Top 10 Air Separation Unit Manufacturer in The World

Linde

Company Overview

Linde Engineering is a global leader in the design and supply of air separation units, with decades of experience in cryogenic and non-cryogenic gas processing. The company offers a wide range of ASUs from small on-site plants to large-scale complexes exceeding 5,000 tons per day of oxygen production. Linde's turnkey (Engineering, Procurement, and Construction) services ensure reliable project delivery for industries such as petrochemicals, metallurgy, and clean energy.

Air Liquide

Company Overview

Air Liquide, a global giant in gases, technology, and services, provides highly efficient air separation units tailored to the needs of industries worldwide. Their ASUs range from modular units to world-scale facilities. The company also provides services and long-term operational support, making it a trusted partner for steel, electronics, energy, and healthcare sectors.

nEWTEK GROUP

Company Overview

NEWTEK GROUP is a leading high-tech enterprise in the field of Air Separation Units (ASU) and industrial gas solutions. Based in Zhejiang, China, the company has rapidly grown into a global player with over 9,000 installations worldwide, serving industries such as metallurgy, petrochemicals, glass, energy, and healthcare.

In the air separation sector, NEWTEK is recognized for its capability to design and deliver large-scale cryogenic ASUs, ensuring stable and efficient production of oxygen, nitrogen, and argon. Their solutions cover everything from conceptual design and process optimization to (Engineering, Procurement, and Construction) execution and turnkey project delivery. By providing a complete service chain - from engineering design, equipment manufacturing, site construction, installation, commissioning, to operator training and after-sales support - NEWTEK guarantees reliability and efficiency for customers worldwide.

In addition to cryogenic air separation units, NEWTEK also specializes in PSA oxygen generators, focusing on Modular PSA Oxygen Generator, Twin-tower PSA Oxygen Generator, and Container PSA Oxygen Generator to meet on-site oxygen needs. These PSA systems are widely used in the medical, glass, steel, chemical, and wastewater treatment industries, providing customers with a cost-effective, continuous oxygen supply.

To meet diverse industrial requirements, NEWTEK provides a comprehensive range of gas supply solutions, including liquid oxygen plants/ liquid nitrogen plants, VPSA oxygen plants, Nitrogen Plant, and skid-mounted modular systems. With advanced process control technology, optimized energy consumption, and a commitment to customized engineering, NEWTEK stands out as a trusted partner for both small-scale facilities and world-class industrial complexes.
With a strong foundation in innovation, turnkey delivery and customer-oriented services, NEWTEK GROUP has become one of the most competitive and professional air separation unit manufacturers and PSA oxygen generator manufacturers in the global market.
 

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Air Products

Company Overview

Air Products is a major U.S.-based industrial gases company with decades of ASU technology expertise. Their ASUs are designed for reliability and efficiency, serving industries such as refining, chemicals, metals, and energy. The company also integrates ASUs into hydrogen production and clean energy projects, offering both sale-of-gas models and turnkey plant supply.

TNSC

Company Overview

TNSC, part of the Nippon Sanso Holdings , provides innovative air separation and gas supply solutions across Asia and beyond. With strong technological expertise, the company offers both cryogenic and non-cryogenic ASUs, focusing on energy efficiency and reliable long-term operation for customers in steel, chemicals, and electronics sectors.

Praxair

Company Overview

Formerly a standalone company, Praxair is now part of Linde plc but continues to be recognized for its engineering capabilities in ASUs. The company has supplied numerous ASUs worldwide, particularly in the Americas, with expertise in cryogenic technology and gas pipeline supply systems.

Universal Industrial Gases, Inc.

Company Overview

UIG specializes in the design and supply of ASUs ranging from small to mid-scale. Their offerings include turnkey services, on-site gas supply systems, and cryogenic equipment. UIG is particularly known for its flexibility in delivering cost-effective solutions to metals, chemicals, and glass industries.

Sichuan Air Separation Plant

Company Overview

in 1966, Sichuan Air Separation Plant (SASPG) is one of China's largest manufacturers of cryogenic air separation plants, LNG equipment, cryogenic tanks, and industrial gas systems. Covering 800,000 m² with over 2,500 employees, SASPG offers more than 200 product categories, including oxygen, nitrogen, argon, carbon dioxide, and LNG equipment. With strong R&D capabilities, ASME and ISO certifications, and exports to over 30 countries, SASPG is a leading enterprise in global cryogenic and industrial gas solutions.

Messer

Company Overview

Messer is a globally recognized supplier of air separation plants and industrial gas solutions. Its ASUs are designed to produce oxygen, nitrogen, and argon with high energy efficiency and operational reliability.

Messer is known for tailored plant engineering, supporting industries such as metallurgy, chemicals, healthcare, and electronics. The company operates in more than 30 countries with a strong customer-centric approach.

Cryogenic Industries

Company Overview

Cryogenic Industries, part of the Nikkiso , specializes in air separation systems, cryogenic pumps, cold boxes, and LNG equipment. Its compact and efficient ASU units are deployed globally, serving industries such as energy, petrochemicals, and industrial gases.

The company is highly regarded for engineering excellence and its ability to provide customized cryogenic solutions tailored to client needs.