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LJ -45°C~ -10°C

CHILLER Refrigeration Circulator

LTZ variable frequency series
  • Cooling capacity2kW~320kW
  • Temp Control Range-100℃~+90℃
  • Temp control accuracy±0.5℃

LNEYA specializes in the production of single-fluid cryogenic chillers. The refrigeration temperature ranges from -150°C to -5°C, which can meet the needs of different refrigeration temperatures. The company developed a direct-cooled ultra-low temperature chiller, using international brand compressors Carrier, using automatic cascade refrigeration mode and mixed refrigerants, within 3 minutes can be refrigerated to minus 120°C.

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

Widely used in chemical, pharmaceutical, biochemical and other industries in the field of low temperature reaction, refrigeration speed, safety and reliability. 

LTZ -40℃~90℃

Model LTZ4-2H
LTZ4-2WH
LTZ4-4H
LTZ4-4WH
LTZ4-6H
LTZ4-6WH
LTZ4-10H
LTZ4-10WH
Temp range  -40℃~90℃
Temp control accuracy PLC controller, control the water tank outlet temperature screen
Temp control accuracy ±0.3℃
Heating power 2.5kW 5.5kW 7.5kW 10kW
Cooling capacity -15℃ 2kW 4.5kW 7kW 11.5kW
-35℃ 0.7kW  1.5kW 2.3kW 3.8kW
Circulation Pump MAX 20L/min 2bar 35L/min 2bar 50L/min 2bar 100L/min 2bar
Temperature control accuracy ±0.3℃
Temperature feedback Temperature feedback PT100 (inlet temperature, outlet temperature)
Compressor Inverter compressor
Evaporator Plate Heat Exchanger
Operation panel 7-inch color touch screen displays set temperature and measured temperature, records temperature curve, and exports data in Excel format
Safety protection Self-diagnosis function; refrigerator overload protection; high and low pressure sensors, overload relays, thermal protection devices and other safety protection functions.
power supply AC380V 50HZ/ AC460V 50HZ
Shell material Cold rolled sheet (REL7035)
  Communication protocol MODBUS RTU protocol RS485 interface

LTZ 5℃~30℃

Model LTZ-6
LTZ-6W
LTZ-10
LTZ-10W
LTZ-15
LTZ-15W
LTZ-20W LTZ-30W LTZ-40W
Temp range 5℃~30
Temp control PLC controller, control the water tank outlet temperature screen
Temp control accuracy ±0.5
Cooling capacity 20 23kW 40kW 58kW 79kW 110kW 155kW
Circulation Pump MAX 5m³/h 5m³/h 11m³/h 14m³/h 19m³/h 28m³/h
2bar 2bar 2bar 2bar 2bar 2bar
LTZ -25℃~30℃

Model LTZ2-6
LTZ2-6W
LTZ2-10
LTZ2-10W
LTZ2-15
LTZ2-15W
LTZ2-20W LTZ2-30W LTZ2-40W
Temp range -25℃~30
Temp control PLC controller, control the water tank outlet temperature screen
Temp control accuracy ±0.5
Cooling capacity -5 10.2kW 18kW 26.5kW 28.4kW 58.5kW 64.5kW
-15 7kW 11kW 16.2kW 18.2kW 39.6kW 43.32kW
Circulation Pump MAX 2.5m³/h 4.2m³/h 6m³/h 6.7m³/h 15m³/h 15m³/h
2bar 2bar 2bar 2bar 2bar 2bar
LTZ -45℃~20℃

Model LTZ4-6
LTZ4-6W
LTZ4-10
LTZ4-10W
LTZ4-15
LTZ4-15W
LTZ4-20W LTZ4-30W LTZ4-40W
Temp range -45℃~20
Temp control PLC controller, control the water tank outlet temperature screen
Temp control accuracy ±0.5
Cooling capacity -20 5.7kW 9.9kW 14.8kW 18.5kW 28.1kW 32.4kW
-35 2.85kW 5.03kW 7.7kW 10.8kW 14.5kW 17.4kW
Circulation Pump MAX 1.5m³/h 2.4m³/h 3.5m³/h 4.5m³/h 6.8m³/h 7.7m³/h
2bar 2bar 2bar 2bar 2bar 2bar
LTZ -60℃~-30℃

Model LTZ6-6
LTZ6-6W
LTZ6-10
LTZ6-10W
LTZ6-15
LTZ6-15W
LTZ6-20W LTZ6-30W LTZ6-40W
Temp range -60℃~-30
Temp control PLC controller, control the water tank outlet temperature screen
Temp control accuracy ±0.5
Cooling capacity -40 6.2kW 9.1kW 12.8kW 17.5kW 28kW 31.7kW
-55 4.9kW 7.2kW 10kW 13.8kW 22.1kW 25.1kW
Circulation Pump MAX 2.4m³/h 3.8m³/h 5.3m³/h 7m³/h 10m³/h 12.1m³/h
2bar 2bar 2bar 2bar 2bar 2bar
LTZ -80℃~-50℃

Model LTZ8-6
LTZ8-6W
LTZ8-10
LTZ8-10W
LTZ8-15
LTZ8-15W
LTZ8-20W LTZ8-30W LTZ8-40W
Temp range -80℃~-50
Temp control PLC controller, control the water tank outlet temperature screen
Temp control accuracy ±0.5
Cooling capacity -60 5.8kW 8.6kW 12kW 16.5kW 26.6kW 30kW
-70 3.7kW 5.5kW 7.7kW 10.6kW 17kW 19.2kW
Circulation Pump MAX 2.3m³/h 3.4m³/h 4.6m³/h 6.5m³/h 11m³/h 12m³/h
2bar 2bar 2bar 2bar 2bar 2bar
LTZ -115℃~-80℃

Model LTZ10-4W LTZ10-6W LTZ10-10W LTZ11-6W LTZ11-10W LTZ11-15W
Temperature range -100℃~-65℃ -115℃~-80℃
Temperature control PLC controller, control the water tank outlet temperatureh screen
Temperature feedback PT100
Cooling capacity -80℃ 0.8kw 1.4kw 2.1kw      
  -90℃ 0.6kw 1.1kw 1.7kw 1.1kw 1.7kw 2.8kw
  -100℃       0.8kw 1.2kw 2kw
Circulation Pump MAX 20L/min 2bar 20L/min 2bar 30L/min 2bar 20L/min 2bar 30L/min 2bar 40L/min 2bar
Compressor Tecumseh, Emerson Copeland, Carrier
Evaporator Plate Heat Exchanger
Frequency Converter ABB
Operation panel 7-inch color touch screen displays set temperature and measured temperature, records temperature curve, and exports data in Excel format
Safety protection Self-diagnosis function; refrigerator overload protection; high and low pressure sensors, overload relays, thermal protection devices and other safety protection functions.
Refrigerant Mixed refrigerant 1 Mixed refrigerant 2
Interface size G3/4 G3/4 G3/4 G3/4 G3/4 G3/4
Power supply 380v 6kw max 8.5kw max 14kw max  8.5kw max 14KW max 20KW max

1.Temperature ranges from -115℃ ~ 90℃, 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.

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