Portable laser welding Nitrogen Generator - 99.999% Purity - Compact laser welding Nitrogen Producing Machine
High Efficiency Nitrogen Generator Designed for Continuous Laser Welding Operation
Our Nitrogen Generator Specifically for Laser Welding
No need to buy gas cylinders, the machine cost can be recovered in a few months.
In welding work, shielding gas is indispensable. The quality and cost of gas have always been major issues.
In order to solve these problems, we independently with our supplier, developed a Nitrogen Generator Specifically for Laser Welding.
Its working principle is to obtain high-purity nitrogen by filtering and purifying air. With 99.999% high-purity nitrogen, the welding effect is comparable to argon. No need to buy gas cylinders, the machine cost can be recovered in a few months.
Ultra-short preheating time of 5 minutes, the purity of nitrogen can reach 99.999%. It basically enables welding work to start as soon as the machine is turned on, without having to wait for a long time.
In addition, it has some other advantages that bottled gas cannot achieve, such as continuous stability of gas output and constant gas pressure. These two factors may cause unstable welding quality.
How Industrial Nitrogen Gas Generators Work?
Industrial nitrogen generators can produce high-purity nitrogen on demand for a fraction of the cost of conventional gas supply sources such as cylinders, dewars, or bulk liquid supply.
The Science Behind Nitrogen Generation
Nitrogen can be generated from atmospheric air. The air we breathe is composed of 78% nitrogen and 21% oxygen. The remaining 1% is trace gases like argon and carbon dioxide.
Industrial gas generation technology leverages the molecular size difference between nitrogen and oxygen to separate and capture each gas. Nitrogen molecules are much larger than oxygen molecules and we use the size difference between these two molecules to physically separate atmospheric air. This allows industrial gas users to use pressure swing adsorption (PSA) systems to selectively filter and purify gases.
CE Certified Nitrogen Generator for Laser Welding 99.999% Purity N2 Producing Machine
The purity of nitrogen is crucial for a good welding
When using nitrogen for welding, the purity of nitrogen is crucial. Low-purity nitrogen cannot provide complete protection. Generally speaking, the following problems may occur when using low-purity nitrogen: porosity, inclusions and embrittlement, poor weld formation.
For example, stainless steel (such as 304): oxygen will intensify the oxidation of chromium (Cr), destroy the passivation film on the surface of stainless steel, and reduce the corrosion resistance of the weld; impurities may increase the risk of intergranular corrosion.
Generally speaking, for factories that perform continuous welding, according to the market price of argon and nitrogen, Customers can recover the cost of this nitrogen generator within 1 month or even more than 10 days.
And the service life of this machine is 5-6 years, and there are no consumables. This greatly saves the gas cost and total operating cost of the factory.
Nitrogen Gas Generators
Nitrogen generators for laser welding machines provide a continuous, high-purity nitrogen supply, ensuring a stable and oxidation-free welding environment. They enhance weld quality, reduce oxidation, and improve efficiency by eliminating the need for bottled nitrogen. These generators are cost-effective, reliable, and ideal for precision welding applications.
- Ultra compact design and wide range of flow rates, make it the perfect generator for a variety of lower flow nitrogen applications.
- Significant cost savings over cylinder or liquid supply provides a typical return on investment of less than 24 months.
- Uses pressure swing adsorption to produce a continuous, uninterrupted supply of 95 to 99.999% purity nitrogen gas from clean, dry compressed air.
- 100% functional tested with 2 year warranty.
- Eliminates safety concerns associated with transporting and storing pressurized gas cylinders or liquid nitrogen.
- Reduces carbon footprint by eliminating gas delivery with positive impacts on sustainability targets.
- eco-mode energy savings control reduces energy consumption during periods of low demand.
- Optional integrated O2 analyzer and dew point sensors (N2 or inlet air)
How Do You Choose the Right Nitrogen Gas System for Your Welding Work?
The selection of a suitable nitrogen gas system depends on your production capacity and purity grade requirements. For continuous welding processes, a nitrogen generator offers more advantages than gas cylinders or tanks.
First determine your daily nitrogen consumption by multiplying the number of welding hours by the gas consumption per hour. This helps you choose the right system capacity and prevents under- or over-sizing of your installation.
Purity grade is important for welding quality. General welding processes require 99.5% purity, while precision work may require 99.9% or higher. Modern nitrogen generators can reliably deliver these specifications.
Consider the available space and energy infrastructure. Compact systems fit in smaller workshops, while larger installations are more suitable for industrial environments with high capacity requirements.
Why is nitrogen better for parts that are welded?
Nitrogen is better for components that are welded because it acts as an inert gas that prevents oxidation by displacing oxygen from the welding zone. This results in cleaner weld seams, less spatter formation, and higher welding quality. Nitrogen gas protects the molten metal against contamination and ensures consistent results across various welding processes.
Why Nitrogen is the Ideal Choice for Welding Processes
Nitrogen functions as a shielding gas during welding processes by creating an inert atmosphere around the weld seam. Unlike regular air, which contains 21% oxygen, nitrogen displaces these reactive gases and prevents unwanted chemical reactions.
The chemical properties of nitrogen make it extremely suitable for welding applications. As an inert gas, nitrogen does not react with molten metal, thereby preserving the integrity of the weld seam. This is especially important in precision welding work where any contamination can affect strength and durability.
Nitrogen welding offers superior results because it completely controls the welding atmosphere. The gas flows around the welding zone and creates a protective barrier that effectively prevents oxidation and nitrification. This leads to smooth, clean weld seams with minimal post-processing.
How Does Nitrogen Prevent Oxidation During Welding?
Nitrogen works as an oxygen displacer by replacing the air around the welding zone with an inert atmosphere. When metal is heated to melting temperature, it normally reacts with oxygen from the air, resulting in oxidation and weak weld seams.
The oxidation prevention process occurs through nitrogen purging of the welding environment. Nitrogen gas flows continuously over and around the weld seam, preventing oxygen from having the opportunity to react with the molten metal. This technique is especially effective with thin materials and precision work.
The result of this protection is visible in the quality of the weld seam. Without oxidation, the metal remains bright and clean, without the dark discoloration or porous structure that occurs when exposed to oxygen. This means stronger connections and less risk of cracks or weak spots.
| Model | N2G-80 |
| Nitrogen Purity | 99.999% |
| Nitrogen Flow | 1.1Nm3/h |
| Compressed air pressure | 0.7-0.9 Mpa |
| Dimensions Net | 325 x 540 x 710 mm |
| Power | 80 Watt |
| Voltage | AC 220V/240V 50 Hz |
| Nitrogen Pressure | 0.1~0.4 Mpa |
| Net Weight | 70 kg |
| Continues Gas delivery | 18.5 l/min |