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Closed Cycle

Circulation of ultracold air inside the cooling unit. The machines are equipped with an additional heat exchanger for the secondary working fluid.
-40°c -110°c
Temperature range
10-150 kW
Motor power
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Features
Great advantage - environmental neutrality of the system, using air as the refrigerant. Air cycle equipment is substantially reliable and durable, reducing maintenance costs and ensuring cycle longevity without performance degradation, unlike steam compression cycle equipment.

A unique feature – production of useful heat and integration into a building's heat management system.
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
Closed cycle systems
MIRAI Cold closed cycle machines are the true plug & play refrigeration solution for ultra-low temperatures with environment and sustainability in mind. Multiple machines can be used in a modular configuration for redundancy and convenience.
MIRAI Cold 20 D
MIRAI Cold 20 D (MC 20 C/W/D)
  • Rated Motor Power 20 kW
  • Refrigerant Natural Air
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 133x117x181 cm
MIRAI Cold 10 T
MIRAI Cold 10 T (MC 10 C/W/T)
  • Rated Motor Power 10 kW
  • Refrigerant Natural Air
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 133x99x179 cm
MIRAI Cold 15 T
MIRAI Cold 15 T (MC 15 C/W/T)
  • Rated Motor Power 15 kW
  • Refrigerant Natural Air
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 133x99x179 cm
MIRAI Cold 30 T
MIRAI Cold 30 T (MC 30 C/W/T)
  • Rated Motor Power 30 kW
  • Refrigerant Natural Air
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 151x194x230 cm
MIRAI Cold 80 T
MIRAI Cold 80 T (MC 80 C/W/T)
  • Rated Motor Power 80 kW
  • Refrigerant Natural Air
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 289x229x192 cm
MIRAI Cold 150T
MIRAI Cold 150T (MC 150 C/W/T)
  • Rated Motor Power 150 kW
  • System Cooling Air Water-cooled
  • Refrigerant Natural Air
  • Dimensions (WxDxH) ±1,5 cm 289x229x192 cm
MIRAI Cold 50 LNG
MIRAI Cold 50 LNG (MC 50 C/W/LNG)
  • Rated Motor Power 50 kW
  • Refrigerant Nitrogen
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 243x229x192 cm
MIRAI Cold 90 LNG
MIRAI Cold 90 LNG (MC 90 C/W/LNG)
  • Rated Motor Power 90 kW
  • Refrigerant Nitrogen
  • System Cooling Water Water-cooled
  • Dimensions (WxDxH) ±1,5 cm 243x229x192 cm
Retrofitting
Installation effort is kept to a minimum. All that is needed is to connect 4 flanges (2 - secondary working fluid and 2 - water cooling), and electrical cabling.
High quality production requires the most sofisticated refrigeration system. Don't take risk and choose the best.
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.
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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
System Pressurization Unit
MIRAI Cold refrigeration machines are running only with gaseous air as refrigerant which cannot change its state to liquid
With the optional System Pressurization Unit, MIRAI Cold machines are capable of matching required operating conditions and can charge or drain the appropriate amount of air from the refrigeration cycle. Required air purity for MIRAI Cold is 1.2.1 (according to ISO 8753).

Mirai Intex has developed high-quality automated charging system available as an optional accessory for MIRAI Cold T models. This option is fully integrated inside the machine housing and therefore does not require any additional space. And since it is installed at the factory it goes through all testing procedures with the machine.
system-pressurization
new-product-line
MIRAI Cold LNG Gas Liquefaction
MIRAI INTEX is at the forefront of innovation, introducing three solutions designed to revolutionize the biogas liquefaction process: MIRAI Cold 50 LNG and MIRAI Cold 90 LNG, comprising an extended range of LNG machines. MIRAI developed process designs with MIRAI Cold LNG solutions for various productions capacity (available for 3, 5 ,10 ,15 and 20 tons of liquefied gas per day).
Bio LNG is a cold renewable biofuel that can be produced anywhere where anaerobic digestion (AD) and upgrading for liquefaction is possible. Anaerobic digestion and the production of bio-LNG can effectively address issues of clean energy production, environmental conservation, and waste management. Biogas is upgraded and liquified into Bio-LNG, consisting of almost 100% methane. This gas is a renewable form of energy and liquifying the biogas increases the valuation of the gas. Bio-LNG is ideal for manufacturing and industrial businesses with energy-intensive operations, as well as the transport industry.
Applications
category-applications
CLOSED CYCLE MACHINES APPLICATIONS
LNG Production
Advanced solution precisely engineered for the precooling and liquefaction of biomethane
Chemical Processes
Chemical processes often involve reactions that can be exquisitely sensitive to temperature changes. Cold temperatures play a crucial role in many of these processes by slowing down reaction rates, thus offering greater control over the reaction's outcome. This is particularly important in reactions that are highly exothermic, where excessive heat can lead to runaway reactions or in processes where selectivity and product purity are paramount. By carefully managing temperatures, chemists can steer reactions to favor the formation of desired products while minimizing side reactions and degradation of sensitive compounds. This level of control is indispensable in the synthesis of complex pharmaceuticals, fine chemicals, and in various analytical procedures where precision and reliability are essential.
Freeze Drying
Freeze drying is a freeze drying process in which water is removed from the product after it has been frozen and placed under vacuum, thus allowing the ice crystals to pass directly from the solid state to the vapour state. The process is based on the physical phenomenon of sublimation, which allows a direct transition from the solid to the liquid state. Lyophilisation is mainly used in pharmaceutical and biotechnological research and the industrial production of cosmetic products or drugs such as tablets but also in the drying of foodstuffs and the preservation of archival materials (i.e. books and documents).
Solvent Recovery
Solvent Recovery is based on the fact that the vapor of a boiling mixture will be richer in low boiling point components such as alcohols, acetones, aliphatic hydrocarbons and, ketones. When the vapor is cooled and condensed, the liquid condensate becomes a valuable product that can be sold back into the industrial marketplace. A solvent recovery system is the preferred recycling method among many industrial manufacturers since it provides a cost-effective solvent recuperation solution and minimizes adverse environmental effects. Only natural refrigerant (AIR) is used in multiple stages of the refrigeration process. The ultra-low temperature process is realized with a MIRAI INTEX air cycle refrigeration solution MIRAI Cold.
Process Cooling
Large industrial plants or facilities need to cool their production processes almost all year round. Mirai solution is not only environmentally friendly and free of any F-gases or oils, but it is also extremely efficient. The primary role of cooling systems in industrial refrigeration systems is not only to be extremely efficient, reliable and cost-effective, but also to improve the initial production processes and contribute to environmental protection.
Blood Plasma Freezing
For demanding processes in the manufacture of pharmaceutical and biotechnological products in the temperature range down to -90 °C.
CLOSED CYCLE MACHINES APPLICATIONS
CLOSED CYCLE MACHINES APPLICATIONS
LNG Production
LNG Production
Advanced solution precisely engineered for the precooling and liquefaction of biomethane
Chemical Processes
Chemical Processes
Chemical processes often involve reactions that can be exquisitely sensitive to temperature changes. Cold temperatures play a crucial role in many of these processes by slowing down reaction rates, thus offering greater control over the reaction's outcome. This is particularly important in reactions that are highly exothermic, where excessive heat can lead to runaway reactions or in processes where selectivity and product purity are paramount. By carefully managing temperatures, chemists can steer reactions to favor the formation of desired products while minimizing side reactions and degradation of sensitive compounds. This level of control is indispensable in the synthesis of complex pharmaceuticals, fine chemicals, and in various analytical procedures where precision and reliability are essential.
Freeze Drying
Freeze Drying
Freeze drying is a freeze drying process in which water is removed from the product after it has been frozen and placed under vacuum, thus allowing the ice crystals to pass directly from the solid state to the vapour state. The process is based on the physical phenomenon of sublimation, which allows a direct transition from the solid to the liquid state. Lyophilisation is mainly used in pharmaceutical and biotechnological research and the industrial production of cosmetic products or drugs such as tablets but also in the drying of foodstuffs and the preservation of archival materials (i.e. books and documents).
Solvent Recovery
Solvent Recovery
Solvent Recovery is based on the fact that the vapor of a boiling mixture will be richer in low boiling point components such as alcohols, acetones, aliphatic hydrocarbons and, ketones. When the vapor is cooled and condensed, the liquid condensate becomes a valuable product that can be sold back into the industrial marketplace. A solvent recovery system is the preferred recycling method among many industrial manufacturers since it provides a cost-effective solvent recuperation solution and minimizes adverse environmental effects. Only natural refrigerant (AIR) is used in multiple stages of the refrigeration process. The ultra-low temperature process is realized with a MIRAI INTEX air cycle refrigeration solution MIRAI Cold.
Process Cooling
Process Cooling
Large industrial plants or facilities need to cool their production processes almost all year round. Mirai solution is not only environmentally friendly and free of any F-gases or oils, but it is also extremely efficient. The primary role of cooling systems in industrial refrigeration systems is not only to be extremely efficient, reliable and cost-effective, but also to improve the initial production processes and contribute to environmental protection.
Blood Plasma Freezing
Blood Plasma Freezing
For demanding processes in the manufacture of pharmaceutical and biotechnological products in the temperature range down to -90 °C.