storage duration of cryogenic media and reduces the frequency of refills, lowering operational costs for long-term use.
Equipped with braking casters at the bottom, the tank offers flexible and stable movement within laboratories, workshops, or production facilities. Its compact design (455×1140MM) fits into limited spaces while maintaining a 50L capacity, balancing portability and storage capacity for diverse application scenarios.
| Application Fields
Biomedical & Life Sciences
Used for long-term preservation of vaccines, cells, bacteria, viruses, animal organs, human stem cells, blood, and skin samples. The -196°C deep low-temperature environment maintains biological activity, allowing samples to be thawed and reused when needed. Essential for research institutions, hospitals, and biotech companies.
Industrial Manufacturing
In metal manufacturing and precision machining, the tank provides liquid nitrogen for deep cryogenic treatment of metal materials. This process improves metallurgical structure, increasing hardness, strength, and wear resistance of components. It also enables slight dimensional adjustments of precision parts, facilitating interference fit assembly and enhancing final product performance.
Animal Husbandry & Breeding
Supports long-term active preservation and long-distance transport of semen from valuable breeding stock (cattle, sheep) and rare animals. Delivers reliable cryogenic conditions for artificial insemination programs, contributing to improved breeding efficiency and genetic diversity.
Laboratory & Research Equipment
Serves as a stable cold source for laboratory devices such as freeze dryers. Automatically and efficiently replenishes liquid nitrogen for other storage or transport tanks, solving the inefficiency of manual refilling. Widely used in semiconductor research, low-temperature chemical experiments, and material science studies.
| Operation & Safety Guidelines
Pre-Operation Preparation
Tank Inspection: Check the shell for dents or cracks; ensure the vacuum exhaust port is intact. Verify the interior is clean, dry, and free of foreign objects.
Accessory Check: Confirm lifting baskets and canes are not deformed; ensure level gauges (if equipped) have clear markings.
Pre-Cooling: For new or long-unused tanks, slowly inject 1/10 of the total capacity of liquid nitrogen for pre-cooling. Wait until boiling subsides and liquid stabilizes before full filling.
Safe Filling Procedures
Wear cryogenic-resistant gloves (cotton gloves prohibited), safety goggles/face shield, a long-sleeved lab coat, and pants covering ankles.
Operate in a well-ventilated area to avoid oxygen deficiency from nitrogen gas accumulation.
Use a dedicated funnel or transfer tube to inject liquid nitrogen slowly along the inner wall, preventing splashing.
Do not fill beyond 80%-90% of total capacity to allow space for liquid expansion and gas evaporation.
Sample Access & Maintenance
Keep the lid open for ≤30 seconds per access to minimize nitrogen loss and temperature rise.
Use baskets to raise/lower samples steadily; avoid collisions with the neck tube. Allow residual liquid nitrogen to drip off after removal.
Wipe the exterior with a dry, soft cloth. For long-term storage, empty the tank, let it warm to room temperature, rinse the inner liner with 40-50°C warm water, and air dry completely.
Conduct monthly inspections of the neck plug seal and accessories; log nitrogen usage and address outer shell frost promptly.
| Production Process
The YDZ-50 is manufactured through a rigorous, precision-focused production process to ensure reliability and performance:
Material Selection: High-quality austenitic stainless steel is sourced for the inner and outer tanks, ensuring corrosion resistance and thermal stability.
Structural Fabrication: The inner tank is formed with precision welding to maintain vacuum integrity; the outer shell is engineered for mechanical strength and durability.
Insulation Layer Installation: A multilayer insulation system is applied between the inner and outer tanks, followed by high-vacuum pumping to achieve superior thermal insulation.
Component Assembly: Pressure gauges, safety valves, vent valves, and booster coils are installed and calibrated to meet strict performance standards.
Quality Testing: Each tank undergoes pressure testing, vacuum tightness testing, and evaporation rate testing to ensure compliance with industry regulations.
Final Inspection: A comprehensive check of all functions, including self-pressurization, liquid discharge, and safety alarms, before packaging and delivery.
| FAQ
Will the YDZ-50 Liquid Nitrogen Tank explode?
Liquid nitrogen itself is non-flammable and non-explosive. However, if the tank is hermetically sealed or the pressure relief valve fails, vaporized liquid nitrogen expands 700× its original volume, causing pressure buildup and potential rupture. Always use certified containers with functional pressure relief devices and never seal the tank mouth.
What are the risks of liquid nitrogen contact, and how to protect against them?
Liquid nitrogen’s -196°C temperature causes severe cold burns or frostbite on skin contact. Always wear proper PPE: cryogenic-resistant gloves, safety goggles/face shield, long-sleeved lab coat, and ankle-covering pants. Avoid direct contact with skin or eyes.
How often should liquid nitrogen be replenished?
Replenishment frequency depends on usage and storage conditions. Monitor the liquid level regularly using a dipstick or weighing method. Replenish when the level falls below 30% or before stored samples are exposed. The 2.20% daily evaporation rate ensures extended usage between refills.
Can the YDZ-50 be used for long-distance transport?
Yes, the tank integrates transport functionality with a robust structure and braking casters. Ensure the tank is secured upright during transport; avoid severe vibrations or impacts. Check pressure and liquid level before and after transport to maintain safety.
| Call to Action
Ready to enhance your cryogenic storage and supply efficiency with the YDZ-50 Self-Pressurized Liquid Nitrogen Tank? With its reliable performance, intelligent monitoring, and versatile applications, it’s the ideal solution for biomedical research, industrial manufacturing, and laboratory use. We currently have 1000 units in stock—inquire now for a customized quote or add to basket to secure your order. Our team of experts is available to answer technical questions and provide after-sales support. Invest in the YDZ-50 for safe, efficient, and cost-effective cryogenic management—your trusted partner for low-temperature solutions.
yongy0223@gmail.com 
+86-17693104145
Lanzhou New Area, Lanzhou City, Gansu Province, on the second floor to the east of New Harbor Road, to the east of Building Materials Road No. 2, to the west of Qilian Mountain Avenue (Jingqi Road)
