Nitrogen Generator High Purity Reliable Performance Best Quality Manufacturer Supplier

- Oct 20, 2017-

Nitrogen Generator High Purity Reliable Performance Best Quality Manufacturer Supplier

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Welcome to CANGAS PSA Nitrogen gas generators. We are the market leaders for on-site production of Nitrogen and oxygen gas. PSA Nitrogen generators have become the preferred source of producing on-site Nitrogen gas. Nitrogen plants based on Pressure Swing Adsorption (PSA) technology are reliable and economical. In fact, most customers recover their payback vis-a-vis cylinders, in less than 2 years. We offer whole series of Standardized Models for various purities and capacities.


What is PSA technology?

Air is composed of 78% Nitrogen and 21% Oxygen. PSA Nitrogen generation technology works on the principle of air separation by adsorbing Oxygen and separating Nitrogen.

Pressure Swing Adsorption (PSA Nitrogen) process comprises of 2 vessels filled with Carbon Molecular Sieves (CMS). Pre-filtered compressed air is passed through one CMS filled vessel. Oxygen is adsorbed by the CMS and Nitrogen comes out as the product gas. Upon saturation of the CMS in the vessel, the process switches nitrogen generation to the other vessel, while allowing the saturated bed to undergo regeneration by depressurization to atmospheric pressure. The waste gas (oxygen, carbon dioxide, etc.) is discharged into atmosphere. The cyclical nature of the process between the two vessels ensures continuous production of pure Nitrogen.



1. CANGAS do business on big international platform of high credibility - Alibaba. We worked with Alibaba at the date of starting international business and we'd been golden supplier of Alibaba for 12 years. Every year Alibaba will do assessment for CANGAS in financial, manufacturing and trading, and if verification is good, we'd awarded the BV certification proving that CANGAS is the qualified supplier. You won't worry about funding risks doing business with CANGAS since Alibaba give credit assurance to golden suppliers. We are exhibitor of CANTON FAIR every year and of overseas exhibitions in Brazil, Indonesia, Pakistan, Germany, Russia, and so on to get in touch valuable business partners and customers on earth and to get higher international attention. Obtaining good reputation from customers in 80+ countries in the world, we get repeated orders from many of them with whom we’d developed good long-term relationship, and more importantly, some of them (10+) who have good strength of business had been our local distributors for more than 10 years. CANGAS even got its trade mark certified in the Indonesia to do business in the local market to be fairer and more legitimate. We participate in summit of air separation field, work with universities and institutes and finally get recognized by all sectors of the society.

2. CANGAS offer reasonable prices. By customer feedback, market analysis, researching and investigation, successful experience of 20
+ years in the air separation field, we give professional consultancy which contributes to reasonable marketing and pricing basis and tactics in the target markets and market segments. And by developing specialized models for specific applications, we can meet all customers’ requirements of different levels with affordable costs. We might say whenever there is a gas demand, there will be a suitable affordable effective solution from CANGAS.


3. CANGAS take pride in the good quality of its products. Not only get the best functional performance or get the technical targets met, but also insure no quality issue within the design service life of the equipments and ensure that the corresponding standards will be met, especially for batch orders. As a complete plant  and equipments supplier, CANGAS is ISO9001, CE, BV certificated. The QC department conducts quality plan for each unit being manufactured to achieve the best quality. All the steps including sub-vendor assessment, incoming inspection, process inspection, painting inspection, all kinds of test, performance and function inspection, packing inspection and final inspection won’t be skipped. And by years of effort, we’d developed a good supply chain. Particularly for overseas markets, the accessaries and corollary equipments will be from reputable famous brands in the world to ensure the quality of entire plant.


4. CANGAS offer you the best products. We have wide ranges and full series of standardized models of air separation products of full line for your choice. Customized products are also available at demand. We have our own developing and researching center to give the best solutions to all the market segments. Technical team of good strength and order of 300+ units of air separation products every year provide strong basis of developing and researching. 20+ years of experience and time-proven technology and design ensure the productivity and effectiveness of all CANGAS products. Plus good quality control, strict material selection, professional design, advanced manufacturing technique, 13 strict inspections, even unique compact design with good appearance and humanized, standardized functions and applications, the CANGAS products had brought sizable profits to all the re-sellers and users in more than 80 countries around the world by More economic, More convenient, More reliable.


5. CANGAS is a firm of good reputation. Identified as the Beijing Key High-tech Corporation, CANGAS is one of the initial companies involved in air separation industry. CANGAS is committed to continuously providing core value to customers in all industries. With 27,000 square meters’ production base with production equipments of high-end, strong capacity of scientific research, complete and perfect managing system, and an entire floor of 1,000+ square meters’ headquarters in Beijing with clean spacious office environment, CANGAS had become an integration of R&D, design, manufacture, sales, service of air separation products. Plus the cheerful, energetic, excellent teams and managers, splendid enterprise culture, higher qualified personnel, good enterprise image, high brand awareness, high customer satisfaction, high employee satisfaction, ability of handling huge international projects by abundant capital strength, CANGAS had been recognized as the industry leader of air separation field.We only do one thing, but we do it right and good - focusing on air separation for 20+ years.


6. CANGAS provide excellent after-sales service. We work with customers or consultants appointed by customers to give technical service and consultancy in pre-sales and medium-sales. Periodical mail tracking and call-back by CANGAS professional service team enable CANGAS to see clearly and know well the running status and functional performance of each sold unit. The online consultation, product sample, technical guidance, personnel training, installation, commissioning, scheduled maintenance, emergency maintenance, annual survey/calibration, technology support, technical exchange, three guarantees for repair, replacement or compensation of faulty products, 18-month quality guarantee, spare parts stock and supply, especially the local service network established by CANGAS distributors and long-term partners such as Atlas Copco clear away the worries regarding the after-sales service of the customers.


CANGAS PSA oxygen generator is a compact on-site oxygen generation system, which can replace cylinders or cryogenic oxygen supply system. With the strengths of compact, low cost, easily operated, and convenient, it has been widely used in many kinds of fields such as petrochemical, electric steel furnaces, glass making, paper making, ozone generation, aquaculture, aerospace, medical industry, mining, oxygen enriching, oxygen bar, welding and cutting, etc.

Our Services

CANGAS has the obligation for the service after product selling. The scope of service after product selling are as below.

    To establish user’s files.

    To investigate user or telephone calls at a fix date.

    To be responsible for the maintenance at equipment.

    To provide technological consultant service.


For every sold PSA oxygen generator, PSA nitrogen generator, PSA Oxygen purifier, PSA nitrogen purifier, hydrogen generator, VPSA oxygen generator, VSA oxygen generator, Membrane oxygen generator, Membrane nitrogen generator, Liquid (cryogenic) oxygen, nitrogen and argon generator, CANGAS establishes user’s files in computer. We collect the content of contract, technical parameters after commissioning, equipment working state, equipment operating state, user’s opinion or suggestion and so on, then we record them in computer so that we can look up easily to serve the user better and improve our service work. Therefore help from users would be greatly appreciated. It is better that the customers send us the record list about equipment operating state and maintenance record by email, fax or post periodically.


We will send technician to investigate or telephone call at least one time in a year to know the operating state of user’s gas generation equipments, user’s opinion and suggestion, hence we hope user to persist the work in the record list of equipment operating state and maintenance record. Meanwhile we truly hope and appreciate user’s valuable opinion and suggestion about our equipment and our work.


If the equipment or instrument break down within guarantee period and the damage is within the scope of free maintenance guarantee, CANGAS will unconditional maintain or provide corresponding new parts at once. If the maintenance is not within the scope of free maintenance, CANGAS only charge for the maintenance fee and expenses generated during the maintenance process, and will not take any technological cost.


Moreover, CANGAS distributors in the world build the international service network for all CANGAS products to provide in time local service at your need. They are Russia, Bangladesh, Kazakhstan, Uzbekistan, Pakistan, Iran, Indonesia, Philippines, Australia, USA, Brazil.


For users, CANGAS provide technological consult at any time replying any question happened on the user’s working process. We do the best to resolve the related problem which is encountered by user.


CANGAS' commitment: User’s difficulty is our difficulty! User’s profit is our profit!

Buying Guides

The following points need to be confirmed by the purchaser before quoting and purchasing.

1. Country and standards (CE, PED, ASME, UL, API, GHOST, etc.).

2. Application.

3. Site conditions: altitude, temperature, humidity, surroundings, power supply specifications (voltage/Hz).

4. Basic requirements on capacity: purity, displacement (max output flow), product gas delivery pressure.

5. Any special requirements, such as for medical, short delivery time, shockproof, explosionproof, portable, movable, oil-free for product gas, no harmful gases (CO, CO2, SO2, etc.) in product gas, low dew-point, ....