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Open Cycle

Direct supply of air into the cold room, no need for evaporators and auxiliary fans indoors. Operating at low pressure, safer solution than any alternatives.
-40°c -110°c
Temperature range
10-22 kW
Motor power
Features
Snow Catcher

At extremely low temperatures, moisture instantly turns to ice, so Mirai Intex has developed a unique Snow Catcher - Humidity Extraction Device (HED) makes regular defrosting procedures a thing of the past. The unique device allows the machines to work continuously without the need for defrosting procedures that consume cooling power and additional energy.

The installation of the machine is very simple - only a few holes need to be cut in the wall of the cold room to connect MIRAI Cold and Snow Catcher.
Award-winning Products
prize-one
prize-two
First Slide
Eco-Friendly
  • Air as refrigerant
  • No need to refilling
  • Environmentally friendly
Oil free
  • No oil in the system due to air bearings
  • Reduced costs
Legislative compliance
  • Legislative compliance
  • Compliance with all international standards / regulations
Operating stability
  • Stable loads on power grid and cooling water even in the most demanding conditions
Safe solution
  • No chemically active substances
  • No risk of fire or explosion
No vibration or noise
  • No vibration or noise
  • Turbo module design reduces noise and vibrations
Open cycle systems
The MIRAI COLD ultra-low temperature refrigeration machine runs on the safest and most natural refrigerant: natural air.
MIRAI Cold 10
MIRAI Cold 10 (MC 10 O/W)
  • Rated Motor Power 10 kW
  • Refrigerant Natural Air
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 133x99x179 cm
MIRAI Cold 15
MIRAI Cold 15 (MC 15 O/A)
  • Rated Motor Power 15 kW
  • System Cooling Air Air-cooled
  • Refrigerant Natural Air
  • Dimensions (WxDxH) ±1,5 cm 185x154x204 cm
MIRAI Cold 22
MIRAI Cold 22 (MC 22 O/W)
  • Rated Motor Power 22 kW
  • Refrigerant Natural Air
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 185x154x200 cm
The principle of open cycle systems
Air is heated during compression and cooled through a series of heat exchanger send then expanded to reach ultra-low temperatures.
While repeating the cycle of compression, cooling and expansion we can achieve temperatures down to -160°C.
Temperature accuracy of
0.5°C
Minimal service requirements
Maintenance costs are kept to a minimum. No refrigerant leakage tests, no refrigerant purchase costs and no refrigerant replenishment. Air is supplied free of charge. Long-life, wear-resistant parts and components ensure a long service life thanks to oil-free operation.
First Slide
Control system _ second screen
Remote monitoring
An integrated control system with easy-to-use touchscreen interface and integration of digital communication protocols such as ProfiNET, EtherCAT, EtherNET/IP and Powerlink come as standard.

The system offers real-time monitoring, data archiving and remote monitoring as options. Remote monitoring allows you to check and log machine performance, as well as update machine software online.
Support from Mirai Intex during machine’s operation and during troubleshooting
Detection and prevention of problems
Regular check-ups of machine condition and performance
Applications
category-applications
OPEN CYCLLE MACHINES APPLICATIONS
Biomedical Storage
Preservation of precious and delicate items or testing their duration through the most extreme conditions is only some of the things our solution can provide. Keep samples and sensitive materials in a homogenous environment all years round without harm. Learn more about MIRAI Cold Products at mirai-intex.com/products
Metal Hardering
Cryogenic steel treatment is carried out at temperatures between -70°C and -120°C for one hour. It increases hardness and wear resistance by converting a higher proportion of austenite to martensite. The cooling room for cryogenic steel hardening consists of two rooms separated by a permeable barrier. Therefore, two different batches can be hardened in one machine. A heat exchange takes place between a new batch and the warm batch before the warm batch has to be cooled down to the required temperatures using an air cycle machine. This saves some of the refrigeration capacity required for cooling and reduces operating costs.
Pharma Storage
Storage, management and transportation of life-saving products such as vaccines, pharmaceuticals require a precisely coordinated chain of events under controlled temperature conditions. Temperature accuracy and quality assurance are key requirements for manufacturers. Temperature uniformity, optimum storage temperatures, electrical equipment and surface area are decisive factors in the energy efficiency of a cold store. With reliable systems, the manufacturer will never be exposed to material losses in the form of spoiled vaccines or pharmaceuticals.
Climate Testing
Testing is an important part of the product development process, control at all stages of production and pre-sale preparation of equipment, products, and devices. The main indicator of the quality of any product is resistance to temperature effects. With highly reliable refrigeration system MIRAI COLD set and maintained temperatures have an accuracy down to the 0.5ºC via the integrated variable speed drive on the compressor.
Cryogenic Storage
Cryogenic storage of biological materials usually requires temperatures below - 130 °C. Ultra-low temperatures are achieved by cooling with clean air. Machines with temperatures down to -160 degrees Celsius are designed according to personal design and request. Cryogenic storage needs to be foremost stable and reliable for you to be sure that stored samples are in the best conditions.
Logistic Transport
Logistic transport with ultra-low temperature capabilities is a specialized service designed to safely and efficiently transport sensitive goods that require maintenance at extremely low temperatures, typically ranging from -40°C to -150°C. This type of logistics is crucial for sectors such as healthcare, pharmaceuticals, and biotechnology, where the integrity of products like vaccines, biological samples, and certain chemicals must be preserved throughout the transportation process. Equipped with advanced cooling technologies and real-time temperature monitoring systems, these transport solutions ensure that the products remain within their required temperature range, minimizing the risk of degradation or loss of potency.
Food Storage
Storing food at -60°С stops all intra-cellular biochemical processes and denaturation of proteins, doesn’t damage tissue cells and prevents the formation of large ice crystals as it occurs at -18°C.
OPEN CYCLLE MACHINES APPLICATIONS
OPEN CYCLLE MACHINES APPLICATIONS
Biomedical Storage
Biomedical Storage
Preservation of precious and delicate items or testing their duration through the most extreme conditions is only some of the things our solution can provide. Keep samples and sensitive materials in a homogenous environment all years round without harm. Learn more about MIRAI Cold Products at mirai-intex.com/products
Metal Hardering
Metal Hardering
Cryogenic steel treatment is carried out at temperatures between -70°C and -120°C for one hour. It increases hardness and wear resistance by converting a higher proportion of austenite to martensite. The cooling room for cryogenic steel hardening consists of two rooms separated by a permeable barrier. Therefore, two different batches can be hardened in one machine. A heat exchange takes place between a new batch and the warm batch before the warm batch has to be cooled down to the required temperatures using an air cycle machine. This saves some of the refrigeration capacity required for cooling and reduces operating costs.
Pharma Storage
Pharma Storage
Storage, management and transportation of life-saving products such as vaccines, pharmaceuticals require a precisely coordinated chain of events under controlled temperature conditions. Temperature accuracy and quality assurance are key requirements for manufacturers. Temperature uniformity, optimum storage temperatures, electrical equipment and surface area are decisive factors in the energy efficiency of a cold store. With reliable systems, the manufacturer will never be exposed to material losses in the form of spoiled vaccines or pharmaceuticals.
Climate Testing
Climate Testing
Testing is an important part of the product development process, control at all stages of production and pre-sale preparation of equipment, products, and devices. The main indicator of the quality of any product is resistance to temperature effects. With highly reliable refrigeration system MIRAI COLD set and maintained temperatures have an accuracy down to the 0.5ºC via the integrated variable speed drive on the compressor.
Cryogenic Storage
Cryogenic Storage
Cryogenic storage of biological materials usually requires temperatures below - 130 °C. Ultra-low temperatures are achieved by cooling with clean air. Machines with temperatures down to -160 degrees Celsius are designed according to personal design and request. Cryogenic storage needs to be foremost stable and reliable for you to be sure that stored samples are in the best conditions.
Logistic Transport
Logistic Transport
Logistic transport with ultra-low temperature capabilities is a specialized service designed to safely and efficiently transport sensitive goods that require maintenance at extremely low temperatures, typically ranging from -40°C to -150°C. This type of logistics is crucial for sectors such as healthcare, pharmaceuticals, and biotechnology, where the integrity of products like vaccines, biological samples, and certain chemicals must be preserved throughout the transportation process. Equipped with advanced cooling technologies and real-time temperature monitoring systems, these transport solutions ensure that the products remain within their required temperature range, minimizing the risk of degradation or loss of potency.
Food Storage
Food Storage
Storing food at -60°С stops all intra-cellular biochemical processes and denaturation of proteins, doesn’t damage tissue cells and prevents the formation of large ice crystals as it occurs at -18°C.