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.