The Application Prospects Of "Nitrogen Generator" In Medium And Low Power Fiber Laser Cutting

The Importance of Nitrogen in Laser Processing

Nitrogen is the most widely used process gas in laser cutting, thanks to its reactive inertness. It is used to ensure the high-quality cutting performance, especially when high-quality cutting is required. Nitrogen eliminates oxygen from the air, thus preventing the oxygen from reacting with the hot metal,acquires an ideal and bright cut surface without affecting the color of the material (depending on the purity of the nitrogen used). As an inert gas, nitrogen allows the laser to work in an oxygen-free environment, preventing the edges from oxidizing. Nitrogen also plays a significant role in reducing costs, increasing cutting speed, enhancing productivity, improving control performance, and achieving efficient processing.

The Method of Nitrogen Supply in Laser Cutting

In the traditional laser cutting market, nitrogen, which is used as an process gas, is mostly supplied by using liquid nitrogen tanks, a common method when there is a demand for a large flow of nitrogen for cutting. Of course, you can produce nitrogen on-site in your factory. By integrating a high-pressure nitrogen generating system into the laser cutting equipment, manufacturers can ensure a continuous supply of nitrogen in 24 hours. This method not only reduces operating costs but also allows for complete control over gas usage in a cost-effective manner. In addition, companies no longer need to transport nitrogen by truck, which can significantly reduce CO2 emissions and promote environmental sustainability.

(Insert image 1: Liquid nitrogen supply method

Image 2: Bright Cutting Process Gas Supply Unit 

The bright cutting process gas supply system is a special energy-saving nitrogen generation equipment for laser cutting. 

Industry veterans are aware that high-flow nitrogen laser cutting means higher operational costs, so people use air cutting to solve the problem. Compressed air can be used as an process gas in laser cutting and can also improve the speed and economic benefits of laser cutting. However, since air contains 21% oxygen, using compressed air as a process gas for laser cutting cannot produce clean-cut parts (usually, these parts need to be deburred before proceeding to the next process, which requires additional labor). You might find yourself back in the scenario of using liquid nitrogen (nitrogen purity 99.999%). Is there a way to achieve high quality while reducing costs? This depends on the importance of the color of the cut edge you are cutting. Using high-pressure nitrogen with relatively low purity to obtain slightly oxidized cutting surfaces, for most carbon steel cutting factories, this quality of cut is sufficient for parts that will undergo painting or welding later, because the color of the cut edge is not the necessary request.

Therefore, our bright cutting expert system can adjust the purity of nitrogen production based on your cutting material and thickness, allowing you to achieve high-quality cutting sections at the most economical purity level. Remember, by reducing the purity of nitrogen, you can significantly cut costs.

(Cost comparison line graph 1)

At the same time, this system can also achieve an oxide-free (bright surface) effect when cutting stainless steel. This is the unique advantage of our bright cutting process gas supply system. For companies that need nitrogen for laser cutting, using this equipment can significantly reduce gas costs without the need to purchase nitrogen from external sources. Producing nitrogen on-site also allows for better control over the most economical nitrogen purity, ensuring stable cutting quality and freeing the company from dependence on external suppliers. Moreover, by producing nitrogen on-site, companies can reduce transportation emissions and minimize reliance on traditional nitrogen production methods, contributing to environmental sustainability. In summary, for companies looking to improve the efficiency and environmental friendliness of their laser cutting processes, the bright cutting process gas supply system is a very practical choice.