The Ultimate Guide to Buying a Refrigerated Shipping Container
When it comes to transporting perishable goods, maintaining a controlled temperature is a must. Enter the refrigerated shipping container—a game-changer in preserving product quality.
Quick Facts:
- Types: Standard, High-Cube, Super Freezer
- Sizes Available: 10′, 20′, 40′
- Temperature Control: Integrated system
Refrigerated containers, often known as “reefers,” have transformed industries—from food and pharmaceuticals to chemicals and floristry—by ensuring products remain at precise temperatures during transit and storage.
These specialized containers come in various sizes and offer advanced features like customizable compartments, electrical outlets, and strip curtains. If you’re a business owner or construction manager, understanding these options will help you make an informed decision.
I’m Steve Hyndman, Vice President of Aztec Container. With over 30 years in the industry, I’ve seen the impact of choosing the right refrigerated shipping container.
What is a Refrigerated Shipping Container?
A refrigerated shipping container, often called a “reefer container,” is a specialized container designed to transport temperature-sensitive goods. These containers are crucial for industries that need to keep products cold, such as food, pharmaceuticals, and chemicals.
Definition
A refrigerated shipping container is essentially a large, insulated box equipped with a built-in cooling system. This system helps maintain a consistent internal temperature, regardless of external conditions.
Reefer Containers
Reefer containers come in various sizes, typically ranging from 20 feet to 40 feet. High-cube versions offer more storage capacity. They are designed to handle a wide range of temperatures, making them versatile for different types of cargo.
Temperature Control
One of the key features of a reefer container is its ability to maintain precise temperature control. These containers can keep temperatures as low as -70°C, ideal for transporting ultra-sensitive items like pharmaceuticals and certain chemicals.
Temperature control is managed through a combination of insulation and a built-in cooling system. The system includes components like compressors, evaporators, and fans that work together to circulate cool air and remove heat.
Built-in Cooling System
The built-in cooling system is the heart of any refrigerated shipping container. It consists of several key components:
- Compressor: Compresses refrigerant gas to cool the air.
- Evaporator Fans: Circulate cool air inside the container.
- Controller: Manages the temperature settings and monitors conditions.
- Fresh Air Vents: Allow for air exchange to remove gases like ethylene, which can spoil fresh produce.
This system ensures that the container maintains a stable temperature, even in extreme weather conditions. For instance, Maersk’s Remote Container Management (RCM) system uses advanced sensors to monitor and adjust the temperature, humidity, and air exchange rates, reducing the risk of spoilage (source: Forbes).
By understanding what a refrigerated shipping container is and how it works, you can better appreciate its importance in maintaining the cold chain for perishable goods. This knowledge will help you choose the right container for your needs, whether you’re shipping fresh produce, pharmaceuticals, or other temperature-sensitive items.
Next, let’s dive into the different types of refrigerated shipping containers available and how to choose the best one for your specific needs.
How Does a Refrigerated Shipping Container Work?
Understanding how a refrigerated shipping container works can explain the complexities of keeping your perishable goods safe and fresh. Let’s break it down into four main components: the cooling system, temperature regulation, insulation, and energy efficiency.
Cooling System
The magic of a refrigerated container lies in its cooling system. Imagine it as the heart of the container, tirelessly working to maintain the desired temperature. This system includes several key components:
- Compressor: Compresses refrigerant gas, which then moves through the system to cool the air inside.
- Evaporator Fans: Circulate the cool air evenly throughout the container, ensuring consistent temperature.
- Condenser: Removes heat from the refrigerant, allowing it to cool down and start the cycle again.
These components work together to create a controlled environment, perfect for transporting sensitive items like fruits, vegetables, and pharmaceuticals.
Temperature Regulation
Temperature regulation is crucial to maintaining the quality of your goods. Refrigerated containers come equipped with advanced controllers that allow you to set and monitor the internal temperature.
Fun Fact: Some modern containers even come with IoT technology to improve in-transit visibility, like those used by Maersk Line.
Additionally, features like fresh air vents help manage the internal atmosphere by removing gases like ethylene, which can speed up the ripening process in fruits.
Insulation
Insulation is another critical factor. High-quality insulation ensures that external temperatures—whether extreme heat or cold—don’t affect the goods inside.
Materials: These containers are often made with materials that provide excellent thermal resistance, such as polyurethane foam.
This insulation keeps the temperature stable, reducing the workload on the cooling system and enhancing energy efficiency.
Energy Efficiency
Running a cooling system 24/7 can be energy-intensive. That’s why energy efficiency is a key focus in the design of refrigerated containers.
- Efficient Components: Modern refrigeration units are designed to be energy-efficient, reducing the overall power consumption.
- Insulation Quality: Better insulation means less energy is needed to maintain the desired temperature.
- Advanced Monitoring: Systems that allow for remote monitoring and adjustments can help optimize energy use.
By focusing on energy efficiency, these containers not only save on operational costs but also contribute to a more sustainable shipping practice.
Understanding these components can help you make an informed decision when choosing a refrigerated shipping container. Next, let’s dive into the different types of refrigerated shipping containers available and how to choose the best one for your specific needs.
Types of Refrigerated Shipping Containers
When it comes to refrigerated shipping containers, there are several types to choose from. Each type caters to different needs and specifications. Let’s break down the most common types you’ll encounter.
Standard Sizes
Refrigerated containers, also known as “reefers,” come in standard sizes, typically 20-foot and 40-foot units. These sizes are ideal for a wide range of perishable goods.
- 20-Foot Reefer Container:
- Dimensions: 20’ x 8’ x 8’
- Capacity: Approximately 27 cubic meters
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Ideal for smaller shipments or businesses with limited storage needs.
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40-Foot Reefer Container:
- Dimensions: 40’ x 8’ x 8’
- Capacity: Around 67 cubic meters
- Suitable for larger shipments, offering more space for bulk storage.
High Cube Containers
High cube containers offer an extra foot in height compared to standard containers, providing more volume for cargo.
- 40-Foot High Cube Reefer Container:
- Dimensions: 40’ x 8’ x 9’6”
- Capacity: Approximately 76 cubic meters
- Perfect for taller or more voluminous items, like stacked goods or bulky products.
Super Freezer Containers
Sometimes, standard refrigeration isn’t enough. Super freezer containers are designed for ultra-low temperature needs.
- Ultra-Low Temperature Capability:
- Can achieve and maintain temperatures from -40°C to -80°C or even colder.
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Ideal for highly sensitive products like vaccines, pharmaceuticals, and certain high-value food items.
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Advanced Features:
- Equipped with robust refrigeration systems.
- Exceptional insulation to minimize temperature fluctuations.
- Advanced monitoring systems with alarms for any temperature deviations.
Specialized Features
Super freezer containers come with a range of specialized features:
- Blast-Freeze Functionality:
- Can maintain stable temperatures down to -76°F.
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Ensures products remain in their original condition.
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Redundant Systems:
- Optional dual freezer systems for extra security.
- Capable of providing temperatures from +50 to -65°C.
Selecting the right type of refrigerated shipping container depends on your specific needs. Whether you need a standard 20-foot unit for local deliveries or a high cube container for more space, understanding these options will help you make an informed decision.
Next, we’ll explore the key features to look for in a refrigerated shipping container to ensure you get the best value for your investment.
Key Features to Look for in a Refrigerated Shipping Container
When investing in a refrigerated shipping container, it’s crucial to understand the key features that will ensure your goods are kept in optimal condition. Here are the essential aspects to consider:
Insulation Quality
High-quality insulation is the backbone of any good refrigerated container. Insulation prevents external temperatures from affecting the internal environment. The R-value measures insulation effectiveness; a higher R-value indicates better insulation. This is critical for maintaining consistent temperatures and energy efficiency.
Temperature Control
Accurate temperature control is vital for preserving the integrity of your cargo. Look for containers that offer a wide range of temperature settings, from chilled to frozen. Some advanced units can even provide temperatures as low as -65°C. Reliable temperature control ensures that perishable goods, pharmaceuticals, and other sensitive items remain in perfect condition.
Advanced Monitoring
Modern refrigerated containers often come with advanced monitoring systems. These systems can include remote monitoring, allowing you to track temperature, humidity, and other conditions in real time. This feature is invaluable for ensuring that your cargo remains within the required parameters throughout its journey.
Customizable Design
Every business has unique needs. Customizable options like walk-in cooler-type doors, internal partitions for different temperature zones, and specialized shelving can make a significant difference. Custom designs can help you store both chilled and frozen items in one container, providing flexibility and efficiency.
Electrical and Plumbing Integration
For units that require specific electrical setups, ensure the container can run on your available power supply. Most units operate on three-phase electrical systems, either 440V or 220V. Some containers also come with integrated plumbing for easy cleaning and maintenance, adding to their convenience and functionality.
Durable Floors
The type of flooring in your refrigerated container can impact both its durability and ease of use. Flat floors are ideal for walk-in storage and are easier to clean, while corrugated T floors allow for better air circulation and are suitable for forklift loading. Choose the flooring type that best suits your operational needs.
By focusing on these key features, you can select a refrigerated shipping container that meets your specific requirements and ensures the safe and efficient transport of your temperature-sensitive goods.
Next, we’ll dig into the benefits of using refrigerated shipping containers, highlighting how they can add value to your business.
Benefits of Using Refrigerated Shipping Containers
Refrigerated shipping containers, also known as reefer containers, offer numerous benefits that make them essential for transporting temperature-sensitive goods. Let’s explore how these containers can add value to your business:
Preservation
Reefer containers are designed to maintain a consistent temperature, which is crucial for preserving the quality of perishable items. Whether you’re transporting meats, cheeses, or pharmaceuticals, these containers help extend the shelf life of your products. For example, flowers shipped in refrigerated containers remain fresh and appealing, ensuring they reach customers in perfect condition.
Extended Shelf Life
By keeping products at the right temperature, refrigerated shipping containers prevent spoilage and waste. This is particularly important for businesses dealing with frozen foods or dairy products. Extended shelf life means you can store and transport larger quantities without worrying about your goods going bad, ultimately saving you money.
Versatility
Refrigerated containers are incredibly versatile and can be used across various industries. From catering companies delivering prepared meals to research labs transporting sensitive samples, these containers meet diverse needs. They can even be customized with features like remote monitoring and backup power options to suit specific requirements.
Reliability
One of the standout features of refrigerated shipping containers is their reliability. With advanced refrigeration systems, these containers ensure that your cargo remains at the desired temperature throughout the journey. For instance, wineries use these containers to transport wine, ensuring it arrives in perfect condition.
Security
Security is another significant benefit of using refrigerated shipping containers. These units are built to be robust and secure, protecting your valuable cargo from theft and damage. Chemical and hazardous materials can be safely transported in these containers, ensuring they remain stable and unchanged.
In the following section, we’ll look at the various industries that rely on refrigerated shipping containers and how they benefit from their use.
Industries That Use Refrigerated Shipping Containers
Refrigerated shipping containers, also known as reefers, are vital for many industries. Let’s explore how different sectors benefit from these temperature-controlled units.
Food and Beverage
Food and beverage businesses rely heavily on refrigerated shipping containers. These containers keep perishable items like meat, seafood, dairy, and bakery products fresh during transportation. For example, bakeries use reefers to move ingredients and finished products without compromising quality.
Pharmaceuticals
The pharmaceutical industry requires strict temperature control to ensure the integrity of medications. Reefer containers maintain the necessary conditions for transporting vaccines, insulin, and other temperature-sensitive drugs. This helps maintain their efficacy and safety throughout the supply chain.
Chemicals
Certain chemicals and hazardous materials need stable temperatures to remain unchanged. Refrigerated containers provide a controlled environment, ensuring these substances do not react or degrade during transit.
Florists
Florists and flower growers use refrigerated containers to transport delicate flowers. These units keep the flowers fresh and appealing, ensuring they arrive in perfect condition for events or retail sale.
Catering
Catering companies depend on reefers to deliver prepared meals, beverages, and cakes to events. These containers help maintain the taste and safety of the food, ensuring it reaches customers in top condition.
Research Labs
Research labs often need to transport sensitive samples, reagents, and materials. Refrigerated containers ensure these items remain in optimal condition, which is crucial for accurate research results.
Agriculture
Agriculture also benefits from refrigerated containers. Nurseries and plant growers use these units to transport plants, trees, seeds, and vegetables, keeping them cool and protected from heat damage.
In the next section, we’ll guide you on how to choose the best refrigerated shipping container for your needs.
How to Choose the Best Refrigerated Shipping Container
Choosing the right refrigerated shipping container can feel overwhelming, but breaking it down into key factors makes it easier. Here’s a simple guide to help you make the best choice:
Cargo Type
First, identify what you’ll be transporting. Different goods have different needs. For example, perishable foods like seafood and dairy need consistent cold temperatures to stay fresh. Pharmaceuticals might require specific, stable temperatures to maintain their efficacy. Knowing your cargo type helps in selecting the right container.
Temperature Requirements
Next, determine the temperature range your cargo requires. Most refrigerated containers can maintain temperatures between -25°C (-13°F) for frozen goods and up to 25°C (77°F) for chilled items. Check the unit’s capabilities to ensure it meets your needs.
Insulation
Insulation quality is crucial for maintaining temperature. Look for containers with high R-values, which indicate better insulation. This ensures energy efficiency and consistent temperature control.
Dimensions
Choose the right size based on the volume of goods you need to transport. Common sizes include 20-foot, 40-foot, and high-cube containers. Measure your cargo to ensure it fits comfortably within the container’s dimensions.
Additional Features
Consider any extra features that might benefit your cargo. Options include:
- Remote monitoring systems for real-time temperature tracking.
- Advanced refrigeration systems for precise control.
- Backup power options for added security.
- Interior lighting and electrical outlets for convenience.
Budget
Determine your budget early on. While advanced features and larger sizes may cost more, they can offer better protection for your cargo. Balance your needs with your budget to find the most cost-effective solution.
Customization
If your cargo has special requirements, customization may be necessary. Some companies offer custom solutions such as:
- Walk-in cooler doors for easy access.
- Partitions to store both chilled and frozen goods.
- Stainless steel interiors for hygiene-sensitive items.
Maintenance History
If you’re buying a used container, inquire about its maintenance history. Regularly maintained units are more reliable and less likely to fail. Ask for documentation of past maintenance and repairs.
Industry Standards
Ensure the container complies with relevant industry standards and certifications for safety and quality assurance. This is especially important for industries like pharmaceuticals and food, where compliance is mandatory.
By considering these factors, you can confidently choose the best refrigerated shipping container for your needs. Up next, we’ll answer some frequently asked questions about refrigerated shipping containers.
Frequently Asked Questions about Refrigerated Shipping Containers
What is the R value of a refrigerated shipping container?
The R value measures the insulation effectiveness of a material. For refrigerated shipping containers, a higher R value means better insulation and energy efficiency. Most reefer containers have an R value between 20 and 30. This ensures the container maintains a consistent temperature, which is crucial for transporting perishable goods like fruits, vegetables, and pharmaceuticals.
What is the most common problem in refrigerated shipping containers?
The most common issue with refrigerated shipping containers is leakage. Leakage can occur due to damaged seals, cracks, or improper door closures. This can lead to temperature fluctuations, which might spoil the cargo. Regular maintenance and repair are essential to prevent and address these issues. Conducting routine checks for any signs of wear and tear can help maintain the container’s integrity and efficiency.
What is the lifespan of a reefer container?
The lifespan of a reefer container typically ranges from 10 to 15 years. However, this can vary based on usage and maintenance. Containers used frequently for long-distance transport may experience more wear and tear compared to those used for static storage. Regular maintenance and timely repairs can extend the lifespan of a reefer container, ensuring it remains reliable and efficient throughout its use.
By understanding these common questions, you can make informed decisions about your refrigerated shipping container needs.
Conclusion
Choosing the right refrigerated shipping container is crucial for maintaining the quality and safety of your temperature-sensitive goods. At Aztec Container, we pride ourselves on offering a variety of customizable solutions to meet your unique needs.
Competitive Prices
We understand the importance of cost-effectiveness, which is why we offer competitive prices without compromising on quality. Whether you need a basic model or a state-of-the-art container, you’ll find that our rates are among the best in the industry.
Fast Delivery
Time is of the essence, and we ensure fast delivery to get your container to you when you need it. Our streamlined processes and large inventory mean you won’t have to wait long. Plus, we handle all logistics, making the process hassle-free for you.
Customizable Solutions
Every customer has unique requirements, and we offer a wide range of customization options. From adding windows and doors to insulating the interior, we can modify a refrigerated container to suit your specific needs. Our team is experienced in changing containers into homes, offices, and even emergency shelters.
For more information and to browse our selection of refrigerated shipping containers, visit our refrigerated steel containers page.
Thank you for considering Aztec Container for your shipping container needs. We look forward to serving you!
