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Atlas Equipment Solutions

-120℃ Sealed Recirculating Chiller

-120℃ Sealed Recirculating Chiller

Pricing: Available upon request

Lead time: 7–21 days

Customization: Supported

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Response within 24 hours

The -120 °C Sealed Recirculating Chiller is an ultra-low temperature closed-loop cooling system designed for laboratory, pilot-scale, and industrial applications requiring precise temperature control at extremely low temperatures. The sealed circulation system prevents contamination and evaporation of the coolant while maintaining stable and efficient cooling performance.

With a temperature range down to -120 °C, this chiller is ideal for processes that require deep cooling, including low-temperature chemical reactions, molecular distillation, vacuum freeze drying, glass reactor cooling, and pharmaceutical or materials research. The system uses high-efficiency compressors, plate heat exchanger evaporators, and multi-stage refrigeration technology to deliver reliable ultra-low temperature performance.

Equipped with PID intelligent temperature control, PT100 sensors, and advanced safety protections, the system ensures accurate temperature regulation and safe continuous operation. Optional PLC automation and communication interfaces allow integration with laboratory control systems and industrial automation environments.

These chillers are widely used in chemical laboratories, pharmaceutical manufacturing, biotechnology research, cryogenic experiments, and advanced material processing where precise and stable low-temperature control is required.

Available Models

Model DLSB-10/120 DLSB-30/120 DLSB-50/120 DLSB-100/120 DLSB-200/120 DLSB-300/120 DLSB-500/120
Temperature Range -120 °C ~ RT (±0.5 °C)

Operating Conditions

Parameter Specification
Ambient Temperature ≤ 30 °C
Ambient Humidity ≤ 60%
Voltage 220 V / 380 V / 460 V
Phase Single-phase or Three-phase
Frequency 50 / 60 Hz

Power

Model Power
DLSB-10/120 3.6 kW
DLSB-30/120 7.1 kW
DLSB-50/120 14 kW
DLSB-100/120 15.2 kW
DLSB-200/120 24 kW
DLSB-300/120 30.5 kW
DLSB-500/120 36 kW

Cooling Capacity

Temperature 10 30 50 100 200 300 500
25 °C (W) 4380 7875 15750 18375 46789 58882 78750
0 °C (W) 4100 7100 14600 17275 35841 39811 56300
-40 °C (W) 3200 5596 11000 13100 14078 17400 33050
-80 °C (W) 1200 2800 3542 5522 7623 10324 20600
-120 °C (W) 250 450 600 900 1100 1500 2200

Refrigeration System

Parameter Specification
Compressor Type Closed / Semi-closed
Compressor Brands Tecumseh / Maneurop / Refcomp
Refrigerants R404A / R23 / F14
Condenser Air cooling (optional water cooling)
Fan Type External rotor axial flow fan
Evaporator Plate heat exchanger

Circulation System

Model Tank Volume Flow Rate Head
10 7 L 20-25 L/min 8 m
30 10 L 20-25 L/min 8 m
50 17 L 30 L/min 12 m
100 35 L 30 L/min 12 m
200 100 L 60 L/min 10 m
300 100 L 60 L/min 10 m
500 300 L 180 L/min 15 m

External circulation connection: DN15 – DN32

Circulation Pump

Parameter Specification
Pump Type Shield pump
Brand Shanghai Jingyi
Power 100 W – 750 W

Dimensions & Weight

Model Length Width Height Weight
10 970 mm 800 mm 1250 mm 330 kg
30 970 mm 800 mm 1250 mm 350 kg
50 1500 mm 960 mm 1300 mm 560 kg
100 1500 mm 960 mm 1500 mm 600 kg
200 1900 mm 1040 mm 1820 mm 830 kg
300 1900 mm 1040 mm 1820 mm 830 kg
500 3000 mm 1300 mm 2080 mm 1600 kg

Optional PLC Control System

Feature Specification
PLC System Siemens S7-200 Smart PLC
Programming 5 programs with up to 40 steps each
Control Mode Automatic switching between material temperature and outlet temperature
Communication Modbus RTU RS485 (optional RS232 / Ethernet)
Display 7-inch Siemens touch screen (optional 10-inch)
Data Export USB export of temperature data (TXT format)

Safety Protection

  • Overvoltage protection

  • Time delay protection

  • Overcurrent protection

  • Overheating protection

  • Leakage protection

Packing List

  • Two adapter valve sets

  • One roll of sealing tape

  • Two stainless steel insulated circulation hoses

  • Operation manual

Applications

  • Molecular distillation systems

  • Glass reactors and stainless steel reactors

  • Vacuum freeze dryers

  • Pharmaceutical and biochemical laboratories

  • Ultra-low temperature chemical reactions

  • Advanced material synthesis and cryogenic experiments

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