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cold room panels exported to Mozambique

We exported 2*40GP cold room panels and freezer room panels to Mozamnique for a seafood factory.

200mm polyurethane sandwich panels for blast freezer, 150mm polyurathane sandwich panels for cold storage.

It’s convenient installation and good quality and performance.

cold room panels
Loading containers in our factory
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Do you know these cold room storage knowledges?

1, What is cold room?

Cold room is a building warehouse using refrigeration machine to reach a certain temperature and has insulation to hold the temperature.

2, Cold room classification:

  • According to the structure

◇ Civil engineering cold room building

◇ Steel structure cold room

◇ Mixed structure

  • According to the cold room usage

◇ Production type cold room used in food, meat, fish factory

◇ Distribution type cold room used for logistics

◇ Retail cold room used for supermarket

◇ Household cold room

  • According to the cold room scale

◇ Large cold storage over 10,000 tons

◇ Medium-sized cold storage 1000-10,000 tons

◇ Small cold storage less than 1000 tons

  • According to the cold room temperature

◇ High temperature cold room design temperature (-2~8°C)

◇ Medium temperature cold room design temperature (-10~-23°C)

◇ Low temperature cold room design temperature (-23~-30°C)

◇ Ultra-low temperature cold room design temperature (-30~-80°C)

  • According to the cold room goods

◇ Seafood and meat cold room

◇ Dairy and ice cream cold room

◇ Fruit and vegetables cold room

◇ Pharmaceutical and chemicals cold room

◇ Flower cold storage

3, Cold room Floor frost heave and protective measures

It is the frost heaving drum of the soil layer under the cold storage floor. The frost heaving phenomenon in the cold room is related to the thickness of the floor insulation layer, the movement of the freezing point isotherm, the migration of water in the soil, the soil quality and the water content. Although the cold room floor is covered with a certain thickness of insulation, it is not completely isolated from heat transfer. Floor frost heaving is also the biggest problem facing the cold room storage ground structure.

Ways to prevent floor frost heave

Overhead floor (direct and reliable, high cost)

Ventilation floor (with certain limitations)

Heating floor (cost saving, high construction requirements)

When the geological conditions of the multi-layer cold storage are poor, it is recommended to use the overhead floor. When better, the other methods can be considered. When the geological conditions of the single-layer cold storage are poor, it is recommended to use heating or ventilation floor. When the temperature is poor, the overhead floor can be considered.

4, Cold room refrigerant choice

◇Ammonia: the oldest in history, the best choice in the field of industrial refrigeration worldwide. Due to the characteristics of the ammonia system, it is generally used for centralized refrigeration, with a special machine room for large-scale refrigeration systems (more than 10,000 tons of cold storage). There is a trend toward miniaturization and modulation, with an emphasis on improving safety and reducing the amount of charging.

◇ Freon: It is widely used in cold storage to disperse refrigeration. It is suitable for small and medium-sized cold storage and large-scale cold storage with limited ammonia. For environmental protection, large-scale cold storage The Freon system should be avoided as much as possible.

◇ CO2: The cold storage application is mainly based on cascade system and loading system. The low-temperature field is more suitable for cascade. The high-temperature field is suitable for loading. The cascade system is more expensive than the traditional ammonia and Freon system.

5, Cold room defrosting ways

Hot-gas defrosting

Water defrosting

Electricity defrosting

6, Cold storage room mold removal ways

Molds generally grow in dark, damp areas and can withstand lower temperatures. Usually in the high temperature cold room, the situation is the most serious. The mold grows in the cold storage, and the spores fly everywhere, which pollutes the goods and products stored in the warehouse.

◇ Mechanical mold removal (manual cleaning and removal of moldy parts)

◇ Physical mold removal (using temperature, humidity, ultraviolet light, high frequency electricity and copper mesh filters)

◇ Chemical mold removal (carbon dioxide, bleaching powder, sodium fluoride, etc.)

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How to control and reduce the operating costs of cold storage?

As owner, we not only have to consider the construction and material costs of cold storage, also should consider the follow up operating costs of cold storage. It directly affects our cold storage effectiveness.

The keys to managing energy efficiency are reducing operational costs, during managing a cold storage warehouse, we should strictly control the energy costs from five parts “ice, frost, water, doors and lights”. Meanwhile using remote monitoring can have a significant impact on reducing energy, maintenance and overall operating costs. Here we only discuss it from how to correctly operate the refrigeration unit and evaporators and how to do the cold storage management.

1, Reasonably adjust the operating parameters of the refrigeration system to improve equipment efficiency.

According to actual cold storage temperature and goods conditions, adjusting system pressure and temperature parameters which can ensure the safety of machinery and storage products, fully utilize equipment efficiency, and save Water, electricity, oil, etc.

2,  Prevent evaporating temperature being too low, in common the temperature difference between evaporating temperature and cold storage temperature is 3-5℃.

When the temperature difference between the evaporating temperature and the cold storage temperature increases, the evaporating temperature will be too low, which will result in a decrease in the refrigeration coefficient and an increase in energy consumption. It is estimated that under the same conditions, when the evaporation temperature is lowered by 1℃, it will consume 1~2% more electricity. In addition, as the temperature difference increases, the dehumidification amount of the air cooler is increased, and the humidity of the cold storage warehouse is reduced, thereby causing an increase in dry food consumption and a decrease in food quality.

3, The refrigeration system is a sealed circulation system, keep the refrigerant circulating in the system is clean and free of impurities.

4, Timely remove the frosts on the evaporator and scales on the condenser.

The second importance is energy saving in the cold storage management.

The cold storage is a special building used for freezing and refrigerating foods and maintaining a certain low temperature. The floor, walls and roof are covered with a certain thickness of moisture-proof layer and insulation layer to reduce the introduction of external heat, and at the same time, in order to reduce the radiant heat of the sun, the surface of the exterior wall of the cold storage is generally painted white or light.

Since the cold storage building has the above characteristics, in addition to ensuring the building quality with strict heat insulation, sealing, sturdiness and frost resistance in design and construction, it should also be based on the characteristics of the cold storage in daily use management. Scientific management is implemented to ensure safe production, so as to achieve the purpose of prolonging the service life, reducing production costs, saving maintenance costs, and improving the economic benefits of enterprises.

1, Cold storage door should be closed tightly; Minimize the frequency door opening and door opening time.

2, Reasonable stacking to improve cold storage warehouse utilization

The utilization rate of the cold storage warehouse directly affects the economic benefits of the cold storage, the utilization rate is low, the cooling capacity of the unit weight is increased, and the dry consumption is increased, and the cost is increased. Therefore, strong packaging, shelves, etc. should be adopted, and the code height should be increased to improve the utilization of the warehouse. When the goods are not full, if the storage characteristics of the goods are the same or similar, and they do not affect each other, they can be mixed for a short time.

3, Cold storage warehouse lighting control

The lighting of the cold storage warehouse not only consumes electric energy, but also increases the heat in the warehouse. Therefore, the lighting of the warehouse should be controlled in groups according to the front, middle and back. After entering the warehouse, the staff should minimize the number and time of turning on the lights, and turn the lights off when go out.

Coordination between preservation and refrigeration technology is an important guarantee to reduce operating costs and improve enterprise efficiency. Adopting modern refrigeration technology and cold storage management will reduce the whole cold storage cost.

Atlascool-your cold room expert, more than 18 years refrigeration experience, from design to installation and maintenance service, we provide one stop cold storage service for your fresh life. Best practice for building cold storage and controlling energy saving.

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Cold storage room for fruits and vegetables in Tashkent, Uzbekistan

We finished a turn key cold storage room for fruits and vegetables to our customers in Tashkent, Uzbekistan.

The fruits and vegetables cold storage main equipments and materials:

1. Refrigeration system:

  1.1 Compressor: Bitzer, Copeland etc for choice,

  1.2 Condenser units: water cooled, air cooler or water and air cooled for choice.

  1.3 Evaporator: air cooler and grid evaporator for choice.

2. Electric system: Siemens and Schneider electric components or the other brand for choice.

3. Insulation panel, cold store panels:

  3.1 Material: polyurethane (PU), metal sheet.

  3.2 Density of PU: 38~40 kg/m3, 40~42kg/m3, 42~45kg/m3 for choice,

  3.3 Metal sheet: painted steel sheet, stainless steel sheet, aluminium steel sheet or mixed together for choice.

  3.4 Thickness of panel: 75mm, 100mm, 110mm, 150mm and 200mm for choice.

4. Cold store door:

  4.1 Sliding door and swing door for choice,

  4.1.1 Sliding door: manual opened, automatic opened for choice.

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Happy Mid Autumn Festivals to all customers

Atals cold room refrigeration company  sincerely wishes all my customers happy mid autumn festivals!

As a professional cold room manufacture for more than 18 years,
What can we manufacture?
Cold room, prefabricated cold room, Cold storage, industry cold storage, commercial cold storage;Freezer room, blast freezer room, walk in freezer room; Chiller room, small chiller room, chiller room;

We specialize in a full line of cold room refrigeration system solution including cold room panels&doors,Bitzer condensing unit, evaporators and condensers, blast freezer, ice making machines and refrigeration parts etc.


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Important Points of Banana Ripening Room

We supply banana ripening room and chambers.This type of cold room needs special temperature and ripening system, it required highly precise controlling for time.

Banana Ripening  Room design for bananas are important:

  1. Ripening rooms are very important for proper and efficient banana ripening; not just any room will suffice. A commercial ripening room must have the following:

  2. The room must be as air tight as possible to prevent ethylene loss.  This also prevents ethylene from entering unwanted areas (like other banana rooms or cold storage rooms holding ethylene-sensitive items).

  3. The room must be properly insulated to be able to control the temperature within a degree or so.

  4. The room must have adequate refrigeration capacity to accurately control pulp temperature.

  5. The room may need heating equipment in order to maintain proper room temperature in cold weather.

  6. The room must have adequate air circulation. Because uniform pulp temperatures throughout the load are essential for even ripening, the refrigerated air in the room must circulate at all times and uniformly throughout the load. For pressurized, forced air ripening rooms, this is typically inherent in the design.  However, for non-pressurized rooms, the boxes of bananas should be “air stacked”. That is, the boxes should be offset to allow the air to circulate among all the boxes since a non-pressurized room design will not pass air through boxes but around them.

Important reminders when banana ripening:

Monitor pulp temperatures closely:

  • Avoid “chilling” or “cooking” the fruit. Bananas are very sensitive to temperatures. Chilling will occur if the fruit is subject to temperatures below  (13°C) for several hours. It causes the peel to have a smoky, dull gray appearance. This may not show up for 18 to 24 hours after chilling occurs.

  • Cooked bananas result from excessively high temperatures; avoid temperatures above (18°C). The peel will have a brown to orange appearance. The fruit may be soft and have a short shelf life.

Maintain proper humidity levels:

  • For best ripening results, humidity should be 85 to 95%. If the humidity is too low, install a humidifier; wetting the floor of the room with water may increase the humidity but may cause sanitation issues.

When ready to ripen:

  • Determine how in how many days the room of bananas will be needed; raise pulp temperatures to at least (14°C).

  • Follow proven ripening schedules (like the one above) to adjust daily pulp temperatures.  No chart however can account for the unique differences in every load of bananas that will be ripened.  Frequent inspection of pulp softening and color change followed by temperature adjustments are vital to proper color achievement.

  • Apply 100 – 150 ppm ethylene for a minimum of 24 hours during the initial phase of the ripening cycle.  Fruit that is less mature may take an additional 24 hours of ethylene application.

Please note that there are reports of bananas responding better to higher ethylene levels.  While 100 ppm is the accepted standard to initiate ripening and ethylene production in bananas, there are some companies that require their ripening personnel to use 300+ ppm, saying that today’s banana ripens quicker and more uniformly with this higher level.  If you are having difficulty with bananas ripening properly, verifying current ethylene levels and then perhaps increasing them may resolve ripening issues. There are other factors that cause poor ripening, like inadequate humidity and immature fruit; ethylene is not always the culprit.

           When bananas are ripening, they release carbon dioxide (CO2) which will build up in a ripening room. The  production begins as the fruit ripens enters the “climacteric” phase, or the period when bananas release ethylene and and have an elevated rate of respiration (along with a great deal of other physiological changes). Respiration involves the uptake of oxygen, the release of carbon dioxide, and the breakdown of starches. Carbon dioxide concentrations above 1% (10,000 ppm) will retard ripening, delay the effects of ethylene and cause quality problems. Therefore, it is recommended to vent rooms by opening the doors for 20 minutes every 12 hours, after the first 24 hours of ripening. Other venting methods are by automatic fan (either timed or sensor-based) or “flow-though” (constant) ventilation.

Banana Shipping suggestions

  • Bananas bruise easily, green or ripe. Careful handling at all stages will reduce bruising and enable you to sell the bananas for more money.

  • Bananas also chill easily, as described above.  If shipping on a mixed load at temperatures lower than (12.8°C)

        Atlas Refrigeration Technology had been specializing in delivering turn key cold room solutions to worldwide customers for 18 years. We had provided many types of effective and states of the art cold rooms and freezer rooms to over 40 countries. We have been exporetd cold rooms to Swiss, Sweden, Australia, USA, Canada, New Zealand, Pakistan, Spain, India, Malaysia, Singapore, Malaysia, Philippines, South Africa, Argentina, Indonesia, Kenya, Algeria, Ghana, Guyana, Mongolia, Chile, Peru, Dubai, Poland, Mexico, Brazil, Lebanon, Thailand, Kazakhstan, Turkmenistan, Bangladesh, Colombia, Bahrain, Papua New Guinea and so on.

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How many factors affecting cold room quality?

What is a cold room?

A cold room is a large refrigerated room or building designed for storage of goods in an environment below the outdoor temperature. Products needing refrigeration include fruit, vegetables, seafood and meat.

When we want to build a cold room, we should consider two points, one is the high building materials quality, the other one is high effective of the cold room. Then how to reach the goal? Let’s learn how many factors affecting cold room quality?

1, Whole cold room includes polyurethane insualtion panels and refrigeration systems(compressor units, evaporators, condensers, control box and valves)etc. About the panels, there are camlock PU, PUR, PIR types.Camlock PU panels is very common and easy to produce, so it’s diffcult to check the quality.PUR and PIR sandwich panel is continuous production line, they have high requirements and standard for producing process and machinery. In china, fewer factories has this ability to produce PUR and PIR panels.Then you will check the panels insulation parameters, foam density, fire resistance, and color steel thickness, becasue all these factors will affect the price of panels.

2, The refrigeration system is the core of cold room, it includes compressor units,condensers,evaporators and valves. It also has accessories such as fans, pipes and instruments. The whole refrigeration system is a sealed circuit in which the refrigerant circulates, controlling the amount of supply and the number of times entering the evaporator as needed to achieve suitable low temperature conditions. The compressor is the heart of the refrigeration system, which pushes the refrigerant around the system. The choice of cold room refrigeration system is mainly focus on compressors and evaporators. So the quality of compressors and evaporators will affect the cold room quality.Usually we will choose world famous brand compressors like Bitzer, frascold, copeland etc and evaporators like Luve, Guentner, Kuba etc.
3, Surface areas and structures of the evaporator.Surface areas of evaporators, number of fans, cross-sections of fans, air flow of fans directly affect the humidity and temperature of the cold room.
4, High effective is also important for cold room. Usually we will ask a professional designer or consultant to help us. We have long years of experience in the refrigeration industry, our engineers are all graduated from refrigeration major in university. We will analyze your product load, geographic location and facility usage. Our many years of cold room refrigeration experience will help us design a economic refrigeration system to your product. “Produce” requires a different approach from “Pharmaceuticals” or “Poultry.” We will propose the right equipment to do the job, no more and no less.
5, Properties of the product and package to be put in cold room.The changes in the entire transpination density in the cold room have a great effect on the immediate cooling of the product.
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How to start a cold room business in ghana

Do you have food business? Do you want to be part of the food business but don’t know which way to go? Why not start your own cold room business and freeze your way to a profitable business.

What is a cold room?

cool room or cold room is a large refrigerated room or building designed for storage of goods in an environment below the outdoor temperature. Products needing refrigeration include fruit, vegetables, seafood and meat. Cold rooms are often located near shipping ports used for import/export of produce.

What is use of cold room?

Cold room can be used for storage of seafood, meat, dairy products, ice cream, fruit and vegetables etc. There are many cold room solutions.

Classification Temperature:

  1. 0 °C ~ + 22°C: Hallway, corridor, Mushroom Plant, Medicines Storage, Processing Room, Packing Room
  2. -5 °C ~ + 5 °C: Pre-Cooling, Keep Fresh,
  3. -10 °C ~ -20 °C: Freezer Storage
  4. -25 °C ~ -30 °C: Low Temperature Storage, Quick-Freeze
  5. -35 °C ~ -40 °C: Blast Freezer, Quick-Freeze

Steps to Start a Cold Room Business

1, Determine which industry or industries in your area need cold room and how much of these need s have already been supplied. Make a careful study on how to go about your plans and execute them. You can seek advice from other friends who are in the same business and get good ideas. Different foods needs different cold rooms, for example, there is special apple cold room, and special ripening room for bananas and mango.

2, Once you determine that you can make it, you can test run by starting small. For example you can build a small cold room in your house or exsiting warehouse. Firstly store small quantities foods, and it is running well, then you can consider how to make it bigger.

3, Your test run should give you an idea if you want to go on full scale or not with the cold room business.

4, Should you decide to continue, you can now try to secure a means to fund or finance your venture. You can choose to stick to your initial market base or expand to cover more. multi function cold rooms have different temperatures for different products. Now you can store many kinds of products. Or you can rent the empty cold rooms.

5, An important part of the business is marketing. You need to recognize your base market as well as your competitors. So who is your market? The first could be the fishermen who were your sole market during your testing phase. You can expand your market by selling what your customers are selling. You can not only store merchandise but also package them and then sell them depending on what the demand is. This way not all your eggs are stored in one basket and you remain in a competitive edge. So many customers choose to build duel temperature cold rooms. they will be used for fruits and vegetables, and also can be used for frozen fish and meat.

Why choose us?

Your Cold Room Expert

More than 18 years refrigeration experience

From design to installation&maintenance service , we provide one stop cold room solutions for your fresh life.

We offer a wide variety of services for your refrigeration needs. Whether you need to have us consult on your plans, design your refrigeration system, supply the materials and equipment, install the equipment, or perform maintenance and repair services, we have the skills, expertise, technology, and tools to make it happen.

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How to do installation and commissioning of refrigeration equipment in cold storage

1, Refrigeration equipment compressor unit assembling and installation-we are professional fabricated compressor rack factory over 20 years.

2, Refrigeration equipment evaporators installation

When selecting the hanging point position, firstly consider the best position for the air circulation, and then consider the direction of the cold storage structure.

The space between the evaporator and the cold room panel should be bigger than the thickness of the evaporator.

All the hangers of the evaporator should be fastened, and the bolts and hanging bolts should be closed with a sealant to prevent air leakage.

When the evaporator is too heavy, using a 4 or 5 angle iron to make the beam. The beam should span to another roof and wall panel to reduce the weight.

3, Refrigeration equipment piping installation technology

The diameter of copper pipe should strictly match with the interface diameter of compressor suction and exhaust valve. When the condenser and compressor are separated more than 3 meters, the pipe diameter should be increased.

Keep the distance between the condenser suction air side and the wall over 400mm, and keep the distance between the outlet and the obstacle more than 3 meters.

Discharge pipe and return pipe should have a certain slope. When the condenser position is higher than the compressor, the discharge pipe should be sloped to the condenser and a liquid ring should be installed at the compressor discharge mouth to prevent the gas cooling to liquid and returning to the mouth after compressor off.

The U-bend should be installed at the exit of the evaporator air return pipe. The air return pipe should be sloped toward the compressor to ensure oil return smoothly.

The expansion valve should be installed as close as possible to the evaporator. The solenoid valve should be installed horizontally. The valve body should be vertical and we should notice the direction of the liquid.

after the completion of the welding of the entire refrigeration system, to do airtight experiments, high-pressure side of nitrogen filling 1.8MP. The low-pressure side is filled with nitrogen 1.2MP. During filling, soapy water is used for leak detection. Carefully check the welding, flange and valve. The pressure is kept for 24 hours.

4, Electrical system installation

The selection of wire must have a safety factor. The temperature of the wire surface must not exceed 4 degrees during the compressor unit operating or evaporator defrosting .


5, Whole refrigeration equipment system commissioning

Check all valves in the refrigeration system if it is in the normal open state or not, especially the exhaust stop valve. Do not close it.

Open the cooling water valve of the condenser. If it is an air-cooled condenser, turn on the fans. Check that if the amount of water and the air flow rate meet the requirements or not.

the electrical control circuit should be tested separately in advance, we should pay attention to whether the power supply voltage is normal before starting.

Whether the oil surface of the compressor crankcase is in the normal position or not, it should generally be maintained at the horizontal centerline of the oil monitor.

Why choose us?

Your Cold Room Expert

More than 18 years refrigeration equipment experience

From design to installation&maintenance service , we provide one stop cold room solutions for your fresh life.

We offer a wide variety of services for your refrigeration needs. Whether you need to have us consult on your plans, design your refrigeration system, supply the materials and equipment, install the equipment, or perform maintenance and repair services, we have the skills, expertise, technology, and tools to make it happen.

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How to operate refrigeration equipment more energy&efficient?

To control and reduce the operating cost of cold storage, during the operating of refrigeration equipment, it is necessary to consider “oil, fluorine, water, and electricity”; it is necessary to reasonably adjust the operating parameters of the refrigeration system to increase the efficiency of the equipment. The evaporating pressure, temperature and condensing pressure of the refrigeration system are the main parameters, and are important basis for operation and adjustment. According to the actual conditions and system changes, the operating parameters are continuously adjusted and controlled to run under economically reasonable parameters, and the machine and products can be guaranteed. and increasing refrigeration equipment efficiency, and save water, electricity, oil and so on.

How to reduce the operating costs of cold storage?

1, prevent evaporation temperature is too low

When the temperature difference between the evaporation temperature and the room temperature increases, the evaporation temperature will be too low, which will result in a decrease in the coefficient of performance and an increase in energy consumption. It is estimated that with other conditions unchanged, when the evaporation temperature is reduced by 1°C, it will consume 1~2% more power. In addition, the increase in temperature difference will also increase the dehumidification capacity of the cooling fan, and the humidity in the cold storage will decrease, which will result in increased loss of moisture and decrease in food quality.

The reason of evaporation temperature is too low and the solution:

(1) The evaporator is too small

Design problem, or the actual products type is different from the design plan, and the heat load increases. For example, the cold storage of apples is intended to be used for storage instead of garlic sprouts. Since the harvest time of garlic sprouts in a production area is only a few days, it is impossible to achieve a daily purchase volume of 5% to 15% of the storage capacity as that of Apple, instead of filling up 3-5 days. Therefore, if the temperature should be lowered to the proper storage temperature in time, it can only be achieved by lowering the evaporation temperature. Increase evaporator evaporation area or replace evaporator.

(2) The compressor capacity is too large

When the cold storage load was reduced, the energy of the compressor was not reduced in time. The compressor of the cold storage is matched according to the maximum load of the refrigeration system, At most times, the load of the compressor is less than 50%. When the room temperature is reduced to a suitable storage temperature, the system load is greatly reduced. If a large machine is still turned on, a large horse-drawn cart is formed, and the temperature difference increases, and the power consumption increases. The number of compressors to be turned on or the number of cylinders to be operated should be reduced according to changes of cold storage load.

(3) The evaporator  not defrosting in time

The frosting of the evaporator coil causes the heat transfer coefficient to become smaller, the thermal resistance increases, the heat transfer effect is reduced, and the evaporation amount of the refrigerant is reduced. Under the condition that the compressor energy is constant, the evaporation pressure of the system will decrease, and the corresponding Evaporation temperature decreases, so should defrost in time.

(4) Lubricating oil in evaporator

The lubricating oil in the evaporator will form a layer of oil film on the wall of the evaporating coil, which will also reduce the heat transfer coefficient, increase the thermal resistance, reduce the heat transfer effect, reduce the evaporation amount of the refrigerant, and cause the evaporation pressure of the system to decrease. The corresponding evaporation temperature is reduced, so the system oil should be drained in time.

(5) The expansion valve is opening too small

When the expansion valve is opened too small, the amount of liquid supplied by the system is small. Under the condition that the energy of the compressor is not changed, the evaporation pressure is reduced, causing the evaporation temperature to decrease, and the opening degree of the expansion valve should be increased.