Flake ice machine (rotating evaporator) for direct operation with carbon dioxide (CO2, R744). 

Ice output 500-3800 kg / 24 h

Series machines:

  • RVH 400 CO2-D
  • RVH 800 CO2
  • RVH 1000 CO2
  • RVH 1500 CO2
  • RVH 2000 CO2
  • RVH 2500 CO2
  • RVH 3000 CO2

The MAJA Flake Ice Machines type RVH CO2 are designed for direct R744 operation with a multicompressor refrigeration unit and can be integrated into refrigeration projects targeting sustainability and environmental safety. 

This machine type is labelled 'HY-GEN protected', allowing quick and easy cleaning, either by hand or automatically by the selfcleaning system MAJA-SCS (option). HY-GEN Flake Ice Machines are made for the production of flake ice under excellent sanitary conditions. The core piece of the HY-GEN sanitation principle is the evaporator tank in plastic material, which can easily be removed for cleaning.

Equipment & features

Optimum energy efficiency - increased power density

Compared to other usual refrigerants (e. g. R404A), the direct carbon dioxide operation brings more power density, thus increase of ice capacity up to 30 % compared with the same machine scale.

Electronic expansion valve for optimum evaporation efficiency


Eco-friendly flake ice production:

Excellent ecological impact by the use of the natural refrigerant R744 (carbon dioxide / CO2) for flake ice production.

R744 consists of the elements carbon and oxygen, gases which are natural parts of the earth atmosphere.

Almost no influence on the destruction of the ozone layer and the greenhouse effect: Ozone depletion potential ODP = 0, global warming potential GWP = 1

High safety standard:

Refrigerant pump-down when the machine stops

Easy operation by Control Panel Touch


Well-arranged presentation of the control and display elements

Easy operation

Input directly on the display

Programming of automatic start and stop times

Programming of automatic cleaning cycles (only with option MAJA-SCS self-cleaning system)

Fast and easy change of language

Display of additional information

Visualization of state of sanitation

Error code indication on the display in clear text

Display error memory

Degree of protection IP 65

Also available with cable 10 and 18 m.

Optional accessory: Protective cover for touch display

Conditions for installation of MAJA RVH CO2-D for operation with R744:

Subcritical CO2 circuit.

Evaporation pressure regulator to adapt the evaporation temperature of the RVH to to = approx. -25°C.

Stop valve liquid line and suction line.

Pressure relief valve with interchangeable valve for maintenance.

If necessary, CO2 gas detector (depending on the local situation at the installation place)

Tehcnical data
Additional info water supply temperature: 16°C, ambient temperature: +20°C (higher temperatures may lead to reduced ice output), max. pressure: liquid side 42 bar, suction side 28 bar, refrigeration capacity required to -25°C, 2,8-20,5 kW
Electrical Requirements 3AC/50Hz/400V/PE; 0,28-0,38 kW
Output 500-3800 kg / 24 h
Refrigerant R 404A, others on demand
Water connection water supply: ¾'' external thread; drain water 1'' hose clip
Water consumption 0,5-3,8 m³ /24h

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Maja RVH CO2 series

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