Introduction to Air Separation Unit
An air separation unit (ASU) is a crucial industrial facility that separates atmospheric air into its primary components, mainly nitrogen, oxygen, and argon, through processes such as cryogenic distillation or pressure swing adsorption. These separated gases have a wide range of applications across various industries. Oxygen is widely used in steelmaking, chemical production, and medical applications. Nitrogen is utilized for blanketing, purging, and food preservation, while argon is essential in metal fabrication and welding. Given the diverse and extensive uses of these gases, the demand for efficient and reliable air separation units is high. In China, there are several leading suppliers in this field, and here are the top 10 in 2026. Air Separation Unit
1. Hanturbo Technology (Zhejiang) Co., Ltd.
Hanturbo Technology (Zhejiang) Co., Ltd. is a high – tech enterprise specializing in the research, development, production, and sales of gas compression and separation equipment. The company has a strong R & D team composed of industry experts and professional technicians. They are committed to continuous innovation and improvement of product performance.
- Website: https://www.hanturbo-gas.com/
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Features in Air Separation Unit:
- Advanced technology: The company adopts the latest cryogenic distillation and adsorption technologies in its air separation units, ensuring high – purity gas separation.
- Customization: It can customize air separation units according to the specific requirements of different industries and customers, such as different production capacities and gas purity levels.
- Energy – efficient design: The units are designed with energy – saving features, which can significantly reduce operating costs for customers.
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Advantages:
- High – quality products: Strict quality control measures are implemented throughout the production process, ensuring the reliability and stability of the air separation units.
- Excellent after – sales service: The company provides comprehensive after – sales service, including installation, commissioning, maintenance, and technical support.
2. Hangzhou Hangyang Co., Ltd.
Hangzhou Hangyang Co., Ltd. is a well – known and established enterprise in the field of air separation technology in China. With a history of several decades, it has accumulated rich experience in the research, development, and manufacturing of air separation units. The company has a large – scale production base and advanced manufacturing equipment.
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Features in Air Separation Unit:
- Large – scale production: It can produce large – scale air separation units with high production capacities, meeting the needs of large – scale industrial projects.
- High – end technology: Has made significant breakthroughs in high – efficiency heat exchange and distillation technologies, improving the separation efficiency of air separation units.
- Automation: The units are highly automated, which reduces the need for manual operation and improves production efficiency.
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Advantages:
- Brand influence: It has a high – profile brand in the industry, trusted by many customers at home and abroad.
- Diverse product portfolio: Offers a wide range of air separation units with different specifications and configurations to meet the diverse needs of different industries.
3. Wison Engineering Services Co., Ltd.
Wison Engineering Services Co., Ltd. is a comprehensive engineering company that has a strong foothold in the field of air separation unit engineering. The company provides integrated solutions for air separation projects, from project planning, design, equipment procurement, to installation and commissioning.
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Features in Air Separation Unit:
- Integrated solutions: Customers do not need to worry about different aspects of the project as the company takes care of the whole process.
- International standard design: The designs of its air separation units comply with international standards, ensuring high – quality and reliable performance.
- Project management expertise: With professional project management teams, it can ensure the smooth progress of air separation projects and meet the deadlines.
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Advantages:
- Engineering experience: Has rich experience in large – scale engineering projects, which gives it an edge in handling complex air separation projects.
- Global service network: Can provide services to customers around the world, facilitating international business cooperation.
4. Shenyang Blower Works Group Corporation
Shenyang Blower Works Group Corporation is a leading manufacturer of industrial blowers and compressors, which are key components in air separation units. The company has a long – standing reputation for high – quality products and advanced manufacturing technology.
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Features in Air Separation Unit:
- High – performance compressors: The compressors produced by the company have high efficiency, low vibration, and long – term reliability, which are crucial for the stable operation of air separation units.
- Compressor customization: Can customize compressors according to the specific requirements of different air separation unit models, ensuring optimal performance.
- System integration ability: It can integrate its compressors well into the overall air separation unit system, improving the overall performance of the unit.
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Advantages:
- Strong R & D strength: Continuously invests in research and development to improve the performance and quality of its products.
- After – sales service network: Has a wide – spread after – sales service network to provide timely maintenance and repair services for its products.
5. Sichuan Air Separation Plant (Group) Co., Ltd.
Sichuan Air Separation Plant (Group) Co., Ltd. is a large – scale enterprise focusing on air separation equipment manufacturing. It has a complete industrial chain, from raw material procurement to the production and sales of finished air separation units.
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Features in Air Separation Unit:
- Complete product range: Offers various types of air separation units, including small – scale, medium – scale, and large – scale units, suitable for different industries and applications.
- Localized production advantages: With a local production base, it can reduce production costs and improve the timeliness of product delivery.
- Technological innovation: Actively promotes technological innovation in air separation technology, continuously improving the performance and efficiency of its products.
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Advantages:
- Cost – effectiveness: Can provide cost – effective air separation units due to its complete industrial chain and localized production.
- Industry experience: Has decades of experience in the air separation industry, which enables it to better understand customer needs and market trends.
6. Kaifeng Air Separation Group Co., Ltd.
Kaifeng Air Separation Group Co., Ltd. is an important player in the domestic air separation equipment market. The company is committed to providing high – quality air separation solutions for customers in different industries. It has a professional R & D and production team.
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Features in Air Separation Unit:
- Specialized design: Can design air separation units according to the special requirements of different industries, such as the chemical industry, metallurgical industry, etc.
- Energy – saving technology application: Actively applies energy – saving technologies in its air separation units, helping customers reduce energy consumption and operating costs.
- Product reliability: Through strict quality control, the products have high reliability and long service life.
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Advantages:
- Industry reputation: Has a good reputation in the industry for its high – quality products and excellent service.
- Technical support: Can provide strong technical support to customers, including on – site installation guidance and troubleshooting.
7. Yantai Jereh Oilfield Services Group Co., Ltd.
Yantai Jereh Oilfield Services Group Co., Ltd. is mainly known for its oilfield equipment and services, but it also has a certain presence in the air separation unit field. The company has rich experience in the energy industry and can combine its energy – related knowledge with air separation technology.
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Features in Air Separation Unit:
- Energy – related application: It can provide air separation units specifically designed for energy – related applications, such as natural gas purification using the separated gases.
- Integration with other systems: Can integrate air separation units with other oilfield or energy – related systems, providing a more comprehensive solution.
- Remote monitoring and control: The air separation units are equipped with remote monitoring and control systems, which enable real – time monitoring and adjustment of the unit’s operation.
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Advantages:
- Energy industry experience: Using its experience in the energy industry, it can understand the unique needs of energy – related customers and provide more targeted solutions.
- Technological innovation ability: Continuously innovating in the integration of air separation technology and energy – related systems.
8. Nanjing Industrial Technology Development Co., Ltd.
Nanjing Industrial Technology Development Co., Ltd. is a technology – driven enterprise focusing on air separation unit manufacturing. The company emphasizes the application of new materials and new technologies in its products.
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Features in Air Separation Unit:
- New material application: Uses new materials in the manufacturing of air separation units, which can improve the corrosion resistance and durability of the equipment.
- Digitalized design: Adopts digitalized design methods, which can shorten the design cycle and improve design accuracy.
- Intelligent operation: The air separation units are equipped with intelligent control systems, enabling automatic adjustment of the operating parameters according to the actual situation.
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Advantages:
- Technological leadership: Leading in the application of new technologies and materials in the air separation unit field, which gives it a competitive edge.
- Research and innovation: Actively conducts research and development cooperation with universities and research institutions to promote technological progress.
9. Anshan Steel Group Hongda Energy – Saving Technology Co., Ltd.
Anshan Steel Group Hongda Energy – Saving Technology Co., Ltd. has a close connection with the steel industry. It has unique advantages in providing air separation units for steel – making processes.
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Features in Air Separation Unit:
- Steel – industry – specific design: The air separation units are designed to meet the specific requirements of the steel – making process, such as providing high – purity oxygen for steelmaking.
- Energy – saving for steel plants: Focuses on energy – saving technologies in the air separation units for steel plants, helping to reduce the overall energy consumption of the steel – making process.
- Integration with steel – making process: Can integrate the air separation unit well with the steel – making process, improving the overall production efficiency of the steel plant.
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Advantages:
- Steel – industry experience: Has in – depth understanding of the steel – making process, which enables it to provide more suitable air separation solutions for steel plants.
- Joint development with steel plants: Can cooperate with steel plants for joint development and improvement of air separation technologies.
10. Linyi Zhongtian Gas Separation Equipment Co., Ltd.
Linyi Zhongtian Gas Separation Equipment Co., Ltd. is a medium – sized enterprise specializing in air separation unit production. It focuses on providing high – quality and cost – effective air separation solutions for small and medium – sized enterprises.
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Features in Air Separation Unit:
- Cost – effective products: Can offer relatively low – cost air separation units without sacrificing quality, which is suitable for small and medium – sized enterprises with limited budgets.
- Quick delivery: Has an efficient production and supply chain management system, which can ensure quick delivery of products to customers.
- After – sales training: Provides after – sales training services to customers, enabling them to operate and maintain the air separation units more effectively.
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Air Separation Unit Advantages:
- Customer – oriented service: Focuses on meeting the needs of small and medium – sized enterprises, providing personalized service and support.
- Adaptability: Can quickly adapt to the changing market demands of small and medium – sized enterprises.
