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LN  -60°C~ -10°C
LN  -60°C~ -10°C
LN  -60°C~ -10°C
LN  -60°C~ -10°C
LN  -60°C~ -10°C


Ultra Low Temperature Chiller
  • Cooling capacity @-55℃6kW~180kW
  • Power range14kW~300kW
  • Expansion tank100L~750L
  • RefrigerantR404A/R23
  • Weight850KG~5600KG
  • Place of OriginChina

Product data download

Configuration Details

Model LN-6W LN-10W LN-20W LN-30W LN-40W LN-60W LN-120W LN-180W
Temperature Range  -60°C~ -10°C
Cooling Capacity 
At -55°C
6kw 10kw 20kw 30kw 40kw 60kw 120kw 180kw
  5160Kcal/h 8600Kcal/h 17200Kcal/h 25800Kcal/h 344000Kcal/h 51600Kcal/h 103200Kcal/h 154800Kcal/h
Circulation Pump Info 6.6m³/h 9m³/h 15m³/h 25m³/h 25m³/h 25m³/h / /
  2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max
Inlet&outlet connection size DN-25
Cooling Water at 30 degree 10m³/h 14m³/h 25m³/h 30m³/h 35m³/h 50m³/h 90m³/h 120m³/h
Expansion tank(standard) 100L 175L 350L 500L 600L 750L / /
Compressor Emerson Scroll compressor,Carlyle;Dorin Carlyle、HANBELL、Fusheng、Bitzer screw compressor
Operation Panel 7-inch color touch screen display, temperature curve record
Control System PLC&Module,Set temperature difference of refrigeration on & off
Closed Circulation System The whole system is a full closed circulation, there is no oil mist at high temperature and no water vapor at low temperature, pressure do not rise up when system is running. The system will supplement oil automatically at low temperature
Circulation Pump LNEYA Mangetic Pump
Evaporator Plate heat exchanger
Condenser Casing type water-cooled condenser / tube-type water-cooled condenser
Intermediate heat exchanger Plate heat exchanger
Refrigeration accessory Oil separators, drying filters, expansion valves, refrigeration solenoid valves, pressure control, mirrors, etc. all use Emerson / Danfoss and other brands
Electric AC contactors, intermediate relays, circuit breakers, thermal relays, etc. are Schneider / ABB brand
Refrigerant R404A/R23 mixture R508B
Secondary refrigerant No corrosive liquid, ethanol water, heat transfer oil etc.
Safety Protection High pressure protect; water supply cut-off protection; over-current protection; leakage protection; sequential and phase failure protection; High temperature protection; Sensor Failure protection; Liquid low level protection etc. multi-safety protection
Level Indicator Adopt glass liquid level indication
Piping material Expansion tank, cold storage tank and circulation pipeline are all made of SUS304
Case material Channel steel + square tube + cold rolled plate        sealing plate spray 7035
Dimension cm 100*150*185 100*150*185 205*145*225 250*145*225 350*160*245 350*160*245 500*200*260 650*200*260
Power 16kW 20kW 36kW 64kW 93kW 122kW 200kW 300kW
dB within 75dB    within 90 dB
Weight (kg) 850 1000 1450 2000 2400 3000 4200 5600
Optional Optional outside touch screen display controller (separated), the communication line distance is 10 meter
Optional Optional explosion-proof touch screen control system (ExdeIIBT4), the communication line distance is 15 meter

Product Description

1.Temperature ranges from -5℃ ~ -150℃, can meet different 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.

Chiller Knowledge

We know that the low temperature chillers are complicated equipment. Even the switch process, if not according to the standard of operation or with no special maintenance, will inevitably lead to a decline in the refrigeration efficiency of the low temperature chillers and will greatly reduce the service life of the them. Here, we will talk about major attention matters when enterprises use low temperature chillers!

1. Refrigerant leakage

Refrigerant leakage will not only affect the refrigeration efficiency of low temperature chillers, but also affect the health of people in and out of the engine room, so the issue of refrigerant leakage must be noted.

2. Pay attention to the load of the low temperature chillers

The large load of low temperature chillers, or overload phenomenon which is more than the rated load, will bring about serious problems including refrigeration efficiency decline, bigger noise,  bigger vibration amplitude, excessive consumption of resources, decline in service life and so on which need to pay attention to!

3. Temperature and pressure

It can be said that the parameters related to temperature and pressure are the most important parameters of low temperature chillers. Enterprises should pay attention to the parameters related to the temperature and pressure of the low temperature chillers, and solve them in time, so as to avoid affecting the normal operation of the low temperature chillers.

Paying attention to the points mentioned above has extraordinary importance for extending the service life of low temperature chillers ,and improving the refrigeration efficiency and the use safety of low temperature chillers.

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