Specifications for 20-foot Refrigerated Containers & Installation Procedures

In the context of the increasingly developing cold chain supply, 20-foot refrigerated container It has become the leading solution for transporting and storing goods requiring strict temperature control. More than just a transport device, it's considered a modern "mobile storage station," helping to maintain the freshness of agricultural and aquatic products and ensure the activity of pharmaceuticals throughout their journey. Tan Longwith over 20 years of in-depth experience in the installation field. cold storage For industrial applications, we offer a range of ISO-certified 20ft containers, integrated with durable air conditioning systems from Carrier and Daikin. This article will provide a detailed analysis of the technical specifications, construction, and latest price list to help you choose the optimal solution for your business.

Overview of 20-foot refrigerated containers (Reefer Containers)

20-foot refrigerated container (also known as Reefer Container 20ft) is a specialized shipping container designed to preserve goods requiring a stable temperature environment throughout transportation or storage. With its compact size but powerful refrigeration capabilities, this type of container has become the preferred choice for businesses needing to transport fresh food, agricultural products, or pharmaceuticals. At Tan Long, we provide solutions. 20-foot refrigerated container It integrates an intelligent control system, making it easy for users to monitor and customize. refrigerated container temperature According to the specific characteristics of each product, we ensure that the quality of goods is maintained from the point of origin to the point of destination.

Some of the key technical specifications and features of this container line include:

• Cabinet structure: Constructed from a highly durable Corten steel frame, lined with stainless steel (304) and filled with high-density polyurethane (PU) insulation, it provides optimal heat retention, similar to materials used in other product lines. cold storage door current industry.
• Cooling system: Use the lines refrigeration compressor Imported directly from leading global brands such as Carrier, Daikin, or Thermo King, ensuring deep cooling capabilities and durable operation under harsh conditions.
• Operating temperature range: Extremely versatile, ranging from -30°C to +30°C, meeting stringent standards for both deep-frozen and chilled goods requiring high humidity.
• High mobility: With its ISO standard dimensions, the equipment can be easily lifted and transferred flexibly between road and sea transport methods without unloading.

In terms of operation, the cooling system of 20-foot refrigerated container Operating on the principle of forced cold air circulation, this device allows cold air to penetrate every gap in the packages. This not only helps preserve the nutritional value of the products but also optimizes energy consumption. Thanks to its standardized design and high durability, this equipment is not only used in transportation but is also utilized by many businesses as a mobile mini-cold storage facility at collection points or retail stores, providing maximum flexibility in the modern logistics supply chain.

Detailed specifications of the 20-foot refrigerated container.

20-foot refrigerated containers have standard dimensions as specified by ISO (International Organization for Standardization). These specifications ensure compatibility with various modes of transport such as ships, trucks, and railways. Below are the detailed specifications of a 20-foot refrigerated container:

Standard specifications for 20-foot refrigerated containers:

To maintain a stable temperature, 20-foot refrigerated container Equipped with advanced refrigeration equipment with the following configuration:

• Power supply requirements: Three-phase, voltage 380V – 460V, frequency 50/60Hz.
• Operating temperature range: With a temperature range of -25°C to +25°C, it is suitable for both frozen and chilled goods.
• Refrigerant: Use environmentally friendly refrigerants such as R134a, R404A, R452A, or the newer generation R1234yf.
• Quality standards: Fully compliant with international certifications including ISO, TIR, and the Convention on Container Safety (CSC).

These specifications may vary slightly depending on the manufacturer and specific container model. However, they must all meet minimum requirements to ensure safety and efficiency during transportation. Understanding these specifications is crucial for selecting the right container for your needs and complying with freight regulations.

Furthermore, another important factor to consider is the insulation capacity of the container. Refrigerated container shells are made from high-quality insulation materials, which prevent heat exchange between the inside and outside. The thickness of the insulation layer directly affects the ability to maintain a stable temperature inside the container. Modern containers often use polyurethane or other advanced insulation materials for optimal efficiency.

Detailed structure of the refrigeration system of a 20-foot refrigerated container.

The refrigeration unit is considered the "heart" of the system. 20-foot refrigerated containerThis system plays a crucial role in establishing and maintaining the optimal temperature range for goods. Unlike stationary refrigeration systems, this equipment must operate stably under conditions of continuous movement, subject to vibrations and the harsh marine environment. With over 20 years of experience in the refrigeration and air conditioning industry, Tan Long believes that a standard system requires the synchronized coordination of high-quality technical components.

Compressor

This is the core component that performs the task of compressing the refrigerant from low pressure to high pressure, creating a temperature circulation cycle. Choosing the right compressor is crucial to ensuring optimal cooling performance. 20-foot refrigerated containerDepending on the capacity, the system can utilize piston, screw, or scroll compressors with extremely high durability and resistance to strong vibrations. At Tan Long, we prioritize the use of these types of compressors. refrigeration compressor We import genuine products to optimize energy efficiency and reduce operating costs for our customers.

Evaporator coil

This is where the refrigerant absorbs heat from the air inside the container to convert it into a gaseous state. The cooled air is then evenly distributed throughout the compartment by a fan system, helping to maintain temperature. refrigerated container temperature Uniform. This device is typically constructed from copper or aluminum tubing with thick heat sinks, achieving heat exchange efficiency comparable to other models. industrial refrigeration current standards.

Condenser

It plays a role in cooling the refrigerant by releasing heat to the external environment. It is located on the outer surface of the 20-foot refrigerated containerIn an environment with good airflow, the condenser helps the refrigerant transition from a gaseous to a liquid state to begin a new cycle. The design of the condenser directly affects the compressor's lifespan; a clean condenser with rapid heat dissipation will help the entire system operate more smoothly.

Throttle valve

The expansion valve functions to reduce the pressure of the refrigerant before it enters the evaporator. As the refrigerant passes through the expansion valve, its pressure drops abruptly, reducing its temperature. The refrigerant then enters the evaporator and evaporates, absorbing heat from inside the container.

The expansion valve is a crucial component in a refrigeration system, regulating the flow of refrigerant into the evaporator. A properly adjusted expansion valve ensures sufficient refrigerant is supplied to meet the container's cooling needs. If the expansion valve is clogged or improperly adjusted, it can reduce the system's cooling efficiency or even cause damage to other components.

Intelligent control system

The differences between the lines 20-foot refrigerated container Modern technology utilizes an integrated control system with sensors and microprocessors. This system not only automatically maintains the set temperature but also has the ability to record data (Data Logger) throughout the journey. Tan Long is currently integrating these solutions. PLC control cabinet Wireless connectivity allows businesses to monitor temperature and humidity and receive incident alerts directly on their smartphones or tablets, providing complete peace of mind for the cold chain logistics.

In general, an ISO-standard refrigeration system provides 20-foot refrigerated container Strict maintenance and replacement of genuine parts are essential. Understanding the technical structure not only helps you operate the equipment more efficiently but also forms the basis for evaluating quality when purchasing or renting containers. With deep expertise, Tan Long is always ready to partner with customers in advising on the most durable refrigeration equipment solutions, helping to protect the value of goods under all transportation conditions.

The superior structural features and functions of a 20-foot refrigerated container.

20-foot refrigerated container Distinguished by its unique engineering design, it integrates advanced refrigeration technologies to transform a metal container into a perfect storage environment. Below is a detailed analysis from the perspective of refrigeration experts at Tan Long:

Container shell structure: Multi-layered protective film

Shell of 20-foot refrigerated container It's not simply a steel frame, but a complex, meticulously designed insulation system:

• Ultra-durable outer shell: Typically constructed from stainless steel or high-grade aluminum alloy, these materials enable containers to withstand the severe corrosion of seawater and the impact of collisions during multimodal transport.
• Core insulation layer: Inside is a layer of high-density polyurethane (PU) with a standard thickness, which helps to eliminate heat exchange between the external environment and the storage chamber. This is also the technology that Tan Long prioritizes in the construction of industrial cold storage shells.
• Absolute sealing system: The container is equipped with elastic rubber gaskets at the doors and joints, ensuring a tight seal and completely preventing the ingress of hot air and moisture.

Operating function: Intelligent storage environment control

The core function of 20-foot refrigerated container It's not just about "keeping things cold," but about comprehensively managing the internal environment to protect the value of the goods:

• Maintain the correct temperature: Through automatic control systems and various refrigeration compressor With high power output, the device ensures a consistently stable temperature according to the settings (extremely low error margin), providing maximum protection for pharmaceuticals and fresh food.
• Control humidity and atmosphere: The container is capable of adjusting humidity to suit different types of agricultural products, while also managing oxygen and CO2 levels, which helps slow down the respiration of the fruit and prevent mold growth.
• Ethylene gas ventilation system: Lines 20-foot refrigerated container Modern storage solutions designed by Tan Long incorporate ventilation, which helps remove ethylene gas produced during fruit ripening, thereby extending shelf life by 2-3 times compared to conventional methods.

Thanks to these superior characteristics, the application 20-foot refrigerated container Integrating industrial refrigeration processes into the system not only helps businesses minimize product losses but also optimizes long-term operating costs.

The outstanding advantages of using 20-foot refrigerated containers in transportation.

Application 20-foot refrigerated container Integrating it into the logistics process brings groundbreaking benefits. It goes far beyond traditional preservation methods. This is not just a means of transportation, It is also a solution to protect the value of a company's assets against the harsh fluctuations of the environment.

Here are the most practical advantages that 20-foot refrigerated container provides:

• Guaranteed absolute product quality: Thanks to its ability to maintain very low or stable cool temperatures, The device helps to completely prevent the entry of bacteria and mold. This ensures agricultural products, Seafood and pharmaceuticals retain their original nutritional content and sensory characteristics.
• Optimizing long-distance transportation: ISO standard design allows 20-foot refrigerated container Flexible connectivity between ships, tractor trailers and railways. Goods can travel across borders for days without the risk of thermal shock or spoilage.
• Savings on investment and operating costs: Although the initial investment cost may be higher than for dry containers, However, the ability to minimize the loss ratio is the key factor that helps businesses optimize profits. Furthermore, Durable container shells also help reduce the burden of transportation insurance fees.
• Exceptional flexibility (Mobile Cold Storage): The unique feature is that businesses can use this device as a cold storage temporary storage at warehouses or construction sites without the need for permanent infrastructure construction.
• Intelligent monitoring system: Lines 20-foot refrigerated container Modern features are often integrated. control cabinet smart, allows tracking, Log temperature and remotely alert about incidents. This helps shippers keep track of their inventory 24/7.

In Tan Long, We not only provide equipment solutions but also work alongside customers in advising on the selection of the most suitable air conditioner capacity and refrigerant for each product type. The combination of standard container shells and other materials. refrigeration equipment Using genuine parts will help the system operate reliably. Save energy and achieve the highest return on investment (ROI).

Practical applications of 20-foot refrigerated containers in industry.

Thanks to its advantages in flexible size and absolute precision in temperature control, 20-foot refrigerated container It has become the top priority solution in the cold chain supply in Vietnam. Not only does it serve as a means of transportation, but this equipment is also considered a strategic link in the system. industrial refrigeration Modern and efficient, these containers help connect the flow of goods from manufacturing plants to consumers. At Tan Long, we have observed that this type of container is being widely used in many key sectors thanks to its customizable capabilities. refrigerated container temperature Flexible, ranging from cool to deep freezing temperatures.

Below are some of the most typical practical applications of 20-foot refrigerated container which businesses can leverage:

• Food and Seafood Industry: This is the area with the highest utilization rate. Containers help maintain the freshness and nutritional value of exported fruits, vegetables, meat, and seafood. Their deep freezing capabilities effectively inhibit bacteria, operating similarly to a refrigerator. cold storage Standard but with the advantage of high portability.
• Pharmaceutical and Healthcare Industry: Vaccines, specific treatments, and other medical biological products always require strict storage conditions with extremely low temperature tolerance. 20-foot refrigerated container ISO certification ensures a sterile and stable environment, protecting goods from temperature fluctuations throughout long-distance transportation.
• Chemical and Electronics Components Industry: Certain types of chemicals, solvents, or electronic chips are extremely sensitive to temperature and humidity. Using refrigerated containers helps prevent the risk of fire or explosion due to overheating or structural damage to materials, ensuring absolute safety for high-value items.
• High-tech agriculture sector: Transporting seeds, plants, and fresh flowers from the source region to major consumption centers. Advanced ventilation system on 20-foot refrigerated container This helps agricultural products "breathe" better, controlling ethylene gas levels, thereby extending shelf life and maintaining a fresh appearance.
• Retail and Temporary Storage Industry: In large supermarkets or convenience store chains, this equipment is often utilized as a mobile refrigerated warehouse during peak holiday seasons. This solution helps businesses significantly save on the cost of building fixed infrastructure while still ensuring sufficient inventory.

At Tan Long, we understand that each industry has its own specific technical standards for preservation. Therefore, in addition to providing product lines... 20-foot refrigerated container In addition to high quality, we also provide expert advice on product selection. refrigeration equipment Genuine replacement parts and regular maintenance procedures for container air conditioners. The combination of durable equipment and the right technical solutions from experts will help businesses optimize economic efficiency and ensure the safety of all shipments.

Distinguishing between common types of 20-foot containers

Although they all share the same ISO standard dimensions, each type of 20-foot container is designed with a unique structure and features to serve different transportation purposes. Understanding the differences between these container types not only helps businesses optimize their logistics processes but also ensures the absolute safety of goods, especially those requiring strict quality control. refrigerated container temperature Strictly. At Tan Long, we always advise customers based on product characteristics to help them make the most effective choice among the following popular container lines:

• 20-foot reefer container (Reefer Container): This is the most specialized type of container, equipped with an active cooling system (container air conditioner) to maintain a stable temperature throughout the journey. The core difference is... 20-foot refrigerated container Compared to other models, this device offers superior cooling capabilities and controls humidity, oxygen, and carbon dioxide levels through intelligent sensors. It operates similarly to a conventional air conditioner. cold storage mobile, using lines refrigeration compressor Large capacity for storing fresh food, pharmaceuticals, and vaccines.
• 20-foot insulated container: This type of container has a shell structure relatively similar to refrigerated containers thanks to its thick insulation panels, but the difference is that it does not have an integrated refrigeration unit. Insulated containers are primarily used to protect goods from sudden temperature fluctuations from the external environment (heat or cold protection) for items such as wine, beverages, or sensitive components.
• 20-foot dry container (Dry Container): This is the most common type of container in maritime transport, constructed from high-strength Corten steel. However, dry containers have absolutely no insulation or refrigeration system. Therefore, they are only suitable for dry general merchandise, machinery, and equipment that are not affected by high ambient temperatures and humidity.
• 20-foot two-door container (Double Door Container): This type of container has a special design with two sets of doors at each end, making loading and unloading extremely flexible and fast. Two-door containers can be customized into dry containers or 20-foot refrigerated container Depending on the needs. The door design of this series requires an extremely tight rubber seal system, meeting the same standards as other series. cold storage door Specifically designed to prevent heat loss if used for refrigeration purposes.

Properly distinguishing the function of each type of container will help you avoid unnecessary risks of cargo damage and wasted operating costs. If your business deals with sensitive agricultural, aquatic, or pharmaceutical products, investing in or leasing containers is crucial. 20-foot refrigerated container This is the most sustainable solution to ensure that product quality meets international standards when it reaches customers.

Latest price list for 20-foot refrigerated containers.

Determining investment costs for 20-foot refrigerated container This depends on many technical factors, including the brand of the integrated air conditioner, the condition of the casing, and the accompanying monitoring technologies. A quality device not only ensures longevity. refrigerated container temperature It's not only stable but also helps businesses optimize operating costs through superior energy saving capabilities. At Tan Long, we prioritize advising on container lines that utilize this system. refrigeration compressor Genuine products from Carrier, Daikin, or Thermo King ensure fast and durable cooling performance in harsh environments.

Below is a price list for reference for this product line. 20-foot refrigerated container Based on the current market conditions:

• New 20-foot refrigerated container (100%): Prices range from 180,000,000 – 250,000,000 VNDThis is the perfect choice for businesses exporting through official channels, requiring equipment with the highest reliability and integration. PLC control cabinet Intelligent for monitoring trip data.
• Used 20-foot refrigerated containers (Quality 70% – 90%): Prices range from 80,000,000 – 150,000,000 VNDThis is an economical and effective solution for temporary storage or domestic transportation needs, provided the air conditioner has passed the PTI (Pre-Trip Inspection) technical standard.

It should be noted that the prices above are for reference only at the time of writing and may change depending on global steel price fluctuations or specific custom requirements for insulation cladding. Compared to building a cold storage fixed, investment 20-foot refrigerated container This offers extremely high mobility and the ability to recover capital quickly through easy liquidation or reuse. To receive the most accurate quotation and optimal technical solution for each type of goods, please contact Tan Long's experts directly for in-depth survey and consultation support.

Practical experience in choosing quality 20-foot refrigerated containers.

Investing in a system 20-foot refrigerated container Technical expertise is required to ensure the equipment operates reliably and protects the value of goods to the maximum extent. With over 20 years of experience in the industrial refrigeration industry, Tan Long would like to share the core criteria to help businesses choose the most suitable products:

• Clearly identify the needs and characteristics of the goods: Each type of product, from agricultural and seafood products to pharmaceuticals, has its own specific temperature and humidity requirements. You need to determine the desired operating temperature range to select the appropriate refrigeration capacity. If your purpose is to store large quantities in a fixed location, you may consider installing a cold storage facility to optimize space.
• Inspect the casing and cooling system for technical details: This is the most important step.
  • Container shell: It must be ensured that there are no punctures or dents that could affect the polyurethane (PU) insulation layer.
  • Machine system: Check critical components such as the compressor, industrial refrigeration and the fan system. Ensure the machine operates smoothly, without strange noises, and reaches the target temperature quickly.
• Intelligent control system: Prioritize container models equipped with modern control panels, clear display screens showing parameters, and automatic temperature logging functions for easy remote monitoring.
• Comply with international standards: One 20-foot refrigerated container To meet the standards, a company must possess important certifications such as ISO (size standards), CSC (transport safety), and TIR (international transport) to ensure global consistency.
• Choose a reputable supplier: Look for companies with practical technical capabilities, readily available genuine refrigeration system parts for replacement, and professional maintenance and after-sales service.

The right choice 20-foot refrigerated container This will help businesses significantly save on electricity costs and minimize the risk of product damage from the start. If you have any questions about technical specifications or need a detailed quote, the engineering team at Tan Long is always ready to assist with site surveys and advise on the most optimal solution.

Why choose refrigerated container solutions from Tan Long Refrigeration and Electrical Engineering?

Throughout nearly 20 years of specialized operation, Tan Long Refrigeration and Electrical Engineering Joint Stock Company has affirmed its position as a leading provider of industrial refrigeration solutions in Vietnam. We understand that every single unit... 20-foot refrigerated container It's not just a simple transportation device, but also a strategic "asset" that protects the quality of your goods and your reputation in the market. By combining modern technology and practical experience, Tan Long is committed to delivering superior value that few purely commercial entities can match.

Here are the core reasons why thousands of businesses have trusted and chosen solutions from Tan Long:

• The product meets international standards: Lines 20-foot refrigerated container (Including both new and used goods) are rigorously inspected by us through the PTI (Pre-Trip Inspection) process. The container shell ensures perfect insulation with a high-density PU foam layer and an absolutely airtight structure to maintain temperature. refrigerated container temperature Stable and meets the most stringent maritime transport standards.
• Highly skilled technical team: Tan Long's greatest strength lies in its team of highly experienced engineers in the field of refrigeration and air conditioning. We have a deep understanding of system structures. refrigeration compressor and the optimal operating method of PLC control cabinetThis allows us to readily advise on and handle any complex technical situations, ensuring the equipment always operates at its best.
• Cost-effective – Sustainable results: Tan Long is committed to providing the most competitive prices on the market along with reasonable investment solutions. By advising on the correct capacity and configuration of air conditioners suitable for each type of product, we help businesses maximize savings on operating costs and electricity consumption, delivering efficiency equivalent to investing in a state-of-the-art system. cold storage Fixed price, but with more flexible costs.
• 24/7 After-Sales Service and Warranty: We provide comprehensive and long-term maintenance for all products sold. With our extensive technical support network, Tan Long is always available to promptly assist in troubleshooting, ensuring uninterrupted cold chain supply for your goods and minimizing product damage risks.

With the motto "Quality creates reputation," the solution 20-foot refrigerated container Tan Long's products are the most reliable choice for your business's sustainable trade journey. We not only provide equipment, but also partner with you in optimizing preservation processes and enhancing the value of Vietnamese agricultural, aquatic, and pharmaceutical products on your path to reaching the international market.

Some frequently asked questions

How many tons of goods can a 20-foot refrigerated container hold?

The maximum load capacity of a 20-foot refrigerated container typically ranges from 21,000 kg to 28,000 kg, depending on the container's weight and the regulations of each country.

What is the equivalent volume (CBM) of a 20-foot refrigerated container?

The internal volume of a 20-foot refrigerated container typically ranges from 28 m³ to 30 m³.

How much electricity is needed to operate a refrigerated container?

A 20-foot refrigerated container typically uses a 3-phase, 380-460V, 50/60Hz power supply. The power consumption of a refrigerated container usually ranges from 7kW to 10kW.

Related pages

• Vietnam cold storage market 2026: potential and investment opportunities
• Fire safety for cold stores: TCVN regulations and optimal technical solutions
• How to install insulated panels: the correct process for walls and ceilings
• How to build a cold store: design and installation to industrial standards
• Tan Long industrial cold storage

Review & Expert Advice

Engineer Nguyen Toan Thinh (Technical Director)

With over 18 years of practical experience in directing, consulting, designing, and constructing heavy industrial refrigeration systems, ASRS automated warehouses, and IQF freezing systems across more than 29 major national projects.

👉 View expert's profile | 📞 Technical support hotline: 0933 357 058