What is a Cold Room?-Miracle

It uses refrigeration equipment to create the right temperature and humidity in cold storage rooms, ensuring the right production and storage environment for agriculture and industry.

The main components of cold storage and walk-in coolers include

Condenser units
Evaporators
Cold storage panels
Cold storage doors
Cold storage control systems

Check the PDF of the Cold Room Equipment List, and get more details.

Check “Cold Room: A Complete Guide” to know how to choose the right cold room.

How Does a Cold Room Work?

Before understanding how a cold storage system works, you should first understand how the refrigeration system works. Please refer to the article “What is a Refrigeration Cycle?”.

A cold storage system requires an air cooler evaporator (cold room indoor unit), a condensing unit (cold room outdoor unit), and a cold storage control system.

The cold room outdoor unit (condensing unit) integrates a compressor, condenser, liquid receiver, solenoid valve, axial fan, and other components, and is the primary component for generating cold air.

The cold room indoor unit (evaporator unit) includes an expansion valve and evaporator. These are the primary components for absorbing heat from the cold storage.

The cold storage control system regulates the temperature and humidity of the cold storage and maintains operation within the specified temperature and humidity ranges.

In addition, stable operation of the cold storage refrigeration system requires a refrigeration ball valve, sight glass, rotalock valve, pressure switch, pressure regulator, accumulators, oil separators, filter driers, check valves, shut-off valves, solenoid valves, expansion valves, etc. Please check and understand more.

What are the Applications of the Cold Room

Cold Room for Food, Fruits, and Vegetables

The cold storage room is the main way to keep a low temperature to achieve fresh preservation for fruits and vegetables in modern life.

It is widely used for fruits and vegetables, dairy products, fresh eggs, and meat preservation. It can ensure the food remains at a low temperature.

Please check the food cold storage room get more details.

Mini Cold Room for Commercial

Solutions for Commercial Cold Room and Walk in Coolers

Solutions for Commercial Glass Doors Walk in Cooler

If your customer needs to install a cold storage facility in a limited space, what type of cold storage facility would you recommend?

A small cold storage, right?

As a cold storage distributor or wholesaler, you need to be able to meet your customers’ small cold storage needs at all times.

The scope of use of small cold storage is extensive. Mini cold storage can be used in restaurants, fresh supermarkets, vegetables, frozen food (frozen fish, frozen meat, cold drinks), medicine, etc.

Please check the mini cold room get more details.

Monoblock Cold Room for Walk-ins

Expensive transportation and installation, strict certification, and cumbersome customs import procedures? Let me help you solve these problems.

Miracle Monoblock Cold Room adopts modular production, which has the advantage of a small size.

In addition, we provide pre-installation services before shipment, so that you only need to connect the indoor unit and outdoor unit to operate the walk-in cold room after receiving it.

Please check the walk-in cooler cold room get more details.

Get the solutions for the commercial cold room and walk-in cooler.

What is the Temperature of Food Cold Room?

Food Cold Storage Temperature

As we all know, the best temperature for food preservation is 0℃~15℃, because under this temperature range.

It will reduce the pathogenic bacteria and the rotting rate of fruits, and it also slows down the respiratory metabolism of fruits, so as to prevent decay and extend the storage period.

Fruits and Vegetables Cold Storage Temperature

Different fruits and vegetables have different perfect storage temperatures; it’s better to store them separately.

The best storage temperature for cabbage, carrots, grapes, and apples is 0℃~2℃, for tomatoes, cucumbers, and lychee is around 10℃, for bananas, lemons, and pumpkins is around 13~15℃.

Check fruits and vegetables cold storage- A complete guide, get more details.

What are the Key Components of a Cold Room System?

Cold Room Condensing Unit(Outdoor unit)

Air Cooled Condensing Unit with Bitzer Compressor for Mushroom Cold Storage and Cultivation

Ice Cream Cold Room with Bitzer Compressort Condensing Unit

The main function of the refrigeration unit is to provide cooling air to the cold room system and maintain cold storage humidity.

It can be divided into air-cooled condensing units and water-cooled condensing units according to major categories.

Get more types of cold room condensing units.

Cold Room Condenser

The main function of the cold room condenser is to convert the high-temperature and high-pressure gaseous refrigerant into the medium-temperature and high-pressure liquid refrigerant.

In this process, the heat from the evaporator in the cold storage is dissipated outside the cold storage. Mainly composed of a condenser, a Condenser Coil, a shell, and a fan.

Get more types of refrigeration condensers.

Cold Room Evaporator(Indoor unit)

The main function of the Cold Room Evaporator is to provide a vaporization place for the medium-temperature and high-pressure liquid refrigerant in the refrigeration system to transform into a low-temperature and low-pressure gaseous refrigerant.

The process of converting the liquid refrigerant into a gaseous refrigerant absorbs the heat of the cold storage, and then the refrigerant acts as the heat transfer carrier, bringing the heat in the cold storage to the outside, thereby achieving cooling.

Get more types of cold room evaporators.

What Types of Refrigeration Units are in Cold Room Systems?

What Types of Cold Room Outdoor Units

Cold room outdoor unit with Copeland compressor

Copeland compressor models include the ZB series, ZSI series, and ZFI series. The temperature range is +10~-40 degrees Celsius.

It is suitable for mini cold storage, a walk-in cold room, and a small freezer. Check “cold room equipment list: a complete guide” to learn more about cold storage equipment.

Air-cooled condensing unit with Copeland compressor

Copeland scroll compressor model uses ZB series, suitable for a temperature range of +10~-15 degrees Celsius, suitable for R22, R404A refrigerant, suitable for mini cold storage walk-in cold room, and medium and high-temperature cold storage.

Monoblock cold room with monoblock refrigeration unit

The advantages of a monoblock condensing unit are saving on installation and transportation costs, and high cooling efficiency.

Cold room outdoor unit with Danfoss compressor

Danfoss compressor models include the MLM series and MLZ series, suitable for a temperature range of +10~-20 degrees Celsius, suitable for mini cold storage walk-in cold room and medium and high temperature cold storage.

Cold room outdoor unit with Horizontal compressor

The Cold Room Horizontal Condensing Unit is specially designed for glass door cold rooms, supermarket cold rooms, and kitchen cold rooms.

It features a low height and can be designed as a DC variable frequency unit.

Cold room outdoor unit with Bitzer compressor

BITZER piston compressor horsepower from 2HP to 50HP, suitable for a temperature range of +5~-30 degrees Celsius, the refrigerant is suitable for R22, R404A, R507, suitable for medium and low temperature cold storage.

Cold room outdoor unit with Screw compressor

A screw compressor is also called a refrigeration rack system. It is designed and manufactured specifically for large cold storage facilities. Miracle refrigeration racks offer both air-cooled and water-cooled refrigeration racks.

Your one-stop cold room outdoor unit supplier

Miracle cold room outdoor units have a variety of appearances to choose from, and can customize a unit suitable for your business according to the specific use in the cold storage. For more details, please contact the Miracle technical team.

What Types of Air Cooled Condensers

MCH-type air-cooled condenser

The total air volume range will be around 430 m³/h/h-21640m³/h, heat exchange range is around 0.7kw-60kw.

It applies to refrigerants like R22, R134a, R404a, and R407c, etc.

The air-cooled condenser is mainly used in conjunction with air-cooled units, as the heat dissipation devices of the air-cooled unit are used in small cold storage and medium-high temperature cold storage, for the cold storage and preservation of food.

MCU-type air-cooled condenser

MCU-type air-cooled condenser, also known as a box condenser, adopts a U-shaped Condenser Coil and is integrated with the unit.

It has good adaptability to areas with narrow spaces. The compressor is wrapped in an outer shell, which is good for the compressor.

The protection is better, the safety is higher, and the service life is longer.

MCU-type air-cooled condenser heat exchange range: 9 kW- 46 kW. The refrigerant has a wide range of applications.

It is often used in medium- and high-temperature cold storage and cold storage for keeping fresh vegetables and fruits.

MCV-type air-cooled condenser

The MCV-type air-cooled condenser adopts a V-line design, which occupies a small area and arranges more heat exchange areas in a small space.

The V-type design also condenses steam from top to bottom, which is consistent with the direction of gravity and is closest to the vertical Straight state.

MCV-type air-cooled condenser can also be integrated with the unit to save floor space to the greatest extent.

MCV-type air-cooled condenser heat exchange range 24kw-165kw, suitable for R22, R134a, R404a, and R407c refrigerants.

MCF air-cooled condenser

The MCF air-cooled condenser is designed for more flexible movement. It can be designed as a single outlet or multiple outlets to match the appropriate condenser according to the volume of the cold storage. Applicable refrigerants are R22, R134a, R404a, R407C, etc.

Better design and higher reliability will lead to better business.

These are all condenser types used in cold storage systems. If you are interested, don’t hesitate please contact us directly.

What Types of Cold Room Indoor Units

Ceiling-type evaporator unit(Cubic air cooler)

MED series evaporators are widely used in various forms of cold storage, such as fruit and vegetable cold storage, mini cold storage, small fresh flower cold storage, meat product cold storage, large data center heat dissipation, etc.

According to the temperature requirements of the use environment, the ceiling-type evaporator unit has three series of MEDL, MEDD, and MEDJ, which can be used according to different storage temperatures.

MEDL condenser is mainly suitable for fresh-keeping warehouses around 0℃;

MEDD condenser is mainly suitable for cold storage around -18℃;

MEDJ condensers are mainly suitable for quick-freezing warehouses below -25℃.

Dual Discharge Evaporator Unit

The MES Series dual-discharge air cooler is used for storage cooling equipment, like food operating and processing workshops. Air comes out from 2 sides; it is applicable to about 8℃ cold storage.

If the room temperature is below 8℃, need to install a defrosting heater.

Small Evaporator Unit(Angled evaporator).

A small evaporator unit is used for a small-sized refrigerator. It has different sizes for 1,2,3,4 fans.

It transmits heat quickly, lowers the temp of the freezer sharply, and makes the temperature in the refrigerator well-distributed.

How to Install Cold Storage?

Cold Room Business Analysis(Market, Technology, Equipment Analysis)?

Market analysis: along with the international society’s development, people’s living standards are constantly improving, and people are increasingly dependent on the individual needs of fresh fruits and vegetables; they also have new and high requirements for cold storage development and mode.

In the cold storage’s early development stage, it is often built in the food sales area, which is Market-oriented.

Through the cold storage industry and the cold chain market development, people have begun to use self-built cold storage to increase their income.

Therefore, it is feasible to start a cold storage business

Technology Analysis: The application of PLC automation control.

In recent years, due to the rapid development of electronic technology and the wide application of computer control, the market has put forward new requirements for the technical performance and reliability of the refrigeration compressor and refrigeration system in the electrical control part.

Due to the small size of PLC, Strong performance, high reliability, easy maintenance, easy to master, etc., quickly replace the traditional relay control devices, small-scale cold storage has a high degree of automatic control, can be unattended for 24 hours, with automatic alarms and automatic temperature and humidity adjustment functions, Greatly reduce personnel costs, coupled with the application of energy-saving facilities in the refrigeration system, all of this will make the small cold storage more and more popular.

Cold Storage Equipment Analysis

The standardized production of cold storage panels, doors, and refrigeration units, as well as the decreasing prices of cold storage equipment, have made the cold storage business much easier.

What Kind of Cold Storage is Right for Your Business?

If you are a cold storage wholesaler or distributor

Integrated cold storage units, small cold storage units, monoblock cold storage units, small cold storage units, and walk-in cold storage units are the best choices.

This is because the advantages of small cold storage units are very obvious, such as easy installation, high automation, low capital investment, and quick return on investment, leading to rapid development.

In addition, standardized, highly automated cold storage units are also the first choice for distributors, as this will reduce your operating costs and after-sales maintenance costs.

When selecting cold storage panels, choose new low-cost cold storage insulation materials as well as customized and standardized cold storage panels.

Check more types of cold storage

Cold Room Business FAQ

How to Make Money with a Cold Room?

To make money with cold storage, you must first understand what your market is like.

Is the cold storage rented out or does it own products? Is it putting agricultural products?

Or do businesses use some quick-frozen fresh meat or seafood products? Each choice directly leads to profitable results.

Of course, this profit result may also have something to do with the way you operate.

Objective analysis. As people’s living standards improve, people can taste agricultural and sideline products such as fruits, vegetables, meat, and aquatic products from different countries at any time.

After the agricultural and sideline products from other places arrive at their destinations, they need to be stored in cold storage.

The profit is high, and the profit cycle is long. At the same time, the shelf life of cold storage is very long. It can take decades to build cold storage.

Therefore, the cold storage rental method is relatively safe for making money in a Long-term business.

At the same time, the shelf life of cold storage is very long. It can take decades to build cold storage. Therefore, the cold storage rental method is relatively safe for making money in a Long-term business.

The occupancy rate cannot be less than 50%

The occupancy rate of cold storage must not be lower than 50%; otherwise, there will be a loss of money.

New entrants can increase their visibility by reducing rental prices and using other promotional methods to increase the rental rate of cold storage.

Open 24 hours

At present, most cold storage rental service centers are not operating 24 hours a day.

However, most of the goods are transported by road, and there are many uncertain factors, so most of the time, the service center can only arrive after getting off work.

Therefore, many goods cannot enter the cold storage in time.

Therefore, 24-hour business services can be launched when circumstances permit.

How to retain customers?

How to Build a Rental Cold Room?

If you want to build cold storage for rent, you can make money from the rent. And the monthly rent is fixed. Your rent income is related to the area, location, built-in equipment, and services provided by your cold storage.

How to find your customers?

First of all, you have to operate the cold storage business according to customer needs. Do you have to consider who needs cold storage to store items? Where can I find these customers? How can we bring these customers to the cold storage to store items?

Fruits need to be stored in cold storage. Find people who grow fruits and run fruit businesses, introduce them to building their own cold storage, and let them store in cold storage at preferential prices.

Generally, the meat products business also needs cold storage.

For example, businesses that operate chicken, fish, and meat have this demand. If you take the initiative to solve their needs, your cold storage business will thrive.

Those who do seafood business need cold storage.

The cold storage can store seafood products such as kelp, hairtail, and shrimp. According to customer needs, we do cold storage business.

Vegetables such as potatoes and garlic moss also need to be stored in cold storage at low temperatures.

Find the people who have such a large number of sources are your cold storage customers.

In summer, refrigeration is needed to store ice cream. Cold storage can store a large amount of ice cream, thereby effectively avoiding wholesalers’ layer-by-layer wholesale, leading to the melting of ice cream, and ice cream storage is most dependent on cold storage.

Retain customers with a free rental policy.

In the early stage of cold storage, in order to attract customers, you can launch a promotional activity.

During the peak holiday period, all businesses that have worked with you for more than half a year can enjoy a free day of free use of cold storage.

This is great news for businesses because they can earn 2 times more profit during the holidays. With reasonable promotion methods, you can get quite a lot of customers

How to use Rental Management Software?

Traditional cold storage companies often install inventory management software, but frequently overlook lease management software, which makes the original simple leasing process cumbersome and also increases expenditure on human resources.

Choosing a good leasing management Software can make cold storage leasing easier to promote and retain customers, while also saving personnel expenses and offering the best of both worlds.

What is a Cold Room and Walk-in Cooler?