Liquid Nitrogen Dewar
Banagee – Premier Manufacturer of Liquid Nitrogen Dewars in China
For laboratories and research facilities requiring dependable cryogenic solutions, Banagee offers high-performance liquid nitrogen dewars designed to maintain optimal sample integrity. Our range includes everything from compact small liquid nitrogen dewars to industrial-scale 230 liter liquid nitrogen dewars, all manufactured with precision engineering.
Banagee is a professional liquid nitrogen dewar manufacturer based in China, specializing in wholesale and customized production of high-performance cryogenic storage solutions. Equipped with a modern production facility, cutting-edge manufacturing technology, and extensive industry expertise, we deliver tailored liquid nitrogen dewar solutions to meet your exact requirements.
We are dedicated to helping you achieve optimal efficiency, safety, and cost savings with our premium products. For customization inquiries, don’t hesitate to reach out!
Why Choose Banagee?
- Extensive Product Range – Diverse styles and capacities for various applications.
- Innovative Design & Superior Quality – Engineered for maximum durability and thermal efficiency.
- Competitive Pricing – Cost-effective solutions to enhance your market competitiveness.
- Global Wholesale Distribution – Efficient logistics network for seamless worldwide delivery.
1. Introduction to Liquid Nitrogen Dewars
What Is A Liquid Nitrogen Dewar?
A liquid nitrogen dewar is a specialized cryogenic storage vessel designed to safely contain and preserve liquid nitrogen at its ultra-low temperature of -196°C (-321°F). These essential scientific containers, sometimes referred to as LN2 dewars or cryogenic storage tanks, serve as the backbone for countless laboratory, medical, and industrial applications where precise temperature control is critical.
Unlike ordinary storage containers, a high-quality liquid nitrogen dewar features advanced vacuum insulation technology that dramatically reduces heat transfer and minimizes nitrogen evaporation. From compact 2-liter models perfect for small research labs to large 50-liter industrial dewars used in food processing plants, these vessels come in various sizes to meet different storage requirements. Whether you're preserving biological samples, storing vaccines, or conducting materials research, understanding liquid nitrogen dewars is fundamental to successful cryogenic work.
Key Components of a Liquid Nitrogen Dewar
The exceptional performance of a liquid nitrogen dewar stems from its carefully engineered components working in perfect harmony. At its core, every reliable dewar features a double-walled construction made from premium stainless steel - the outer shell providing durable protection while the inner chamber safely contains the liquid nitrogen. Between these walls lies the secret to its insulation: a vacuum-sealed space that virtually eliminates heat transfer through conduction or convection.
Modern liquid nitrogen dewars incorporate several critical elements that enhance their functionality and safety. The neck tube, often constructed from materials with exceptionally low thermal conductivity, serves as the passageway for filling and accessing the contents while minimizing heat infiltration. Pressure relief valves act as crucial safety mechanisms, allowing excess gas to escape without building dangerous pressure. Many contemporary models also include convenient features like integrated level gauges and ergonomic carrying handles, making these dewars safer and more user-friendly in busy laboratory environments.
How Does A Liquid Nitrogen Dewar Work?
The science behind liquid nitrogen dewars is both elegant and effective. When filled with LN2, the vacuum insulation system immediately begins working to maintain the ultra-cold temperature. This vacuum space, often supplemented with multiple layers of reflective material (superinsulation), creates an incredibly efficient thermal barrier that prevents ambient heat from reaching the stored liquid nitrogen.
An interesting natural phenomenon occurs during normal operation - as the liquid nitrogen gradually evaporates, the resulting cold vapor forms a protective blanket in the neck of the dewar. This self-generated cooling effect actually helps maintain the low temperature inside the container. It's this sophisticated design that allows quality liquid nitrogen dewars to preserve their contents for weeks or even months with proper handling and maintenance.
Several factors influence a liquid nitrogen dewar's performance and efficiency. The frequency of opening the container, ambient temperature conditions, quality of insulation, and overall size all play significant roles in determining evaporation rates and storage duration. Understanding these operational principles helps users select the most appropriate dewar for their specific needs and use it to its maximum potential in cryogenic applications.
2. Our Liquid Nitrogen Dewar Product Line
Whether you're outfitting a small research lab or an industrial facility, our comprehensive range of liquid nitrogen dewars offers the perfect storage solution for every need. From compact portable units to high-capacity industrial models, each dewar in our product line combines cutting-edge insulation technology with rugged durability.
Small Capacity Dewars (1L-10L)
Designed for maximum portability and convenience, our small liquid nitrogen dewars are ideal for individual researchers and small laboratories where space is at a premium. These lightweight yet robust containers make transporting and handling liquid nitrogen safer and easier than ever before.
Ideal for individual researchers and small labs, our portable liquid nitrogen dewars include:
- 1 liter liquid nitrogen dewar - Perfect for cryopreservation of small samples
- 2 liter liquid nitrogen dewar - Compact yet practical for routine lab work
- 5 liter liquid nitrogen dewar - Popular choice for IVF clinics
- 10 liter liquid nitrogen dewar - Excellent balance of portability and capacity
Mid-Range Dewars (20L-50L)
When your application demands greater capacity without sacrificing performance, our mid-range liquid nitrogen dewars deliver the perfect balance. These versatile workhorses are equally at home in core research facilities, hospital labs, and industrial settings where reliable cryogenic storage is essential.
Our medium-sized liquid nitrogen storage dewars offer:
- 20 liter liquid nitrogen dewar - Ideal for core facilities
- 30 liter liquid nitrogen dewar - Versatile for multiple applications
- 50 liter liquid nitrogen dewar - Extended holding time reduces refill frequency
Large Capacity Dewars (180L-230L)
For operations requiring substantial liquid nitrogen storage, our industrial-grade dewars provide unmatched capacity and efficiency. These heavy-duty tanks are engineered for demanding environments where continuous, high-volume availability is critical.
For high-volume applications, we offer:
- 180 liter liquid nitrogen dewar - High capacity for bulk storage
- 230 liter liquid nitrogen dewar - Maximum capacity industrial models
- Custom liquid nitrogen transport dewars for specialized needs
Beyond our standard offerings, we also provide custom liquid nitrogen transport dewars tailored to specialized requirements. Whether you need unique dimensions, special fittings, or enhanced durability features, our engineering team can develop a solution to meet your exact specifications.
3. Applications of Liquid Nitrogen Dewars
From cutting-edge medical research to large-scale industrial processes, liquid nitrogen dewars play a vital role across numerous fields where ultra-low temperature storage is required. These versatile cryogenic containers have become indispensable tools in modern science and industry.
Medical & Research Applications of Liquid Nitrogen Dewars
In the medical and scientific research fields, liquid nitrogen dewars serve as critical equipment for preserving biological materials at cryogenic temperatures. Hospitals and research facilities rely on these specialized containers for storing stem cells, vaccines, and other temperature-sensitive biological samples. The reliable temperature control provided by quality liquid nitrogen dewars makes them ideal for cryopreservation applications where maintaining sample integrity is absolutely essential.
IVF clinics particularly benefit from using medical-grade liquid nitrogen dewars to store embryos and reproductive cells. Research laboratories utilize these dewars for everything from preserving tissue samples to maintaining superconducting magnets in MRI machines. The precision temperature control and safety features of modern LN2 dewars have revolutionized how biological materials are stored in the medical and scientific communities.
Industrial Applications of Liquid Nitrogen Dewars
Beyond the laboratory, liquid nitrogen dewars find extensive use in various industrial processes that require cryogenic temperatures. Food processing plants employ large-capacity industrial liquid nitrogen dewars for flash freezing applications, helping preserve food quality and extend shelf life. The electronics industry relies on these containers for testing components and creating specialized environments for semiconductor production.
Manufacturing facilities use liquid nitrogen dewars for shrink-fitting metal parts, cryogenic grinding, and other temperature-dependent processes. The durability and reliability of industrial-grade LN2 dewars make them perfect for demanding factory environments where consistent performance is crucial. Many industrial operations have transitioned to using liquid nitrogen dewars instead of bulk storage tanks for their portability and efficiency in distributed applications.
Specialized Uses of Liquid Nitrogen Dewars
Liquid nitrogen dewars serve numerous specialized applications that might surprise those unfamiliar with cryogenic technology. Veterinary clinics use smaller LN2 dewars for animal breeding programs and genetic preservation. Universities and educational institutions incorporate these containers into their science programs, giving students hands-on experience with cryogenic technology.
Specialized liquid nitrogen dewars are also used in culinary applications for flash-freezing gourmet foods and creating innovative desserts. The art world has even found uses for these containers in preservation techniques. Whatever the specialized need, there's likely a liquid nitrogen dewar configuration that can meet the unique temperature control requirements of the application while maintaining safety and efficiency.
4. Buying Guide for Liquid Nitrogen Dewars
Choosing the right liquid nitrogen dewar requires careful consideration of several important factors to ensure you get the best cryogenic storage solution for your specific needs. Whether you're purchasing your first dewar or upgrading existing equipment, this guide will help you make an informed decision.
Selecting the Right Liquid Nitrogen Dewar Manufacturer
When evaluating liquid nitrogen dewar manufacturers, quality and reliability should be your top priorities. Look for manufacturers with extensive experience in cryogenic equipment production and a proven track record in the industry. A reputable liquid nitrogen dewar manufacturer will provide detailed product specifications including evaporation rates, holding times, and construction materials.
Consider manufacturers that specialize specifically in liquid nitrogen storage solutions rather than general laboratory equipment suppliers. These specialists typically offer better technical support and more customized solutions. Don't hesitate to ask for references or case studies demonstrating their dewars' performance in applications similar to yours. Manufacturers that offer comprehensive warranties and responsive customer service often provide better long-term value for your liquid nitrogen dewar investment.
Key Purchasing Considerations for Liquid Nitrogen Dewars
Several critical factors should guide your liquid nitrogen dewar selection process. Capacity is obviously important - consider both your current needs and potential future requirements when choosing dewar size. Pay close attention to insulation quality, as this directly affects performance; examine the evaporation rate specifications carefully to understand how long the dewar can maintain liquid nitrogen without excessive loss.
Safety features are non-negotiable when purchasing a liquid nitrogen dewar. Essential elements include pressure relief valves, secure locking mechanisms, and stable bases. Also consider practical aspects like ergonomic handles, clear level indicators, and overall portability. For laboratories with limited space, the dewar's footprint and storage requirements may be important factors in your decision-making process.
Understanding Liquid Nitrogen Dewar Pricing
Liquid nitrogen dewar prices vary significantly based on several factors. Small capacity dewars (1-10 liters) typically range from 200-800, while medium-sized laboratory models (20-50 liters) can cost 1,000-3,000. Large industrial liquid nitrogen dewars often exceed $5,000. Higher prices generally reflect better insulation technology, more durable construction, and lower evaporation rates.
When evaluating liquid nitrogen dewar prices, consider the total cost of ownership rather than just the initial purchase price. A slightly more expensive dewar with superior insulation may save money long-term through reduced liquid nitrogen consumption. Also factor in potential customization costs if you require specialized features for your particular application. Many suppliers offer volume discounts for multiple purchases, which can be worth exploring if you need several dewars.
When evaluating liquid nitrogen dewar prices, consider these factors:
- Capacity (larger dewars typically offer better value per liter)
- Insulation quality (affects long-term operating costs)
- Additional features (pressure valves, monitoring systems)
- Material grade (medical vs industrial applications)
Customization Options for Liquid Nitrogen Dewars
Many manufacturers offer valuable customization options for liquid nitrogen dewars to meet specific user requirements. Common customizations include specialized neck designs to reduce evaporation, alternative materials for specific chemical compatibility, or unique exterior finishes for easy identification. Some users opt for custom liquid nitrogen dewars with integrated monitoring systems that provide real-time temperature and level data.
For industrial applications, customized liquid nitrogen dewars might feature specialized valves, additional safety mechanisms, or unique port configurations. When exploring customization options, work closely with the manufacturer to ensure modifications won't compromise the dewar's performance or safety. While custom liquid nitrogen dewars typically cost more and have longer lead times, they can provide perfect solutions for specialized storage needs that standard models can't address.
5. Why Buy Liquid Nitrogen Dewar From Banagee?
Banagee is a renowned cryogenic storage manufacturer in China, Our cryogenic liquid nitrogen dewars stand out in the market for several key reasons:
- Superior Insulation: Multi-layer vacuum insulation maintains ultra-low temperatures with minimal boil-off
- Durable Construction: Made from premium 304/316L stainless steel for long-term reliability
- Precision Engineering: Each LN2 dewar undergoes rigorous quality testing
- Safety Features: Pressure relief valves and secure locking mechanisms standard on all models
As a leading liquid nitrogen dewar manufacturer and supplier in China, we offer:
- Quality Assurance: ISO 9001 certified manufacturing
- Technical Support: Expert guidance on selection and use
- Warranty: Industry-leading 5-year vacuum warranty
- Custom Solutions: Tailored designs for unique requirements
To cater to the needs of distributors, research institutions, medical facilities, and industrial users, we offer fully customizable liquid nitrogen dewar solutions, including:
- Custom capacities (from compact portable units to large-scale storage tanks)
- Material and insulation enhancements (for improved durability and efficiency)
- Branding options (logo engraving, color customization, and personalized packaging)
Let us help you strengthen your brand presence with bespoke dewars designed to your exact specifications!
6. Safety & Maintenance for Liquid Nitrogen Dewars
Proper handling and care of your liquid nitrogen dewar is essential for ensuring safe operation and maximizing its lifespan. Whether you're using a small laboratory dewar or a large industrial unit, following established safety protocols and maintenance routines will protect both your equipment and personnel.
Critical Safety Protocols for Liquid Nitrogen Dewars
Working with liquid nitrogen dewars requires strict adherence to safety measures due to the extreme cold temperatures involved. Always wear appropriate personal protective equipment including cryogenic gloves, face shields, and protective clothing when handling liquid nitrogen dewars. The -196°C (-321°F) liquid can cause severe frostbite upon contact with skin, making proper PPE non-negotiable.
Proper ventilation is crucial when using liquid nitrogen dewars, as the evaporating gas can displace oxygen in confined spaces. Never seal a liquid nitrogen dewar completely - the pressure buildup from evaporating nitrogen could cause dangerous ruptures. Always store and transport dewars in an upright position to prevent spills, and use specially designed carts for moving larger units. When filling your liquid nitrogen dewar, do so slowly to minimize thermal shock and excessive boiling, being careful to never overfill beyond the manufacturer's recommended capacity.
Proper Maintenance of Liquid Nitrogen Dewars
Regular maintenance is key to extending the service life of your liquid nitrogen dewar and ensuring consistent performance. Establish a routine inspection schedule to check for any signs of damage or wear, paying special attention to the vacuum insulation system. If you notice increased frost formation or faster-than-normal evaporation rates, it may indicate insulation failure requiring professional attention.
Keep your liquid nitrogen dewar clean by periodically wiping down the exterior with a mild detergent solution, avoiding abrasive cleaners that could damage the surface. For interior cleaning, only use approved methods - some dewars may require professional servicing for thorough cleaning. Always allow the dewar to warm to room temperature before performing any maintenance. When storing an empty liquid nitrogen dewar, leave the lid slightly ajar to prevent moisture buildup and potential vacuum seal damage, and keep it in a dry area away from direct sunlight and extreme temperature fluctuations.
Troubleshooting Common Liquid Nitrogen Dewar Issues
Even with proper care, you may encounter some common issues with your liquid nitrogen dewar. Excessive frost buildup often indicates insulation problems or overfilling - first check your filling procedures (the liquid level should never exceed the manufacturer's recommended maximum) and if frost persists, consider professional evaluation of the vacuum seal.
Another frequent concern is faster-than-expected evaporation rates, which could result from damaged neck tubes, faulty seals, or normal aging of the dewar. Compare your current evaporation rates to the manufacturer's specifications - if significantly higher, consider having the unit professionally inspected. For dewars that won't maintain pressure, check all valves and seals first (debris can sometimes prevent proper sealing), and if problems persist consult with the manufacturer as some repairs require specialized tools and expertise. Remember that attempting DIY repairs on a liquid nitrogen dewar's vacuum system typically voids warranties and may create safety hazards.
7. Frequently Asked Questions About Liquid Nitrogen Dewar
Q1: What's the typical lifespan of a liquid nitrogen dewar?
With proper care, our stainless steel liquid nitrogen dewars typically last 10-15 years.
Q2: How often do I need to refill a 50 liter dewar?
Our 50 liter liquid nitrogen dewar maintains contents for approximately 45-60 days under normal use.
Q3: Are your dewars suitable for international shipping?
Yes, all our liquid nitrogen shipping dewars meet international transport regulations.
Q4: Can I get a pressurized dewar?
We offer specialized pressurized liquid nitrogen dewars - contact us to discuss your specific needs.
Q5: What is a dewar of liquid nitrogen?
A liquid nitrogen dewar is a specialized vacuum-insulated container designed for safe storage and transport of cryogenic liquids, featuring double-walled construction with a vacuum layer for superior thermal insulation.
Q6: How long will liquid nitrogen last in a dewar?
Evaporation rates vary by size, but typically 1-2 liters per day in standard laboratory dewars (1L-50L capacity), with larger industrial models (100L+) showing proportionally lower loss rates.
Q7: What is the difference between a liquid nitrogen tank and a dewar?
While both store LN2, dewars are portable with superior insulation (typically 1-50L), whereas tanks are larger stationary vessels (100L+) designed for bulk storage with different pressure and dispensing systems.
Q8: Why is liquid nitrogen so cheap?
Liquid nitrogen is relatively inexpensive because it's a byproduct of oxygen production (78% of air), with established large-scale production methods and efficient distribution networks keeping costs low.
8. Ready to Purchase?
Whether you need a compact 5 liter liquid nitrogen dewar or an industrial-scale 230 liter LN2 dewar, Banagee has the perfect solution. Contact us today for pricing and availability.
For researchers seeking reliable liquid nitrogen dewars for sale, Banagee combines quality craftsmanship with competitive liquid nitrogen dewar prices to deliver exceptional value.
