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  • Nitrogen Generators for Laser Cutting and Laser Welding

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    Nitrogen Flow Rate: 1～5000 Nm³ / h

    Nitrogen Purity: 95%～99.9995%

    Nitrogen Dew Point: 0～-60℃

    Nitrogen Pressure: 0.1～3.0Mpa

    Nitrogen is produced within 30 minutes

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High-power fiber laser cutting equipment faces various pain points when cutting different materials:

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1.Oxygen cutting of thin carbon steel slow and prone to slag adherence.
2.Air cutting of carbon steel results in severe slag formation, increasing the cost of grinding
3.Liquid nitrogen cutting of carbon steel has a high cost of use, a rough cutting surface, severe slag adherence on medium-thick carbon steel, and is unable to cut thick carbon steel.
4.Oxygen cutting of carbon steel has high requirements for the quality of the steel sheet. Factors such as the presence of an oxide layer, severe rusting, and material quality can all affect the stability of the cutting quality.
5.When cutting stainless steel or carbon steel in large quantities with air, it is prone to cause contamination of the optical lens.
6.Liquid nitrogen cutting of aluminum sheets results in severe dross and poor section quality.
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Nitrogen Generator for Laser Cutting and Laser Welding

LUGAS uses a new gas – separation technology. Its principle is to utilize the differences in the “adsorption” performance of molecular sieves for different gas molecules to separate the components in a gas mixture. Taking air as the raw material, it uses a high – efficiency and highly – selective solid adsorbent to selectively adsorb oxygen (usually oxygen is more preferentially adsorbed by the molecular sieve compared to nitrogen for nitrogen production) and thus separate nitrogen and oxygen in the air.

 

Nitrogen Flow Rate: 1～5000 Nm³ / h

Nitrogen Purity: 95%～99.9995%

Nitrogen Dew Point: 0～-60℃

Nitrogen Pressure: 0.1～3.0Mpa (For higher pressures, a booster is required)

Nitrogen is produced within 30 minutes

Note: Pressure, purity and flow rate are stable and adjustable to meet the different needs of customers.

    Working Principle of Nitrogen Generator for Laser Cutting and Laser Welding

    Nitrogen gas generator takes clean compressed air as raw material and carbon molecular sieve as the adsorbent, and utilizes the principle of variable pressure adsorption to obtain nitrogen at room temperature. According to the difference in the adsorption amount of oxygen and nitrogen in the air on the surface of carbon molecular sieve and the diffusion rate of oxygen and nitrogen in the carbon molecular sieve, the opening and closing of the programmable controller controls the programmed valves, realizing the process of adsorption under pressure and desorption under reduced pressure, completing the separation of oxygen and nitrogen, and obtaining the nitrogen with the required purity.

    Nitrogen generator is based on the principle of variable pressure adsorption, using high quality carbon molecular sieve as adsorbent, and extracting nitrogen from air as raw material under certain pressure. The purified and dried compressed air is adsorbed under pressure and desorbed under reduced pressure in the adsorber. Due to the aerodynamic effect, the diffusion rate of oxygen in the micropores of the carbon molecular sieve is much larger than that of nitrogen, and oxygen is preferentially adsorbed by the carbon molecular sieve, while nitrogen is enriched in the gas phase to form finished nitrogen. Then after depressurization to atmospheric pressure, the adsorbent desorbs the adsorbed oxygen and other impurities to realize regeneration. Generally, two adsorption towers are set up in the system, one tower adsorbs nitrogen, the other tower desorbs and regenerates, and the opening and closing of the pneumatic valve is controlled by PLC program controller, so that the two towers circulate alternately to realize the purpose of continuous production of high-quality nitrogen.

    LUGAS on-site nitrogen generator has the features of simple process, high degree of automation, fast gas production within 30 minutes, low energy consumption, product purity can be adjusted according to user’s needs in a wide range, easy operation and maintenance, low operation cost, and strong adaptability of the device, etc. Therefore, it is quite competitive among the nitrogen generating equipment below 1,000Nm3/h, which is more and more welcomed by the medium-sized and small-sized nitrogen users, and the nitrogen generator has become the preferred choice of medium-sized and small-sized nitrogen users.

    Technical Features

    The nitrogen machine features an advanced and reasonable structure, light and flexible operation, easy maintenance.

    The compressed air is equipped with air purification and drying treatment device, clean and dry compressed air, which is conducive to prolonging the service life of molecular sieve.

    The new pneumatic shut-off valve is adopted, with fast opening and closing speed, no leakage and long service life, which can meet the frequent opening and closing of pressure change adsorption process with high reliability.

    Perfect process design flow, uniform airflow distribution, reduce the high speed impact of airflow. Reasonable internal components reduce energy consumption and investment costs reasonable internal components.

    Selection of high-intensity, high-efficiency, low-energy molecular sieve, intelligent interlocking unqualified nitrogen evacuation device to ensure the quality of product nitrogen.

    Stable equipment performance, easy operation, stable operation, high degree of automation, unmanned operation can be realized, low annual operating failure rate

    Adopting PLC control, fully automatic operation can be realized, optional nitrogen device flow, purity automatic adjustment system, remote control system.

    Advantages of LUGAS

    LUGAS as a professional on-site nitrogen generator manufacturer and supplier, we have been specializing in the production of gas separation and purification technology for many years, with rich experience and cases, we not only sell PSA nitrogen generator, but we also have membrane nitrogen generator and the whole system equipment. We have our own professional factory and foreign trade sales team, we can provide the most professional analysis and offer competitive price, hurry to contact us!

    • Cost & energy Saving 

      Cost saving of 50% to 90% when compared to bulk liquid supply, dewar, and Nitrogen cylinders

      With a continuous and uninterrupted supply of nitrogen gas right at your disposal, you can avoid any cumbersome delivery contracts.

      This true on-demand unit produces nitrogen only when required. The system goes into standby mode automatically whenever there is no demand for gas. Moreover, the generator keeps a tab on the pressure level continuously and matches it with the nitrogen demand.

    • Safety Guarantee 


      PSA nitrogen generators offer better safety assurance compared to bulky high-pressure cylinders.

      With a continuous and uninterrupted supply of nitrogen gas right at your disposal, you can avoid any cumbersome delivery contracts.

    • Reliability 

      At LUGAS group, we have installed thousands of systems worldwide, so you can trust that our team of skilled engineers, manufacturers, and customer service representatives will provide valuable expertise in designing, building, and maintaining your generator.

      Our ISO-9001 certified design and manufacturing facilities ensure that quality is maintained and guaranteed.

    PSA Nitrogen Generator Process Flow

    There are two adsorption towers equipped with carbon molecular sieves, and while one tower (A) is working, the other (B) is depressurized and desorbed.
    Clean air into the work of the adsorption tower (A), through the molecular sieve when oxygen, carbon dioxide and water are adsorbed, flow to the exit end of the gas is nitrogen and traces of argon and oxygen.
    Another tower (desorption tower B) so that the adsorbed oxygen, carbon dioxide and water from the molecular sieve microporous detachment discharged into the atmosphere.
    In this way, the two towers take turns to complete the separation of nitrogen and oxygen, continuous output of nitrogen.
    The final product is a constant supply of high purity nitrogen gas produced on site, the cost of which is much lower than the price of liquid or bottled gas.

    PSA Nitrogen Generator Applications

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