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Complete cooling & freezing installations

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Description / remarks: 

Used and in condition as new (only 1 year in production) complete Bitzer 2-stage freeze-pump installation built on a steel frame and consists of the following main components:

  • 3 pieces low pressure (booster) screw compressors open type OSKAB 7471 with each a 30kW E-motor
  • 2 pieces high pressure screw compressors open type OSKA 7451 with each a 55kW E-motor
  • 2 x oil separator 881 Ltr for the low and high pressure side
  • Water cooled oil cooler type plate heat exchanger brand Alfa Laval coupled to an air-cooled Güntner dry cooler type GFH 0678/2N
  • Horizontal low pressure separator 640 Ltr -40°C with 2 pieces Hermetic Cam 1/3 NH3 liquid pumps (combined with the intermediate pressure separator)
  • Horizontal intermediate pressure separator 640Ltr -6°C coupled to a plate cooler/ heat exchanger for natural circulation, ± 130kW to be used for glycol cooling if necessary (combined with the low pressure separator)
  • Air-cooled condenser or evaporating condenser at choice
  • Custom made control box with new Siemens PLC/Simatic touchscreen
  • All necessary certificates for PED
  • Cool technical and electrical drawings
  • Custom made Software

Mentioned cooling capacity of is with the refrigerant R717 at -40°C/ +40°C.

Cooling capacity:
140 kW/41 tons
Number of cooling circuits:
Type of refrigerant:
NH3 Ammonia
400 V
Absorbed power:
100 kW
Year of Manufacture:
Dimensions (LxWxH):
600 x 180 x 238 cm
Weight (kg):
± 5500 kg
Comron Used To Cool