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Top 10 Best Air Separation Unit Manufacturers & Brands in 2023


Top Air Separation Equipment Manufacturers

1. Hangyang

Country: China

Founded: 1950

About the company:

Hang Yang Group Co., Ltd., established in 1950 and listed on the Shenzhen Stock Exchange in 2010 (stock code: 002430), is a world-renowned provider of air separation equipment and low-temperature petrochemical equipment, and a pioneer and leader in China’s gas industry.

Over the years, Hang Yang has adhered to a development strategy that combines a focus on both ends, horizontal expansion, and high-quality products. Today, they operate 48 professional gas companies across the country, with a total oxygen production capacity of over 2.5 million Nm3/h.

The company primarily supplies gas through pipelines, on-site production, small storage units, and liquid retail. Additionally, they offer rare gases, ultra-high purity gases, bulk electronic gases, and high-end medical gases, among others. Hang Yang also provides integrated solutions for centralized gas supply in industrial gas parks, and can develop special gases as required.

Hang Yang has also established a hydrogen industry development center to advance hydrogen production, storage, and liquefaction technologies and equipment. They are dedicated to exploring new energy and energy-saving energy storage technologies, as well as developing energy-related gas products. This helps China achieve its dual carbon goals.

The company has been recognized with several awards, including the National Manufacturing Industry Single Champion Demonstration Enterprise, National Service-Oriented Manufacturing Demonstration Enterprise, China Quality Award Nomination, and the National Science and Technology Progress Award. Hang Yang is committed to creating a low-carbon and green society and becoming a world-class enterprise in the gas industry.

2. Linde

Country: Britain

Founded: 1879

About the company:

Linde is a premier industrial gas and engineering company that operates on a global scale. Utilizing advanced technologies, services, and solutions, Linde supports its customers in achieving greater success and contributing to sustainable development for the planet.

With a diverse range of terminal markets, including chemicals and energy, food and beverage, electronics, healthcare, manufacturing, metals, and mining, Linde has a broad impact. The industrial gases produced by the company are utilized in a variety of applications, such as hospital oxygen, high-purity and specialty gases in the electronics industry, and hydrogen for clean energy purposes.

In addition, Linde provides cutting-edge gas treatment solutions to enhance customer business performance, increase efficiency, and reduce carbon emissions.

Headquartered in Shanghai, Linde Greater China employs over 2,400 individuals and operates more than 100 facilities across North, East, South, and West China. As a leading gas supplier and engineering company in the country, Linde has established partnerships with numerous leading customers in the chemical, petrochemical, metallurgical, manufacturing, electronics, food, and medical industries, supporting their success through its high-quality technologies, services, and solutions.

3. Air Liquide

Country: France

Founded: 1902

About the company:

Air Liquide Group is a global leader in the fields of gases, technologies, and services for both industry and health. With a presence in 78 countries and regions, the company employs approximately 64,500 individuals and serves over 3.8 million customers and patients.

The Group has had a presence in China since 1916 and has been providing air separation equipment to the country since the 1970s. Over the years, the company has experienced steady growth and now operates nearly 100 factories across more than 40 cities in China, with a workforce of over 5,000 employees.

The Group’s main areas of business in China include industrial and medical gas operations, family healthcare services, engineering and manufacturing, as well as global market and technology ventures, including the Shanghai Innovation Park.

With a focus on major coastal industrial regions in China, the company continues to expand its reach into central, southern, and western regions.

Air Liquide is dedicated to achieving profitable growth and sustainable development through exceptional performance and fulfilling its responsibilities. Leveraging the Group’s strategy and worldwide resources, the company focuses on energy, the environment, high-tech, health, and other key sectors to tackle challenges and uncover new market opportunities.

Thanks to the strong support of its professional team, the company prioritizes providing customers with dependable services and high-value solutions while upholding its corporate social responsibility.

4. KF

Country: China

Founded: 1958

About the company:

Kaifeng Air Separation Group Co., Ltd. was established in 1958 and commenced operations in 1965. Over the past 50+ years, the company has undergone extensive innovation and development and has become the backbone enterprise of China’s air separation equipment manufacturing industry. It is a subsidiary of Henan Energy and Chemical Group.

The company’s primary offerings include complete sets of large and medium-sized air separation and gas liquefaction support equipment, high-pressure tube wound heat exchangers, metal-framed cold storage units, chemical pressure vessels, environmental protection equipment, and engineering services, as well as a variety of chemical gas cryogenic separation devices, including liquid nitrogen washing, hydrocarbon separation, natural gas and coal bed gas separation, and liquefaction devices.

Kaifeng Air Separation Plant has been granted design and manufacturing licenses for A1 and A2 pressure vessels and special equipment GC pressure pipes. Additionally, the company holds an American ASME authorization certificate and “U steel seal” and has received ISO9001 quality system certification and GB/T19022 measurement certification. It is recognized as a national first-class measurement unit.

The annual production capacity of large and medium-sized air separation equipment at Kaifeng Air Separation Plant is 800,000 cubic meters, with a product tonnage of 30,000 tons. The facility also has an annual output of 25 cold storage units, each with a capacity of 500 tons, and 10 sets of urban sewage equipment, capable of processing 100,000 tons of waste per day. The annual output of chemical pressure vessels is 8,000 tons. Additionally, the plant is one of China’s three major design and manufacturing bases for high-pressure coiled tube heat exchangers.

The Kaifeng Air Separation Plant has provided over 1,000 sets of large and medium-sized air separation equipment and gas liquefaction equipment for industries such as metallurgy, petrochemicals, fertilizer, coal chemicals, new energy, and aerospace, both domestically and internationally. The plant has exported more than 50 sets of equipment to countries in Southeast Asia, the Middle East, Africa, Western Europe, and beyond, solidifying its status as a leading air separation facility globally.


Country: China

Founded: 1966

About the company:

Sichuan Air Separation Equipment (Group) Co., Ltd. (referred to as “the Group”), is a national high-tech enterprise with a focus on low-temperature technology, located in the Tianfu New District of Chengdu. The Group covers an area of over 800,000 square meters and has a total building area of more than 300,000 square meters.

Established in 1966, the Group has seen its business grow over the years. It now has 21 wholly-owned and holding subsidiaries, 7 joint ventures, and boasts total assets of over 5 billion yuan and annual sales revenue of over 3 billion yuan.

The Group is organized into five business segments: the Cryogenic Technology Research Institute, Engineering, Cryogenic Equipment, Industrial Gas, and General Machinery. The Engineering segment provides complete equipment and system engineering services for air separation, natural gas liquefaction, and multi-component gas low-temperature separation, including engineering, installation, and commissioning.

The Manufacturing segment includes plate fin heat exchangers, cryogenic liquid storage and transportation equipment, cryogenic machinery such as turbine expanders and aluminum towers, various steel pressure vessels, gas compressors, cryogenic and special valves, cryogenic liquid cylinders, super insulated cryogenic infusion lines, and argon filling stations in LNG facilities.

The Group has production bases and companies for natural gas liquefaction plants distributed across North China, East China, Northwest China, South China, and other regions.

The company provides equipment manufacturing and engineering services to a wide range of industries, including steel, nonferrous metallurgy, coal chemicals, petrochemicals, energy, electronics, and more.

Over the years, it has received over 20 national, provincial, and municipal science and technology awards and has been recognized with 30 quality honors, including the National Quality Gold Award. The company has also developed 65 domestically initiated products, 14 internationally advanced products, and holds 71 national patents.

The company has implemented and continuously maintains an effective ISO 9001 quality management system. Its equipment has been granted A1, A2, C2 pressure vessel design and manufacturing licenses, as well as a B3 gas cylinder manufacturing license. Additionally, the company holds an American ASME authorization certificate, U and U2 steel seals, and EU CE certification, providing assurance for the quality of its products.

The company’s low-temperature equipment and engineering projects are sold to over 30 countries and regions worldwide, including Europe, South America, the Middle East, South Asia, Southeast Asia, Africa, and more. The company’s products and services are built on trust and have established a positive reputation among both domestic and international customers.

6. Air Products

Country: USA

Founded: 1940

About the company:

Air Products (NYSE code: APD) is a leading industrial gas company and a member of the Fortune 500, with a rich 80-year history. The company focuses on serving the energy, environment, and emerging markets and provides a range of industrial gases, equipment, and application expertise to customers across various industries, including oil refining, chemicals, metals, electronics, processing and manufacturing, food and beverage, and more.

Air Products is also a prominent global supplier of LNG technology and equipment. The company develops, designs, builds, owns, and operates several large-scale industrial gas projects, including gasification projects that convert rich natural resources into synthetic gas for the production of high-value electricity, fuel, and chemicals, carbon capture projects, and a world-scale hydrocarbon-free project to aid in global transportation and energy conversion.

In fiscal year 2020, the company had operating sales in 50 countries and regions totaling $8.9 billion and has a current market value of approximately $60 billion.

At Air Products Company, over 19 employees from diverse backgrounds around the world are passionate, skilled, and dedicated, guided by the company’s higher goals. They strive to create innovative solutions that benefit the environment, promote sustainable development, and address the challenges faced by customers, communities, and the world.


Country: China

Founded: 1984

About the company:

FORTUNE is a renowned manufacturer of liquefied natural gas plants, air separation units, coil heat exchangers, and low-temperature cold boxes. The company has been certified by ISO14001:2004, ISO9001:2008, OHSAS18001, and ASME.

FORTUNE has a proven track record of designing, manufacturing, and delivering over 700 sets of air separation plants, LNG plants, and cryogenic liquid tanks in regions such as China, Southeast Asia, the Middle East, Africa, Central Asia, and Latin America.

Their products are exported to countries and regions such as Japan, Russia, the Middle East, Central and South America, Southeast Asia, Central Asia, Africa, and more.

FORTUNE is dedicated to becoming the world’s leading supplier of cryogenic system solutions, approaching every project with a professional attitude and extensive experience. With extensive experience in LNG plants, air separation plants, and other low-temperature equipment, they are eager to provide you with the best solutions.


Country: Japan

Founded: 1910

About the company:

TAIYO NIPPON SANSO Co., Ltd. was founded on October 30, 1910 and has since provided stable and reliable industrial gas supplies for various industries, playing a crucial role in their development.

Industrial gases such as oxygen, nitrogen, argon, and acetylene are essential to industries such as steel, chemical, automobile, construction, shipbuilding, and food. TAIYO NIPPON SANSO ensures that customers have a steady supply of these gases whenever they are needed.

In addition to industrial gases, the company also offers a range of gas-related equipment, services, and applications that meet customers’ requirements. TAIYO NIPPON SANSO has a wealth of technical expertise, which they have built up over the years and use to provide customers with the best solutions.

As a member of the Nippon Oxygen Holding Group, TAIYO NIPPON SANSO Group leverages its extensive experience and technology development capabilities to provide reliable and secure operations for various industries, including steel, chemistry, electronics, automobile, construction, shipbuilding, food, and healthcare.


Country: China

Founded: 2003

About the company:

Kaifeng HURNGHE Air Separation Group Co., Ltd. is a high-tech enterprise that specializes in the manufacture of air separation equipment, new energy equipment, gas compressors, and industrial gas supplies. The company has a strong portfolio of core intellectual property rights.

The HURNGHE Air Separation Plant is committed to developing high-tech products that provide customers with advanced technology, stable operation, energy efficiency, and enhanced performance. Customers who choose HURNGHE Air Separation Plant can expect long-term benefits and mutually beneficial cooperation.

The company boasts 60 national invention patents and utility model patents, as well as a fluid dynamics experimental platform for refining pomegranate towers. Additionally, HURNGHE Air Separation Plant has patented technology for manufacturing energy-efficient air separation equipment and is a leader in the high-end market for argon production technology. The company also has an industry-leading R&D platform for high-purity ammonia products.

Their centrifugal air compressor offers high cost performance, and their reciprocating gas compressor boasts unique long-term stability. The company’s products have a comprehensive energy consumption index that is 1 to 5 percentage points lower than the industry average. To date, the company has successfully put over 500 sets of air separation equipment into the market. Additionally, they use advanced biological natural gas purification technology to ensure the stability and efficiency of their products.

The HURNGHE Air Separation enterprise has received certification for its quality management system under GBT19001-2008. The company holds A1 and A2 pressure vessel manufacturing licenses, as well as A1 and A2 pressure vessel design licenses, GC pressure pipeline design licenses, and GC2 pressure pipeline installation, reconstruction, and maintenance licenses.

The company has implemented a strict quality assurance system and established a comprehensive quality control network. They continuously research and improve their on-site manufacturing processes to ensure high-quality products.

The products are used in a variety of industries, including metallurgy, petrochemical, chemical fertilizer, coal chemical, and building materials, and are exported to countries such as Nigeria, Uzbekistan, Turkey, and others.

10. SOPC

Country: China

Founded: 1997

About the company:

Suzhou Oxygen Generator Co., Ltd. is a professional enterprise that specializes in the design, production, and service of gas separation and liquefaction equipment. The company’s main business is the production and sales of gas separation and liquefaction equipment and liquefied natural gas.

The company’s product portfolio includes large and medium-sized air separation equipment, small air separation equipment, low-temperature liquid storage and transportation equipment, and petrochemical equipment. The petrochemical equipment mainly includes natural gas liquefaction equipment, natural gas cracking hydrogen production equipment, and chemical tail gas purification equipment.

Suzhou Oxygen Generator Co., Ltd. holds A2, C2, C3 pressure vessel design and manufacturing certificates, GC pressure pipeline design certificates, ASME “U” and “U2” certifications, Korean KGS quality management certifications, and an ISO9001 quality assurance system.

The company also holds CCS factory certifications, offering comprehensive EPC services, including technical consulting, scheme design, product manufacturing, installation and commissioning, personnel training, spare parts supply, and technical support.

The company has a strong cryogenic technology development capability, serving as a provincial technology center for cryogenic technology research, development, and design. The company has more than 50 designers with bachelor’s degrees or higher, including 12 with senior technical titles and 7 with master’s degrees.

he company also has more than 10 professional design software programs, more than 40 core technology intellectual property rights, and 11 invention patents for booster turbine expanders, natural gas liquefaction equipment, and high ammonia equipment.

The company’s high-tech products account for over 70% of its sales each year. In particular, the company uses 3D solid package design, 3D flow technology, dynamic solid simulation, and PDM software systems in the design of its turbine expanders and package projects.

The company’s leading products include:

  1. Medium and large-scale air separation and liquefaction equipment, and its main components, such as purifiers, rectification towers, turbine expanders, oxygen compressors, nitrogen compressors, cryogenic liquid storage tanks, tank cars, and tank containers.
  2. The production and sales of LNG, which are managed by Suzhou Huafeng LNG Co., Ltd., a subsidiary of the company.

These products are used in industries such as metallurgy, petrochemical, machinery, electronics, building materials, magnetic materials, textiles, food, and more. The products are exported to 47 countries and regions, including the United States, Russia, India, Ukraine, Kazakhstan, North Korea, Laos, Vietnam, Brunei, Sudan, Syria, Cambodia, the Philippines, Bangladesh, Nigeria, Indonesia, and others.

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