The special grain cooling units for hot dry countries of the GRANIFRIGOR™ Desert series are performance- and energy consumption-optimised for hot desert climates.

Fields of application

  • Reliable grain cooling in very hot countries - Safe control of air humidity due to HYGROMAT™ automatic
  • Complete suitability and reliable operation even at extremely high outside temperatures due to safety refrigerants
  • Standard medium-pressure version - also ideal for tower silos

Products at a glance

ProductStorage sizePerformance


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12.000 t
  • Cools 340-560 tons in 24 hours
  • Up to 12,000 tons in 3 weeks


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25.000 t
  • Cools 650-1100 tons in 24 hours
  • Up to 25.000 tons in 3 weeks


GC 450 Desert

GC 650 Desert

Storage size upto 12.000 t 25.000 t
Cooling performance in 24 hours 340 – 560 t/ Day 650 - 1100 t/ Day
Refrigerating capacity compressor 165 kW 320 kW
Chilled air fan
Volume flow 25.000 m 3/h 26.000 m 3/h
Pressure maximum 6.000 Pa 6.000 Pa
Electrical data
Output (average) 75 kW 105 kW
Max. current consumption 215 A 300 A
Electrical connection 250 A 300 A
∅ Connections cold air hose 600 mm 600 mm
Condensation water runoff average 100 l/h 150 l/h
∅ Condensation water runoff hose 3/4 Zoll 3/4 Zoll
Dimensions (L x W x H)
With Tyres 3.950 x 2.130 x 2.900 mm 4.400 x 2.130 x 2.900 mm
With swivelling casters 3.740 x 2.130 x 2.690 mm 4.200 x 2130 x 2.690 mm
With Tyres 3.000 kg 3.950 kg
With swivelling casters 2.750 kg 3.700 kg
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Product description

Handling and operation

  • Particularly powerful compressors and large heat exchangers for desert conditions
  • Quiet normal running due to frequency-controlled fans and sound-optimised compressors
  • Different operating modes due to fully automatic Siemens S7 controller: very quiet (whisper mode - often used during the night), rapid cooling (booster mode ), ventilation operation (only air) and normal operation
  • Efficient, large-area filters with integrated filter monitoring
  • Increased safety through counter pressure display
  • Optimal control through viewing windows in the air cooler
  • Effective device protection through integrated phase and undervoltage monitoring
  • Reliable start-up even at low outside temperatures due to four speed-controlled condenser fans
  • Simple and thorough cleaning due to good accessibility, e.g. by heat exchangers with wide fin spacings, housing doors, manholes and inspection openings in the air duct

Energy and environmental balance

  • Economical solution due to low power consumption
  • Energy-efficient design due to frequency controls and the latest motors
  • Environment friendly safety refrigerant - without CFCs and without HCFCs
  • Additional energy savings through winter and summer thermostats
  • Permanent compliance and monitoring of desired cooling air humidity and temperature with HYGROTHERM™
  • Integrated sound insulation

Workmanship and quality

  • HYGROTHERM™ heating coil as standard
  • Robust construction due to stainless steel condensate tray
  • Corrosion protection through coated heat exchangers
  • Extra safe chassis equipment with puncture-proof solid rubber tyres, optionally swivel castors
  • Multi-stage quality control with factory test run
  • Easy maintenance Large, fully panelled doors
  • Robust industrial design
  • Depending on the design, large TÜV-tested refrigerant collectors and subcoolers
  • CE-compliant design


  • High pressure blower (HP) for slimline silo cells
  • Protective grille against animals
  • Parking supports
  • Forklift pockets for easy device transport using a forklift
  • Alarm modem (notification by SMS/email) for permanent monitoring
  • Modem for remote diagnosis/remote display (app, LAN, WiFi/WLAN, GSM)
  • Sound-proof cabin for -15 to -20 dB(A)
  • Additional heating for seeds and/or brewer's malt
  • Rotary field monitoring for effective device protection
  • Signalling light for convenient remote device monitoring
  • Fully automatic cool stop function
  • FrigorTec app


With over 55 years of experience in grain cooling, we have acquired extensive specialist knowledge in all areas. We look forward to bringing this know-how to bear on your grain storage challenges.

How grain coolers work

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The best cooling strategy for your grain storage method

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How you protect your grain from fungi and pests

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Economical introduction and operation of grain cooling

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Commissioning and maintenance of grain cooling devices

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Advantages with FrigorTec grain cooling units

FrigorTec grain cooling units are based on a sophisticated modular system and offer the following features:

  • Fully automatic Siemens S7 controller
  • Remote-controlled operation via FrigorTec app
  • Rigid, welded frame construction
  • Partially soundproofed housing UV-resistant external cable
  • Eyelets for lashing on every housing corner
  • Pressure-stable cooling air high pressure fans
  • Filters for the cooling air supplied to the grain
  • Compressors, for example from Bitzer/Germany
  • Multi-coated steel parts
  • All FrigorTec grain coolers are "Made in Germany" and complete a factory test run before delivery.

Arrange a consultation appointment

Our experts will be happy to advise you on the planning and implementation of your grain warehouse. Together we will find the perfect customised solution to safeguard your harvest quality.