2019年5月8日星期三

Cold Room Condensing Unit Refrigeration


Cold Room Condensing Unit Refrigeration


Cold room condensing unit combines the latest compressor technology which has the characteristics of variable speed fan motor control, large condenser coils, vapor injection which can deliver high efficiency, reliability, easy installation and sound performance, etc. It is specially designed and manufactured to reduce installation and maintenance costs. The cold room condensing unit is more efficient and less noise impact for neighborhood. Our condensing units have various designs and come in many sizes ranging from small household appliance units to very large industrial units. They are excellent suited for typical cold room service and retail applications. Now we are going to introduce the condensing unit with Copeland compressor.


Definition of Cold Room Condensing Unit with Copeland Compressor

Cold room condensing unit refrigeration is the core part of the cold room system. It is the important component for heat radiation of cold room.

What the most important in the condensing unit is compressor. It is called the heart of the cooling system. Compressor provides the power for the whole cold room, it makes the refrigerant cycling in the cooling system then makes the refrigeration happen.

There are many kinds of compressor can be chosen, today we will talk about the Copeland scroll compressor. Copeland is the brand of Emerson company in USA. It is famous all over the world. Copeland Scroll technology remains at the forefront of HVACR applications with its superior efficiency, reliability, ease of installation, horsepower capacity range and options in low, medium and extended-medium temperature equipment.

* Achieving energy-efficiency and sustainability goals

* Complying with food safety and environmental regulations

* Increasing efficiency, creating consistent temperatures and less humidity

* Integrating with lot technologies and building management systems

* Establishing reliable performance and affability



The condenser of condensing unit is L-shape condenser, it has a small volume but a big area so that the heat can be spread out efficiently. So the shape of this condensing unit will be box type.

*Beautiful shape

*Small volume, and it can be hinged on the wall
The Role of Condensing Unit with Copeland Compressor

As mentioned above, condensing unit is the core part of the cooling system to keep cold room system in controlled temperature.

1. Wide capacity range

Conditioning and refrigeration applications in fractional to large-horsepower capacities from 34 to 120 HP, only Copeland Scroll meets the full specifications for today’s diverse applications.

2.Technology leader in condensing unit industry

Since its introduction in 1987, Copeland Scroll has set the standard in compression technology. From modulation technologies, liquid and vapor-injection, low condensing operation to on board electronic diagnostics, compatibility with low-GWP alternative and natural refrigerants, the Copeland Scroll platform continues to lead the industry in performance-enhancing innovations.



3.Superior reliability and energy-efficiency

At the end of the day, what matters most is reliable performance and energy-efficiency. With 70 percent fewer moving parts and a simple internal suction and discharge method, Copeland Scroll delivers reliable, energy-efficient performance, year after year. Its compact and lightweight design allows to be integrated in applications where space is limited, without ever sacrificing performance or efficiency.

4. Expert distribution network and support

As the standard in scroll compression technology, Copeland Scroll is backed by a wholesaler network comprised of 850 Copeland-authorized locations with more than 340 certified Copeland technical specialists on staff. Since Copeland Scroll is manufactured in the U.S., when you need customer service, product support or availability, representatives from American base of operations can quickly deliver the compressor you need.

5.Product development expertise

When you choose Copeland Scroll compressors, you are also partnering with Emerson and gaining access to our extensive capabilities to support your product development efforts, including application engineering, design, testing, certification services, or app development.


About OnlyKem

OnlyKem Technology Co., Ltd is the leading cold room and refrigeration unit designer, manufacturer and exporter dedicated in supplying finest quality cold room solutions to worldwide customers. With over 20 professional cold room experts and 8,000 square meters factory. Our innovative, high quality products and solutions include Cold Room, Freezer Room, Unit Cooler, Condensing Unit, Cold Room Door and PU Panel, etc.. Product innovation and customer satisfaction are our long term commitment to all our partners. OnlyKem had been always worked hard to become the leader in providing customized cold storage solution to meet your refrigeration demands since its foundation in 2002. Hope to be your cold storage partners.

In recent years, we have been keeping on investing in technological innovation, integrated cold room design and modular customization, remote monitor and control system. All the safe and efficient operation of cold rooms in milk factory, slaughter factory, supermarkets, food shops or restaurants can be satisfied with our customized solutions by our professional staffs and solid technologies.

We had provided many types of effective and states of the art cold rooms to over 45 countries. Our customers are from Swiss, Sweden, Australia, USA, Canada, New Zealand, Japan, 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, etc.

Any requirement please do not hesitate to ask us. Hope we could serve you soon!

Walk in Cooler Refrigeration Unit


Walk in Cooler Refrigeration Unit


Walk in cooler refrigeration unit is an essential component for cold room. The walk in cooler refrigeration unit can keep the cold room temperature between -15 degree to 10 degree. Cold room is the basic facility of restaurants, hotels, supermarkets, and any other place that needs to store fresh, frozen, or pre-cooled food products. These walk-in cold room has enclosed, refrigerated storage spaces generally smaller than 3000 square feet and can be used for things such as storing perishable food items or packaging food.









Walk-in coolers are often used as medium-term cold storage facility which are equipped with standard walk in cooler refrigeration units acting as short-term storage and refrigerated warehouses acting as long-term storage. Just like any refrigeration system, walk-in coolers use an evaporator inside the unit and a condenser outside the unit to move heat outside, thus cooling the inside.

Refrigeration is important for maintaining a proper, unbroken cold chain. Using dairy as an example, after the cows are milked, their milk is pasteurized and rapidly chilled. Once the milk has been chilled, it must be maintained at that low temperature from the farm to the grocery store, including during bottling and shipping. If the cold chain is broken, bacteria or fungus can grow, making the food unsafe for human consumption. The United States Department of Agriculture requires that business-owned refrigeration systems have an internal temperature of 40°F or below for refrigerated food and 0°F for frozen food. Businesses operating refrigerators or freezers above these temperatures face fines and other penalties, so maintaining a reliable temperature is imperative. One of the most popular types of business-owned refrigeration systems is the walk in cooler.


Indoor and Outdoor Walk in Cooler Refrigeration Unit

When it comes to walk in coolers, it’s very important to choose a refrigeration system that works best for your cold room. Since we offer models with different BTUs and KMs, as well as units designed for indoor or outdoor use, you’ll be sure to find the unit you need for the size and location of your walk in cooler.

Walk in cooler refrigeration unit have two main parts, indoor unit and out door unit. Indoor unit also called air cooler or evaporator, out door unit also called condensing unit.

When it comes to walk in cooler refrigeration unit , which part is be most concern? Compressor, yes. Our company mainly us Germany Bitzer compressor and American Copeland compressor. Different compressor have its own advantage. Except compressor, which part also very important? Yes, the coil of indoor unit and outdoor unit. Coil, also called evaporator, it was composed by copper pipe and aluminum fin.


Refrigeration Cycle System

The refrigeration cycle for walk in cooler refrigeration unit is exactly the same as residential air conditioning system. However, the operation of the physical component is slightly different. Walk in cooler refrigeration unit system is controlled by a close on rise in temperature thermostat. You will find either a mechanical type with a sensing bulb or a digital thermostat with a thermistor. Most of the walk in coolers that require repair will be older and may have been retrofitted with a digital thermostat. The thermostat of the walk-in cooler determines the air temperature within it. When the temperature rises above the level of the thermostat, the condenser unit turns on to start a new cooling cycle. The unit’s fans pull air into the unit and then over the condenser’s coils.



The coolant within the coils pulls the heat from the air as it passes over. The cooled air then continues to move out the back of the unit, cooler than it was when it first entered. As the fans continue to blow air over the condenser, the air temperature within the walk in cooler will lower until it is once again below the level set by the thermostat. The coolant within the condenser coils will be continually pumped during the cooling cycle. This ensures that the coolant does not heat up too much before being given a chance to cool down again.



Why choose us?

OnlyKem can supply the whole set of walk in cooler refrigeration unit, include indoor unit, outdoor unit and control panel etc. Our refrigeration unit have following feature:
Temperature allow customized.
Defrosting system allow customized.
Brand accessories and long time service.
Beautiful appearance and high quality.

Just contact with us to get more information about the walk in cooler refrigeration unit.

Cebu logistics cold storage in Philippine


Cebu logistics cold storage in Philippine


Logistics cold storage room is a large-scale cold storage facility that can integrate walk in cooler, walk in freezer and blast freezer room as the multifunctional cold storage solution, its main storage types include food, non-staple food, aquatic products, dairy products, fruits and vegetables, meat, followers, drug, and dry goods, etc. The logistics cold storage room can provide full rent, zero rent, and package services. With the development of modern economy, the logistics are featuring quick, accurate, small-lot characteristics. The original cold storage purpose cold room can not meet the modern logistics requirements. Instead the multipurpose modern logistics cold room are developing fast, logistics cold storage is playing a more important role now.








Features of Logistics Cold Storage
Our refrigeration system design of logistics cold storage is more environmentally friendly and energy efficient. The cold storage temperature control range is wide, the choice of cooling device, layout and floor design are in line with the cold storage requirements of different commodities. The cold room temperature automatic monitoring device is also in a good position.
Built-in low temperature corridor, closed platform, electric driven cold storage door, anti-collision flexible sealant and platform height adjustment device are integrated together to realize the door to door loading and unloading. so it is more energy efficient and convenient due to different configurations such as lifting door, sliding door and door seal and platform.
Due to the high frequency and large capacity of the goods, a special walk-in corridor should be set up with a temperature control of 0 ℃~ 7 ℃.
A good Internet system achieves good traceability and cloud services, making logistics cold chain distribution management scientific.Such as PLC control.
Pallet racking and shelving operation utilized to realize cargo first in first out management which improves storage quality and decreases goods loss.

The multi-layer automatic cold storage room is managed by computer to realize automatic loading, docking, room temperature control, refrigeration equipment without anyone running, and can also provide cargo name, quantity, location, temperature data, storage cost and invoice at any time, thus reducing costs and labor to improve efficiency.


Logistics Cold Storage Construction Procedures

Logistics cold storage room is generally built in places where the land is relatively cheap but convenient to transport, and there will be no heavy pollution around. The land shall be flat, sturdy and dry. The floor is generally concrete. The door should be against wind direction and eastward to avoid pollution. The cold storage floor should be above the ground to prevent rainwater saturation.

Convenient transportation and connection with the market also need to be considered. The Logistics cold storage should be built in a shade place without frequent hot wind. The effective drainage around the cold room is very important. Underneath it should be insulated and kept warm and kept dry. Before the construction of the cold room, a complete three-phase power system should be prepared according to the voltage of the refrigeration equipment to be used.

Our logistics cold rooms have a variety of temperature functions freezing, refrigeration and environment to facilitate the storage of a wide range of goods.
Provide thermal insulation equipment for freezer, refrigeration, air conditioning and environmental storage facilities
Temperature monitoring and tracking system
Good layout is designed to improve the efficiency of cargo turnaround time


Cebu Logistics Cold Storage in Philippine

1. Project overview

The area is 6900 m2 which was designed based on 2500 tons of agricultural products and other agricultural cold storage, construction size is 25*70*9 m with 1.8*3 m electric sliding door.

2. Parallel unit with PLC intelligent control is used in refrigeration system
The careful piping design minimizes line pressure loss and maximizes unit efficiency.
Equipped with a high-efficiency main oil separator, it can mostly separate the lubricating oil from the compressor exhaust port, and effectively improve the heat exchanger efficiency.
Provide multi-suction branch control according to the needs, one unit can be used for multiple evaporation temperatures, effectively use the cooling temperature of each evaporation temperature, so that the system runs in the most energy-saving conditions.
When one of the compressors in the unit fails, the other compressors can continue to work normally without affecting the storage safety of all the goods, and can be repaired separately.
Automatic control of the entire cold storage system. Automatically balance the running time of each machine head, so that the unit life is extended by more than 30% compared with the single unit.
Famous brand accessories, such as Demark Danfoss, Germany Bitzer, etc.

We would like to provide you with more details about our logistics cold storage with condensing unit, unit cooler or other cooling systems, that is why we encourage you to contact us at any time.

2019年3月31日星期日

Walk in Cooler Condensing Unit



Walk in cooler #condensing_unit is one of our popular model for export, due to its small size, low energy consumption and simple installation, it is currently widely used for hotel, restaurant, supermarket, beer cave etc.. For walk in cooler condensing unit, we generally use Emerson, Tecumseh, Embraco, Maneurop brand compressor, low noise and small volume are the top advantage of this type of compressor.

There have several types for walk in cooler condensing unit, including open type, box type and package type (monoblock unit ), please let me show you one by one.








Performance of Walk in Cooler Condensing Unit

Open type(also called indoor unit): Emerson Copeland and Tecumseh are the most popular brands for application.
H model air/water cooled condenser, can be customized as your environment
Hydrophilic foil fins, anti-corrosion
Compact design, save installation space
Scroll compressor, strong resistance to liquid slamming
Low noise
Cost-effective
Good heat dissipation function
Color can be customized
Including solenoid valve, suction accumulator, oil separator

Box type: there are 2 models for walk in cooler condensing unit, one is based on Europe design, another is used air condition box. We accept OEM design with your logo and specification label on the condensing unit.


Variable speed fan motor control, large condenser coils
Strong steel shellthat can be installed outside
Reasonable internal pipeline design
Slim profile, lightweight design
Wall-mount option
With its best-in-class energy efficiencies, ultra-low sound levels
Superior diagnostics and built-in protection

Monoblock unit(Packaged refrigeration units): combines both refrigeration technologies and traditional solutions, it will be the best choice if your space is very limited; For walk in cooler condensing unit in OnlyKem, we have 2 brands monoblock unit, Spain KIDE brand and OnlyKem brand. Every unit has been fully tested in factory to guarantee an optimal and non-stopped performance under the most severe conditions.
Featuring a very compact design
A high degree of robustness
Low weight and a minimum refrigerant load
Thermostatic expansion valve
Hot gas defrosting with evaporator temperature control
The structure and body are built in Pre-coated galvanized steel shell and polyester paint
Low refrigerant load, less than 2.5 kg
Pre-charged with refrigerant
Expansion by thermostatic valve
High and low pressure control
Auto evaporation of defrosting water


Specifications of Walk in Cooler Condensing Unit

Condensing unit with Emerson Copeland compressor
Condensing unit Compressor Condenser Connector Dimension
Model Model Qty of fan Diameter (Φmm) Air flow (m3/h) Fan power (w) Suction (mm) Liquid (mm) L W H
OKM02B ZB15KQE 1 400 3490 1*200 16 10 620 650 560
OKM03B ZB21KQE 2 350 2350*2 2*150 22 12 960 680 510
OKM04B ZB29KQE 2 400 3490*2 2*200 22 12 1060 680 720
OKM05B ZB38KQE 2 400 3490*2 2*200 22 12 1300 750 670
OKM06B ZB45KQE 2 400 3490*2 2*200 28 12 1300 750 770
OKM07B ZB48KQE 2 450 4900*2 2*250 28 16 1300 750 870
OKM09B ZB66KQE 2 450 4900*2 2*250 28 16 1280 710 910
OKM10B ZB76KQE 2 450 4900*2 2*250 28 16 1280 710 910
OKM15B ZB114KQE 4 400 3490*2 4*200 35 22 1280 750 1460



KIDE brand Monoblock unit
Series Model Capacity Volts Compressor Current Kg
W V HP kW A
0℃ 100 OKM1001M 833 230 1/3 0.25 3.1 56
OKM1002M 1011 230 1/2 0.4 4.8 58
OKM1003M 1252 230 1/2 0.4 3.7 59
OKM1004M 1458 230 5/8 0.5 4.2 60
200 OKM2005M 1721 230 7/8 0.65 4.7 85
OKM2006M 1976 230 1 0.7 6 88
OKM2007M 2223 400 1 1/2 1.1 3 90
300 OKM3008M 2743 400 1 3/4 1.3 3.1 98
OKM3009M 3712 400 2 1.5 3.9 100
400 OKM4010M 4314 400 2 1/4 1.65 4.2 110
OKM4011M 5059 400 3 2.2 4.8 112
500 OKM5012M 5777 400 3 1/2 2.6 5.7 115
OKM5013M 6664 400 4 2.95 6.5 125



OnlyKem is the Chinese leading manufacturer for commercial and industrial walk in cooler condensing unit, working throughout more than 30 countries. We were born in 2008 as a joint venture project of leading companies in the cooling industry, with more than 30 years’ experience in developing refrigeration equipment.

OnlyKem’s team has valuable experience in relevant departments, focusing on the development and manufacture of a series of self-contained compact and split units for commercial and industrial refrigeration. Our mission is to provide our customers with innovative, efficient and environment-friendly solutions for their facilities and cooling needs.

Vegetable Cold Rooms in Singapore



#Vegetable_cold_rooms are popular in some hot area, such as Southeast Asian countries, recently we just completed cold rooms project in Singapore, cold rooms ware used to keep vegetables for some days after processing and packed, then customer exports the vegetables to Japan or other countries. Our cold rooms could help customer achieve business income, hope you will be our next business partner in refrigeration line! Double win will be better!


Overview of Cold Room Project

Vegetables Processing Factory

Customer’s company major in vegetables planting and exporting, they have their own plant area, after harvest of vegetables, they process them and export to other countries. This factory includes some sectors as follows:
Tunnel freezer: it is used for fast freezing vegetables in very short time, it can keep high quality of vegetables.
Processing room: people mainly process and pack vegetables there.
Cold rooms: after packed the vegetables to be small boxes, keep those boxes in our cold rooms for some days, lastly customer exports them to other countries.

Cold Room
Quantity: six cold rooms, each three cold rooms connected together, total two lines cold rooms.
Dimension: each cold room: 12 m*9 m*6 m
Temperature: -20℃, keep frozen vegetables
Floor system: under cement, put XPS insulation panels, it achieved good insulation; Under floor insulation panels, put ventilation pipes, it could avoid frost in floor and prolong the lifetime; On the surface of cement, customer put epoxy resin layer, it is easy for cleaning, water-proof, and friction resistant.

PU Panel


Raw materials of panels: CFC-Free polyurethane panels, we already upgraded new raw materials, to meet more environment friendly standard, besides, it is also very clean to keep foods, like the vegetables.
PU panel thickness: 150 mm. We choose this thickness, because it is very hot ambient temperature in summer in Singapore, this thickness can reduce losing cold, in other words, it can save power consumption cost for customer.
Density: 44 kg/m3. Around this density, insulation is best.
Assemble of PU panels: cam-lock connections. Panels are marked with numbers, our engineer designs installation drawing with same numbers for customer, it is simple installation.

Sliding Doors
Type: manual sliding doors
Dimension: 2.5 m(width)*2.5 m(height), it is enough space to enter forklift.
Door heater: included, anti-frost.
Door accessories: door handle, locks, slide racks, door opener, escape device are stainless steel; Door frame, slide rails are aluminum.



Evaporating Cooled Unit

From the feedback of our Singapore customer, it is very high ambient temperature in Summer, it can even reach 40℃, if we still choose air cooled unit, air is hot, it couldn’t be good heat exchange medium, so our engineer designed evaporating cooled condensing unit for them.
Good heat exchange performance with water
Easy and realizable on-line maintenance
Small floor space and low investment
Easy transportation and installation
Low operating cost and energy saving
Low fault rate
Slope collecting basin with convenient clean out



Compressor unit
Parallel system with original new Bitzer screw compressor
Integrated PLC control system: intelligent.
Automatic control system: adjust the number of working compressors automatically by the cooling capacity required in cold rooms.
Remote monitoring system: transnational debugging, online-service in the future, it is convenient and in-time after-sales service.
It is more energy saving than the single unit: because not all compressors keep working always, it can adjust automatically.



Why choose us?

OnlyKem Technology Co., Ltd. is the leading cold rooms and refrigeration unit designer, manufacturer and exporter dedicated in supplying finest quality cold rooms solutions to Worldwide customers. There are many projects in many different countries now, such as the USA, Canada, German, Australia, New Zealand, Mexico, African countries, Southeast Asia countries and so on. We have mature and advanced technology in refrigeration field, we have experienced engineers, OnlyKem aim to build our cold rooms in all countries of the World! Don’t worry about quality problems, don’t worry about solution problems, don’t worry about after-sales service system, don’t worry about warranty problems, just try to contact with us, we will have a pleasant communication!

Spiral Freezer from OnlyKem Brand



Spiral freezer is also called air blast freezer, IQF or tunnel freezer, it is different from ordinary cold storage rooms. Spiral freezer is mainly used to freeze a large number of content at short time. It can maintain the high quality of products, keep product’s texture, moisture and flavor throughout the entire freezing process. There are typically 3 main blast freezer models: batch style freezer, tunnel freezer and spiral freezer models which are most used in the food industry.









Tunnel freezers have been used in large scale production lines for decades. The base design of the air based tunnel freezer has stayed, for the most part, un-changed. With the main concept of it still being inputting the product in one side and extracting the frozen product at the end. This process enables enterprises to freeze continuously for a long time. Compared with conventional batch freezing, the whole process uses less labor.
Features of Spiral Freezer
The 360° freezing ensures that the entire surface of the content will be frozen in a faster and more effective way.
The frozen contents will maintain the original freshness, texture and flavor of the products frozen in the spiral freezer every time.
No ice build up for continuous use and easy clean up process.
Continuous freezing.
Our spiral freezer allows customization.

The following are the specifications of 1000 kg/h spiral freezer for baking products (fresh or standard baking products).






Specification of Spiral Freezer
Belt width: 850 mm, effective width: 780 mm
Layer: 17, height of each layer: 200 mm
Spiral diameter: 3200 mm
Freezer room temperature: -35℃
In feed temperature: +15°C
Core temperature of out feed: -18℃
Frozen time: 30-90 Min
Cooling capacity: 130 Kw(-42℃/+35℃)
Refrigerant: R404A
Parameters of Spiral Freezer
Conveyor belt width: 850 mm, effective width: 780 mm
Material: SUS 304 spring hard wire 1.5 mm
Wear rod: Plunger 5 mm, cap bead hot press forming, fixed by welding method
Conveyor belt link: The thickness of the links on both sides is 3 mm, and the left and right baffles are 15 mm high. SUS 304
Conveyor belt mesh: The center distance of the mesh is 9 mm; Can be placed directly on the mesh belt to freeze
Spiral layers: 17 layers; Height between layers: 200 mm (net height 160 mm)
In feed and out feed time: 30-90 min
Conveyor belt moving: Chain drive, frequency control
Feed rack: In feed 1.5 m; Out feed 0.5 m



You could store seasonal items year round with new freezing technologies, it gives you the opportunity to expand all parts of your business into new markets and increase production without worrying about increased inventory waste. The frozen product will retain its original flavor and texture throughout the storage period, whether for one month or one year.

With spiral freezing technology, you could freeze most of the products while maintaining their original freshness. With our screw and tunnel chiller production lines, you will be able to make new product lines to store longer, to reduce inventory shortages and waste.

We would like to provide you with more details about our spiral freezers, tunnel freezers, cold rooms with condensing unit, unit cooler or other cooling systems, that is why we encourage you to contact us at any time.

2019年2月21日星期四

Chiller Room for Sale

Chiller Room for Sale

Chiller Room for Sale is widely used to store all kinds of fruits. Deterioration of fruits during storage depends largely on chiller room temperature. One way to slow down this change and so increase the length of time fruits can be stored, is by lowering the temperature to an appropriate level. It must be remembered that if the temperature is too low the produce will be damaged and also that as soon as the produce leaves the cold store, deterioration starts again and often at a faster rate.



It is essential that fruits are not damaged during harvest and that they are kept clean. Damaged and bruised produce have much shorter storage lives and very poor appearance after storage. Dirty produce can introduce pests and mold into the chiller room for sale.

The produce should be harvested carefully using a sharp stainless-steel knife. The fruits should not be placed on the ground where they could pick up dirt. Either a clean harvesting basket or clean mats should be used.

It is essential that the fruits are harvested at the correct harvesting time.



If the produce is dirty it should be cleaned before fruit chiller room. The water used has to be kept clean or fungus spores will be spread throughout the produce.

Some fruit need their outer leaves removed before storage. However, usually it is better to leave the leaves on during storage to reduce moisture loss, and then remove them before sale.

Dipping the produce in cool water to remove field heat can reduce the energy requirements of the store. However, this can spread fungus spores throughout the produce. A suitable alternative is to pick the produce either early in the morning when it is cool or late in the evening and leave it overnight to cool down.
Temperature

All fruits have a “critical temperature” below which undesirable and irreversible reactions or “chill damage” takes place. The fruit chiller room temperature always has to be above this critical temperature. One has to be careful that even though the thermostat is set at a temperature above the critical temperature, the thermostatic oscillation in temperature does not result in storage temperature falling below the critical temperature. Even 0.5°C below the critical temperature can result in chill damage.


Storage conditions

There are basically three groups of fruit: those stored at 0 – 4°C; those stored at 4 – 8°C; and those that require a storage temperature above 8°C. It is often more convenient to concentrate on one of these groups.

Relative humidity
For most produce, a high but not saturated, relative humidity is required, for example, 85 – 95%. There is always some moisture loss during cold storage but excessive moisture loss is a problem. It is essential that the relative humidity is kept above 85%. This can be done by:
• Allowing the produce to reach storage temperature and then covering in plastic.
• Sprinkling the produce with water, this should be done before storage since if the vegetables are sprinkled during storage condensation occurs at the refrigeration unit.
Packing system

A packing system is required so that the produce can be loaded and unloaded easily and safely. This can be a system using crates that can be stacked or a more complicated system using racks and trays. It is important that the crates are small enough to be moved easily when full of vegetables, easily and safely stacked, strong enough to hold the weight of the other crates. It is essential that the airflow is not restricted, therefore a two foot gap should be left between the walls and the crates and three foot gap left between the crates, the ceiling and refrigeration units.


Fruit Chiller Room for Sale

There are PUF panel, refrigeration unit, unit cooler and other components for fruit chiller room.

OnlyKem’s chiller room panels not only prolong the life of your products, but will also save you money, as they’ll reduce your energy usage. It can be expensive to retain temperatures for fruit chiller room. OnlyKem PUF panels provide R-values of up to 50, enabling you to retain the temperature you need to cool your fruit without requiring your chilling equipment to perform as hard or as long. You’ll see this difference reflected in your energy bills throughout the year.

We will choose Copeland or Bitzer compressor for your condensing unit of fruit chiller room for sale. The function of the compressor in the fruit chiller room is to suck in the vaporized refrigerant from the evaporator by the movement of the piston, pressurize the sucked gas into a high pressure body and enter the air cooled condenser, and suck heat with cold water or wind, so that the high pressure gas condenses into a liquid and enters the air reservoir. The suction and extrusion of the compressor are performed simultaneously. Between the compressor and the expansion valve is a high pressure part, and only the high pressure can maintain the refrigerant in a liquid state.

2019年1月31日星期四

Berry Cooler Room for Sale in USA


Berry Cooler Room for Sale in USA

Berry Cooler Room is suitable for perishable fruits storage which addresses the problem of post harvest losses adequately. It becomes very popular around the seaside in USA nowadays. Our successful installed berry cooler room further validates the vast refrigeration market in USA.

Berry Cooler Room for Sale in USA
Berry Cooler Room for Sale in USA


Most American division has a continental climate and the South has a subtropical climate. Temperature varies greatly between the central and Northern plains. The average temperature in Chicago in January is – 3℃, in July it is 24℃, in the Gulf Coast it is 11℃ in January and 28℃ in July.
Why does Berries need cooler room to keep?


Berries are fruits with high moisture content and pulpy pulp such as grapes, red cherries, strawberries, gooseberries, blueberries, they start to deteriorate as soon as they are harvested because they are cut off from their source of water and nutrition. They lose weight, texture, flavor, nutritional value and appeal. Cooling significantly slows down the rate of deterioration, thereby increasing the storage life of the produce.


Therefore, we need to choose cooler room to store them, in order to reduce the spoilage and deterioration of berries,


Berry Cooler Room for Sale in USA
Berry Cooler Room for Sale in USA


How to keep berry in cooler room?


Berry Cooler Room is installed in major food production and consumption centers (in markets and farms), farmers put their product in clean plastic crates, these plastic crates are stacked inside the cooler room. The berry cooler room can extend the freshness of berries, vegetables and other perishable food up to 3-25 days.


The wall of Berry Cooler Room is made of high quality polyurethane material. High-pressure foaming technology can produce PU sandwich panel of different lengths and specifications to meet the needs of different customers. In order to achieve higher standards, our factory is constantly carrying out technological innovation.


Next, let’s show you the details of the project of OnlyKem Berry Cooler Room in USA.
The details of our Berry cooler room in USA
Berry Cooler Room for Sale in USA
Berry Cooler Room for Sale in USA
Berry Cooler Room for Sale in USA
Berry Cooler Room for Sale in USA


Cooler room size: 4 m(Length)*3.5 m(Width)*3 m(Height)

Temperature: 0~+5 degree

Voltage: 220v/60Hz/3Ph


1.PU panel
Wall, roof and floor panel: Polyurethane panel tough groove dry joint with cam lock
Thickness: 100 mm
Color: White with OnlyKem film
Width: 960 mm, 1000 mm
Length:According to customer requirement, the max length is 1190 mm
Density: 44(kg/m3)


2. Sliding door
Size: 1.5*2 m for Berry Cooler Room, the size can be customized
Sliding door built-in metal frame
The edge of the door frame is provided with a low temperature resistant sealing strip
Stainless steel hinge and door lock
Door frame with built-in cam-lock
Use stainless steel rails, stainless steel screw bolt


Berry Cooler Room for Sale in USA
Berry Cooler Room for Sale in USA



3.Refrigeration systems


Copeland Condensing unit is the optimized combination of efficiency, reliability, easy installation and small noise. In order to reduce the cost of installation and maintenance, we optimize its design and production.
New generation of condensing unit with Ozone friendly refrigerants, R404a
Designed for ambient temperature of up to 52℃
High pressure safety cut off with manual reset
Axial fan motor, high air flow with low noise
Power: 3Hp; Model: ZB21KQE
Air cooled condensing unit, high performance and convenient
Over 363 PSI dry nitrogen gas pressure test after completion of the piping circuit, no leakage
Axial fan motor, high air flow with low
Berry Cooler Room Management in USA
Berries are piled up in a certain form, with stones or sleepers underneath. The direction of the stack should be consistent with the direction of the wind in the storehouse.
In order to make the air flow in the cooler room, the stacking code should not be too crowded, the stack and wall stack should be kept about 1 meter. There should be about 80 cm between the top of the stack and the ceiling or ceiling duct, the distance between the stack and the evaporator should be kept at least 2 meters. The berries close to the evaporator or roof panel is liable to freezer damage.
In the same cooler room, it is best to store only one kind of berry and try to avoid mixed storage of different properties.


OnlyKem Technology Co.,Ltd. was founded in 2009, and we specialize in refrigeration industry. we believe that you could enjoy more fresh life with our cold room. We would like to achieve this dream with you together and help more and more people enjoy quality life.


We are professional, responsible and experienced, what are you hesitating about? Welcome to consult us! sale@coldroomplus.com.

2019年1月24日星期四

Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia


Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia


Bitzer Reciprocating Walk in Cooler Compressor is the widely used and famous condensing unit for cold room or freezer room, it has taken 40% market all over the world so far among the many compressor brands in the world.


For more than 80 years history, the BITZER bran has represented the highest quality, efficiency and reliability in the field of cold room indusyry. BITZER is the only company to produce all three primary types of compressor such as reciprocating, screw and scroll. With its environmental friendly solutions and innovative electronic condensing unit products, BITZER is driving the refrigeration unit and air-conditioning industry around the world.

Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia
Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia




Especially Bitzer Reciprocating Walk in Cooler Compressor, OnlyKem Technology has cooperated with Bitzer Corporation over 15 years. Moreover, OnlyKem acting as an Bitzer agent for more than 7 years. For Bitzer compressor, our main products is air cooled condensing unit, include indoor Bitzer reciprocating condensing unit, box type, etc..


The details specification includes Bitzer semi-hermetic reciprocating compressor (Germany brand), crankcase heater, vibration absorber, oil separator. Also includes air cooled condenser, axial fan, liquid receiver, high and low pressure switch, high pressure gauge. Low pressure gauge, sight glass, solenoid valve, dry filter, suction accumulator and electrical junction box.


There are several types for Bitzer Reciprocating Walk in Cooler Compressor.

1.Rack compressor unit

It is popular for big project, usually there are above 2 rooms, with one rack compressor, it has many advantages.


1.1 Power saving: during operation, we design machines according to the biggest cooling capacity, it is beginning of loading moment and during maintain moment, it just needs 60% power. So at this moment, only part of the compressor work is needed, it will save a lot of electricity.


1.2 All system are under automatic PLC control: make whole system always operate with high performance. Based on the change of cool loading, adjusting the number of working compressor automatically, it will save 30% electric power than single condensing unit, so convenient and money saving!


1.3 Disaster-tolerant system: it is rack system, if one compressor is in maintenance, other compressors are still in operation, no any influence for complete project.

2. Indoor type condensing unit

Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia
Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia




Advantage of performance:


2.1 Intergrated modular assembly, factory pre-equipped refrigeration parts and electrical components, etc.

2.2 Compacted structure, easy to install and maintain.

2.3 Widely used in restaurants, shops, shopping malls, cold storage and other place.

2.4 Whole unit needs to install in a shell for accessories protection, in shadow, protect from direct sunshine and rain.

3.Box type Bitzer reciprocating compressor unit

Small cooling capacity is popular for walk in cooler, big one is popular in cold room project.

Advantage performance:

3.1 Interprated modular assembly, factory pre-equipped refrigeration parts and electrical components, etc.

3.2 Streamlined housing design, meet the aesthetic design of human nature, suitable for all kinds of workplaces.

3.3 Security, housing protects the internal electronic components, while preventing external damage.

3.4 High heat dissipation, cover a large area of windows to fully ensure the dissemination of the heat.

3.5 Widely used in restaurants, shops, shopping malls, cold storage and other places.

4. Trends in refrigeration units

With the social development, labor charge takes more and more percent in whole cost price. In order to conform this trend, we collect our engineers to analyze and design a solution for it.

OnlyKem Split commercial equipment are complete split compression cooling units, air cooled, governed by an intelligent control, the power supply is single phase or three phase depending on the equipment. Easy to install, easy to access the device interior, so that maintenance is simple, fast and safe. Its circuit is fully welded and ready for main connection, so it has high operational safety.

Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia
Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia




4.1 Reliable, efficient, environmentally friendly and easy to install intelligent refrigeration system.

4.2 All system use our own design control system, automatic digitized control, 0.1 deg C temperature precision.

4.3 Advanced electrical expansion valve, automatic adjustment for Freon flow, no need to adjust expansion valve by manual, reduce experience request for service staff.

4.4 Hot defrost, 25% power saving.

4.5 Intelligent alarm system, self-diagnosis during operation, with remote monitoring and maintenance module.

4.6 All machine already are charged Freon, convenient and money saving.

5. OnlyKem brand condensing unit

With growth in the living standard, people pursue the better taste and healthy. To meet their requirements, it is necessary to keep the fresh food more better and longer.

In the fridge, fruit, vegetables, dairy products and meat require constant temperatures of between 0 and 7°C. This is the only way to prevent a shorter shelf life and their flavour from deteriorating. BITZER compressors maintain these optimal, constantly safe cooling conditions.

Consider the situation in Australia, big land in the ocean, sea wind is very strong, and salty humidify fully, we do a special anti corrosion. For example, galvanized steel with powder painting, use well outside of room.

We had provided many types effective Bitzer Reciprocating Walk in Cooler Compressor to over 45 countries. OnlyKem brand condensing unit is widely used for milk cooling tanks, cold rooms, freezer rooms, fermentation rooms, canteens, restaurants, hospitals and other cold storage industry.
Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia
Bitzer Reciprocating Walk in Cooler Compressor Exported to Australia

2019年1月17日星期四

Cherry Walk in Coldroom for Sale in Chile

Cherry Walk in Coldroom for Sale in Chile

Walk in Cold room is located in Chile by OnlyKem manufactured. We always consider
fruit features, for example, if the fruits need humidity for better storage, if the fruits
need atmospheric conditions to prolong the storage time, our engineers design it
 professionally according to fruits features, so our walk in cold room can keep foods
 for long time. Looking forward to your requirements, we will design, manufacture 
and guide installation for you!
Why does cherry need walk in coldroom to keep?
Cherry walk in coldroom for sale in Chile
Cherry Walk in Coldroom for Sale in Chile

























Cherry belongs to berry, it includes much cherry juice, it is hard to keep fresh with 
much juice. Cherry gets ripping early, after the harvest, physiological metabolism is 
exuberant, so the lifespan period of cherry is very short, cherry shouldn't get touched
 with water, cherry stalks can not be removed, and we need to put it in a ventilated 
place, cherry can not be squeezed, all of these solutions could ensure the good 
appearance of the cherry. Without walk in coldroom, it is hard for us to taste cherry 
for long time. That is why there are many walk in coldrooms in our life.
How to keep cherry with walk in cold room?
Cherry storage including two steps. Our Chile customer ordered one pre-cooling room and one
 walk in coldroom from us. Now let me introduce their details as follows:
1.First step is pre-cooling it with pre-cooling room, when people collect it from farm,
cherry temperature is similar to ambient temperature, it is around 25 to 30 degrees 
celsius, it is going to get stale under so high temperature, so it need pre-cooling to 
cool down be 5 degrees celsius within short time.
Pre-cooling room details as follows:
Walk-in-coldroom-for-cherry
添加图片说明
Dimension: 5m*5m*2.5m
Temperature: -30 degrees celsius
Compressor: German brand Bitzer compressor
Some customers may have a question about pre-cooling temperature, why do we
 need -30 degrees celsius? It is very low temperature, won’t cherry get damaged 
with so low temperature? Our answer is no. In the pre-cooling process, room 
temperature is not same with cherry temperature, with -30 degrees celsius room 
temperature, it can cool down cherry temperature soon, after some hours,cherry
 temperature was cooled to be 5 degrees celsius, we transfer them into walk in 
cold room for fresh storage.
2.Second step is transferring cherry into walk in coldroom after the pre-cooling.
Cherry Walk in Coldroom for Sale in Chile

























Walk in coldroom details as follows:

Dimension: 10m*10m*2.5m
Temperature: 0 -5 degrees celsius
Compressor: German brand Bitzer compressor
Generally, the suitable storage temperature for cherry is 0~5 °C, the freezing point of
cherry is about -2 °C. Therefore, if the storage temperature is too low for cherry, which
 is easy to cause the cold damage for cherry fruits, it is not conducive for cherry storage
and preservation. In addition, the suitable relative humidity for the cherry storage and
preservation is about 90% to 95%, so we added humidifier in walk in coldroom for our
Chile customer.
Advantage of OnlyKem walk in coldroom as follows:
Cherry Walk in Coldroom for Sale in Chile

























1.PU sandwich panels for walk in coldroom:
We upgraded raw materials of PU sandwich panels, we forbidden using FC11 material,
 and upgraded to be HCFC-141B, HCFC-141B is more environmental friendly than
FC11. In addition, we adjusted the ratio of each raw material, density has updated 
to be 44KGS/M3 now, previous density is 40KGS/M3. With new density, insulation 
is more better. In a word, current PU panels are more environmental friendly than 
previous panels, it is not only contributed for World environment, but also healthful
 for cherry storage inside of walk in coldroom.
2.Condensing unit for walk in coldroom
Specification: Condensing unit includes New original German brand Bitzer compressor
crankcase heater, vibration absorber, air cooled condenser with large heat exchange 
area, axial fan, liquid receiver tank, sight glass, dry filter, solenoid valve, dual pressure 
switch, dual pressure gauges, oil separator, suction accumulator, etc.
Advantages: Our condensing unit is complete, including all components, some supplier
s do not include oil separator or vibration absorber, it is not good for whole system
 running in long terms. In addition, we use Danfoss brand for some important components
, such as Danfoss sight glass, solenoid valve, pressure gauges,it could extend long
 lifespan, some suppliers use other brand components for them, there is big quality 
difference between them.
Why choose us?
OnlyKem Technology Co., Ltd. is the leading walk in cold room and refrigeration unit
designer, manufacturer and exporter dedicated in supplying finest quality walk in 
cold room solutions to Worldwide customers. There are many projects in many 
different countries now, such as the USA, Canada, German, Australia, New Zealand, 
Mexico, African countries, Southeast Asia  countries and so on. We have mature and
advanced technology in refrigeration field, we have experienced engineers, OnlyKem
 aim to build our walk in cold room in all countries of the World!