With increasing advancements in fiber laser power and reducing entry costs, fiber laser cutting systems have become highly competitive. The demand for high-quality, efficient, and cost-effective cutting solutions has surged, paving the way for innovations like MixGas (a hybrid gas mixture) cutting technology. This approach is proving effective in meeting industry demands by tackling challenging materials and enhancing production profitability.
What Makes MixGas Cutting Advantageous in Fiber Laser Applications?
Fiber laser cutting machines commonly use nitrogen for high-speed cuts and oxygen for superior edge quality, though each method has limitations. MixGas technology combines nitrogen (N₂) and oxygen (O₂) in a specified ratio, blending the benefits of both gases to enable faster cutting speeds and enhanced quality compared to air or nitrogen-only cuts. The higher the laser power, the greater the performance gains from MixGas use.
Performance Gains with MixGas: A Speed and Quality Comparison
Han’s Laser, a leading fiber laser technology innovator, leverages its advanced components and vertically integrated manufacturing processes to develop fiber lasers that optimize MixGas applications. When applied to carbon steel, high-power lasers ranging from 6 kW to 30 kW achieve remarkable performance, offering industry-leading cut quality and minimizing post-processing requirements.

30 kW MixGas Cutting Results for 8 to 30 mm Carbon Steel
Enhanced Cutting Thickness and Surface Quality
MixGas systems enable cutting of thicker carbon steel with minimal dross (or slag), outperforming both nitrogen and air-cutting methods. With MixGas, a 6 kW laser can cut carbon steel up to 8 mm thick with minimal burrs, a 12 kW laser can achieve similar quality on carbon steel up to 16 mm, a 20 kW laser can handle up to 20 mm, and a 30 kW laser can achieve clean cuts on carbon steel up to 30 mm. In contrast, using air or nitrogen at these power levels results in poorer cut quality (with excessive slag) and cannot achieve these thicknesses.
| Power | Max. Cutting Thickness |
| 6 kW | 8mm carbon steel |
| 12 kW | 16mm carbon steel |
| 20 kW | 20mm carbon steel |
| 30 kW | 30mm carbon steel |
1.Improved Cutting Speeds
When compared with pure oxygen cutting, MixGas significantly increases cutting speeds across various power levels. For example, a 6 kW MixGas setup can increase the cutting speed on 5 mm carbon steel by 175%. On 8 mm carbon steel, a 12 kW setup improves speed by 284%, while a 20 kW setup boosts speed by 271% on 12 mm carbon steel. A 30 kW MixGas setup achieves a 400% increase in cutting speed on 16 mm carbon steel. This rapid processing translates into greater throughput and efficiency for manufacturers.
| Power | Cutting Thickness | Increased |
| 6 kW | 5mm carbon steel | 175% |
| 12 kW | 8 mm carbon steel | 284% |
| 20 kW | 12 mm carbon steel | 271% |
| 30 kW | 16 mm carbon steel | 400% |
2.Lower Gas Pressure Requirements
MixGas cutting typically operates at lower pressures than nitrogen or air cutting. Reduced gas consumption helps curb operating costs, further enhancing the cost-effectiveness of fiber laser cutting for high-volume applications.

6 kW Cutting Speed Comparison (m/min)

12 kW Cutting Speed Comparison (m/min)

20 kW Cutting Speed Comparison (m/min)

30 kW Cutting Speed Comparison (m/min)
Industry Applications: Efficiency and Quality Gains in Production
Applying MixGas with Han’s Laser fiber lasers has demonstrated significant gains in both quality and efficiency, with production efficiency rising by around 20%. The improved cut quality not only reduces post-processing time, such as grinding or slag removal, but also enhances overall product finish and consistency.
Reliable, Advanced Fiber Laser Systems for High-Quality Production
Han’s Laser fiber laser systems are built with high beam quality, compact design, and reliable performance, meeting the rigorous demands of cutting industries worldwide. These systems play an instrumental role in industries like renewable energy and shipbuilding, where precision and reliability are crucial to meeting quality and sustainability targets.
With MixGas, Han’s Laser offers a robust solution for modern manufacturing, setting a standard for efficiency, cost-effectiveness, and quality that aligns with the growing needs of high-demand industries.
