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Industrial air-cooled chiller units use air as the cooling medium and do not require a cooling water system, providing a stable cooling source for industrial scenes. Adapting to multiple fields such as chemical engineering and electronics, meeting high load continuous operation, easy installation and maintenance, it is the preferred choice for industrial energy-saving refrigeration.

Customized according to demand, suitable for non-standard voltage, special environments, extreme temperatures and other special scenarios, providing exclusive cooling solutions. Skid-mounted integrated chiller is an energy-efficient refrigeration device characterized by ease of installation, stable operation, and simple maintenance. It is widely utilized across various sectors, including server rooms, hospitals, pharmaceutical facilities, and cold storage warehouses. Specifically, the skid-mounted integrated chiller—whether of the screw or scroll compressor type—is a self-contained refrigeration unit that integrates all essential components into a single assembly, including the refrigeration system, electrical control system, water circulation system, refrigerant circuit, cooling water system, pumps, and valves. Its operating principle involves utilizing a refrigerant to absorb heat from the surrounding environment and subsequently releasing that heat into the air or water, thereby achieving the objective of cooling. Compared to traditional split-system chiller units, the skid-mounted integrated chiller offers distinct advantages such as a compact structure, convenient installation, and stable operational performance.

Engineered for industrial applications, our air-cooled twin-screw chillers deliver high-efficiency cooling with reliable temperature control ranging from 5°C to 35°C. Featuring a semi-hermetic screw compressor and a water-free cooling system, these units offer strong climate adaptability (-10°C to 45°C) and flexible deployment for new energy sectors like battery production. They utilize internally threaded copper pipes for superior heat transfer, ensuring energy savings and easy maintenance.

In the field of refrigeration systems and applied technologies, our company possesses over 20 years of extensive experience and has achieved remarkable success. Yiyun perfectly integrates advanced design technology for low-temperature ethylene glycol/brine chiller units, precise programmable control technology, and the outstanding reliability of low-temperature explosion-proof compressors into a single unified system. Our units are available in various configurations tailored to different industries, including: low-temperature explosion-proof chillers for reactors, petroleum, chemicals, coal, textiles, and pharmaceuticals; as well as low-temperature chillers for food, lithium salts, laboratories, fragrances, single crystals, and divalent nickel, along with other facilities requiring artificial low-temperature refrigeration. Configurations are available for temperature applications ranging from 0°C to -80°C.

An ultra-low temperature chiller (ranging from -80°C to -40°C) is a machine capable of lowering the temperature of solids, gases, or liquids to extremely low levels. Its operating principle is primarily based on vapor compression refrigeration; specifically, a cascade refrigeration design is employed for temperatures as low as -50°C, while a single-unit, two-stage compression system is utilized for temperatures above -40°C. The underlying mechanism involves compressing a refrigerant into a high-temperature, high-pressure gas; this gas is then cooled by a condenser into a high-pressure liquid, which subsequently expands through an expansion valve into a low-temperature, low-pressure gas—thereby achieving the objective of lowering the target object's temperature. While this principle is similar to that of conventional refrigeration systems, our company distinguishes itself through its superior expertise and performance in the ultra-low temperature domain.  Ultra-low temperature chillers are widely utilized in research and development across various fields, including life sciences, chemistry, and physics. For instance, in the biomedical sector, these chillers are indispensable for the preservation of cells, lyophilized samples, tissues, organs, and even entire organisms; indeed, many groundbreaking advancements in biomedical research would be impossible without the application of ultra-low temperature technology. Furthermore, ultra-low temperature chillers are extensively integrated into manufacturing processes within industries such as semiconductors and optoelectronics—specifically for applications involving ultra-high vacuum cooling and pulse valve refrigeration.  The advent of ultra-low temperature chillers has brought immense convenience to scientific research and industrial development. Although these units were considered relatively expensive equipment just a decade ago, years of dedicated R&D by our company's senior engineers have resulted in a significant reduction in manufacturing costs; nevertheless, users still require trained professionals to handle their operation and maintenance.

The air-cooled chiller unit adopts air cooling method, eliminating the need for cooling water system, cooling water pump and pipeline system, avoiding condenser scaling and water pipe blockage in areas with poor water quality, and saving water resources. This low-temperature model is a common cooling system in industrial refrigeration equipment products, and is the most economical and simple model for maintenance and repair. Air cooled chillers require slightly higher one-time investment than water-cooled chillers, but maintenance costs are more economical. Air cooled chillers have higher noise and volume compared to water-cooled chillers, so it is recommended to install them outdoors. Most air-cooled units are installed in ventilation areas such as underground rooms and rooftops.   Product advantages Portable low-temperature, fast cooling, low power consumption, simple operation, safe and reliable.  

An air-cooled chiller uses air as a cooling source to cool water at room temperature to a certain temperature through the compressor of the chiller. The cooling device is driven by a fan for heat dissipation. The main system of the chiller includes refrigerant circulation system, water circulation system, and electrical self-control system. In the application field, laser cutting machines, welding robots, and 3D printers are cooled. The circulating water pump is responsible for extracting water from the internal water tank to the equipment that the user needs to cool. The chilled water takes away the heat and the temperature rises, then returns to the chilled water tank for circulating cooling.   Product advantages Plug and play, low-noise design, intelligent energy-saving, and easy maintenance.  

The air-cooled screw type low temperature chiller unit exchanges heat with outdoor air through a finned air cooled condenser (equipped with an axial flow fan and adjustable wind speed). After the refrigerant liquefies, it enters the evaporator through a throttling device to cool the circulating water, without the need for a cooling tower or circulating water pump. Flexible deployment, can be installed on rooftops, outdoor open spaces, etc. without the need for dedicated computer rooms; Climate adaptability: Stable operation in environments ranging from -10℃ to 45℃, suitable for winter and summer scenarios in the north and south. Unique design features: The fan adopts an external rotor axial flow fan (variable frequency), and the outdoor protection has a shell with IP55 protection. It is rain resistant, dustproof, and equipped with a dust net (optional) design.

The high and low-temperature liquid cooling test machine is precision testing equipment that integrates high temperature, low temperature, rapid temperature change, and liquid cooling/heating. It is mainly used to simulate product performance testing in extreme temperature environments. Its core function is to quickly transfer heat through liquid media (water, ethylene glycol solution, silicone oil, etc.), achieving precise temperature control of the measured substance (typical temperature range: -45℃ to +85℃). It is widely used in high-tech fields such as new energy, semiconductors, aerospace, etc. With the rapid development of new energy and semiconductor industries, efficient, intelligent, and environmentally friendly high and low-temperature liquid-cooled testing machines will become the mainstream of the industry, helping enterprises shorten research and development cycles and improve product reliability.

As core equipment in the industrial refrigeration sector, the air-cooled screw chiller is primarily engineered to meet the low-temperature cooling demands of industries such as printing, ice-making, electronics, chemical processing, and pharmaceuticals. Utilizing ambient air as the heat rejection medium, the unit features a robust screw compression architecture that achieves precise temperature reduction through the physical phase change of the refrigerant. 

Natural cooling principle: By increasing the air cooler, the return chilled water is pre-cooled. When the ambient temperature is sufficiently low, the outlet water from the air cooler meets the usage requirements, and the chiller unit does not need to operate. When the ambient temperature is not low enough, the outlet water from the air cooler fails to meet the usage requirements, necessitating the activation of the chilled water unit to supplement cooling capacity. When the ambient temperature is excessively high and free cooling is unachievable, the return water bypasses the air cooler through a three-way valve and directly enters the evaporator, relying entirely on the chilled water unit for cooling. The natural cooling system resembles a conventional chilled water system, connecting the outdoor natural cooling unit to the indoor chilled water demand side via piping. The natural cooling function is internally converted by the chilled water unit, eliminating the need for compressor operation in winter and significantly enhancing system reliability.

The water-coled low-temperature chiller unit can accurately control temperature, save energy and safety, and is suitable for low-temperature process requirements such as chemical and pharmaceutical, new energy, and material processing. The application fields are very wide: chemical and pharmaceutical low-temperature crystallization, fermentation tank temperature control, vaccine production, traditional Chinese medicine concentration, new energy, lithium battery cooling, fuel cell cooling, battery low-temperature testing, material processing: metal cryogenic treatment, carbon fiber cooling optical glass foming, scientific research: university laboratories, military environment simulation, computing center cooling.