Keyword Recirculating Chiller Ultra-low Temp Chillers SUNDI series TES series Products

Water-cooled Chillers丨Ultra-low Temp Chillers

LJ/CDLJ serise

Typical Applications

1. A liquid low temperature cooling using heat transfer medium, used in chemical, pharmaceutical, military, aerospace, biochemical industries, low temperature, ultra-low temperature process, supporting extraction, distillation, reaction kettle… for filtration, crystallization… reactions.

2. It can cooperate with CBD equipment, CO2 extraction equipment, PVD equipment, etc. to provide low circulating temperature for the reaction process.

Working Principle

Single-fluid ultra-low temperature chiller, the cooling temperature range is from -150 degrees to -5 degrees, which can meet different cooling temperature needs.

The whole system is a fully closed system, and there is no water absorption during low temperature operation, which ensures the purity of the cold heat transfer medium, prevents ice crystals, and improves the life of the heat transfer fluid.

The direct-cooling ultra-low temperature freezer developed by LNEYA adopts international brand compressors and single-compressor automatic cascade refrigeration technology. It can be cooled to minus 120°C within 3 minutes, and the cooling speed is fast, safe and reliable.

Video introduction

    Ultra-low Temperature Chiller Can Be Either Air-Cooled Chiller Or Water-Cooled Chiller. The Choice Of Air Cooling Or Water Cooling Depends On Your On-Site Process Conditions And Requirements, You Can Explain To Us At The First Time, So As To Better Choose Model.


Temperature Range -25°C ~ -5°C  -45°C ~ -10°C -60°C ~ -10°C -80°C ~ -30°C -110°C ~ -50°C -150°C ~ -110°C
Cooling CapacityUp to 360kWUp to 360kWUp to 360kWUp to 270kWUp to 180kWUp to 11kW
Circulating Pump6.6m³/h~25m³/h 2.5bar
Is it a fully enclosed system?Yes
OptionalExternal touch screen controller, Communication line distance 10 meters

Talk to us about your cryogenic cooling solution needs

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Application Field

Customer Case

    Whether decarboxylation, distillation or winterization, temperature control also plays a decisive role in the further processing of crude oil.

    Perfectly balanced temperature control system not only improves production results, but also increases process reliability and reduces production time, costs and maintenance. We have extensive experience and a team of experts in the field of temperature control for industrial chemical and pharmaceutical processes. If required, we adapt the temperature control solution to your individual needs.

Advantages of Ultra-low Temperature Chillers(Water-cooled Chillers)

1.Adopt secondary subcooling technology, rapid cooling and low cooling temperature;

2.Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK. Bitzer, Copeland, Handbell, fusheng; Plate heat exchanger, Small volume, High efficiency;

3.Top imported cold controller; Generator cooling water circuit uses intermediate heat exchanger, improve system reliability and safety.

4.DANFOSS electronic expansion valve, high precision control;

5.Adopt Siemens PLC S7-200/300, LNEYA touch screen, automatic control, temperature curve display, temperature record U disk, fault alarm;

6.Offer machine installation and system test, users only need to finish the installation of refrigerant and cooling water.


Industrial water chiller consists of compressor, condenser, evaporator, expansion valve and other accessories.

  1. Compressor: in the industrial water chiller system, the compressor is the power to ensure refrigeration. The compressor is used to increase the pressure of the refrigerant in the system and make the refrigerant circulate in the refrigeration system to achieve the purpose of refrigeration.
  2. Condenser: high temperature and high pressure Freon of the refrigeration system enters the condenser after coming out of the compressor, releases a lot of heat to the cooling medium, and then is cooled and liquefied.
  3. Evaporator: when the Freon liquid of the refrigeration system enters the expansion valve for throttling and is sent to the evaporator, it belongs to the vaporization process. At this time, it needs to absorb a lot of heat to gradually reduce the valence and mass temperature to achieve the effect of refrigeration and cooling.
  4. Expansion valve: in the refrigerant system flow chart of the industrial water chiller, we found that there is a small part between the outlet of the condenser and the inlet of the evaporator, which is called thermal expansion valve. It is a throttling and depressurizing part to reduce the condensation pressure of the refrigerant to the evaporation pressure. Therefore, its role in the refrigeration system is essential. It is connected with the refrigeration compressor, evaporator, condenser It is also called the four components of the refrigeration system.
  5. Other accessories: including drying filter and high and low pressure controller. The drying filter is non detachable. The internal structure adopts molecular sieve structure, which can remove a small amount of impurities and water in the pipeline, so as to purify the system. The high and low pressure controller plays a protective role in the refrigeration system.

This Series Of Equipment Illustrations May Have Errors With The Actual, Please Contact Us To Get The Latest.
LNEYA Reserves The Right Of Final Interpretation.

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