Dry Shipper Liquid Nitrogen Tank: What It Is, How It Works, Applications, and How to Choose the Right Model

 A Dry Shipper Liquid Nitrogen Tank is a specialized cryogenic container designed for the safe transportation of biological samples at ultra-low temperatures without the risk of liquid nitrogen spilling or leaking. It is widely used in laboratories, biotech companies, fertility clinics, universities, and pharmaceutical logistics where secure, compliant, and long-distance cryogenic shipping is required.

This article explains what a dry shipper LN2 tank is, how it works, what it is used for, its advantages, and how to select the right model based on real search intent.

What Is a Dry Shipper Liquid Nitrogen Tank?

A Dry Shipper Liquid Nitrogen Tank is a vacuum-insulated container that absorbs liquid nitrogen into a highly efficient cryogenic absorbent material. Instead of storing free liquid nitrogen, it retains LN2 in an adsorbed state, allowing it to maintain temperatures around –190°C during transport without free-flowing liquid.

Key characteristics include:

• No liquid nitrogen sloshing

• Spill-free and leak-proof transportation

• Safe for air, sea, and ground transport

• IATA-compliant for airline shipping of biological materials

These tanks allow samples to remain at stable cryogenic temperatures for several days depending on model capacity.

How a Dry Shipper Liquid Nitrogen Tank Works

Although the tank operates at cryogenic temperatures, it does not hold free liquid nitrogen inside. Its function relies on three key components:

1. Cryo-absorbent Material

A high-performance absorbent or vapor retention material absorbs LN2 and prevents liquid movement.

2. Vacuum Insulated Structure

The outer tank is built with multi-layer insulation and deep vacuum sealing, reducing LN2 evaporation and maintaining ultra-low temperatures.

3. Vapor Phase Storage

Samples stay suspended above the absorbent material, protected in a vapor-phase cryogenic environment.

This design ensures:

• Maximum safety

• No risk of spilling

• Compliance with transport regulations

Dry Shipper Liquid Nitrogen Tank YDS Series

Key Advantages of Dry Shipper Liquid Nitrogen Tanks

1. Safe Transportation

Because no free liquid exists inside, it eliminates:

• Spillage

• Leakage

• Pressure build-up risks

This makes it suitable for airline and courier shipments.

2. Long-Lasting Cryogenic Temperature

Most dry shippers maintain temperatures below –150°C for 5–20 days, depending on capacity and model.

3. IATA Compliance

Meets international air transport standards for biological sample shipping.

4. Protection for Sensitive Samples

Ensures the integrity of samples such as:

• DNA, RNA, and cells

• Vaccines and biologics

• Embryos and sperm

• Tissue samples

• Industrial materials requiring cryogenic stability

5. Durable and Lightweight

Aluminum alloy construction makes the tank resistant to impact and suitable for frequent handling during shipping.

Common Applications of Dry Shipper LN2 Tanks

Biotechnology and Genetic Research

For long-distance transportation of genetically sensitive materials.

IVF and Fertility Clinics

Transporting sperm, embryos, oocytes, and reproductive cells.

Pharmaceutical and Medical Research

Maintaining cold chain for vaccines, biological agents, clinical trial samples, and cell therapy materials.

University and Laboratory Use

For field research or collaboration between institutions.

Livestock Breeding

Cryogenic storage and transportation of semen for animal breeding programs.

Industrial Cryogenic Logistics

Transporting materials sensitive to ultra-low temperature changes.

Key Features to Look For in a High-Quality Dry Shipper Liquid Nitrogen Tank

1. Static Hold Time

Indicates how long the tank can maintain low temperature without refilling.
Ranges from 5 to 20+ days.

2. Storage Capacity

Choose based on the number and type of cryo vials, straws, or canisters.

3. Weight and Portability

Lightweight aluminum tanks are ideal for shipping.

4. Absorbent Material Efficiency

High-quality absorbents ensure minimal LN2 loss and stable low temperature.

5. Neck Diameter

Affects loading efficiency and sample access.

6. Protective Shipping Case

Most dry shippers come with a lockable, shock-absorbing outer case for transportation safety.

7. Compliance Certifications

Look for compliance with:

• IATA regulations

• CE standards

• ISO quality control

8. Anti-Tip and Anti-Pressure Design

Prevents damage during transport and handling.

Best Practices for Using a Dry Shipper Liquid Nitrogen Tank

• Pre-cool the tank for several hours before loading samples.

• Ensure samples are placed in vapor-phase area above the absorbent.

• Use a laboratory-approved transport case during shipping.

• Monitor LN2 levels and static hold time.

• Keep the tank upright to maintain uniform temperature distribution.

• Only refill with approved cryogenic-grade liquid nitrogen.

These steps ensure the tank performs safely and maintains the required cryogenic conditions.

Why a Dry Shipper Tank Is Essential for Cryogenic Transport

Conventional liquid nitrogen tanks are excellent for storage but not safe for shipping. Dry shippers solve this problem by offering:

• Ultra-low temperature stability

• Zero-risk cryogenic transport

• Compliance with global shipping regulations

• Reliable sample integrity over long distances

This is why dry shipper LN2 tanks have become the industry standard in biological, medical, and scientific transportation.

Conclusion

A Dry Shipper Liquid Nitrogen Tank is a crucial tool for safely transporting biological and cryogenic samples across long distances while maintaining ultra-low temperatures without free liquid nitrogen. With features such as IATA compliance, vapor-phase storage, and durable vacuum insulation, these tanks ensure the reliability and safety required in modern scientific, medical, and industrial applications.