Fiber Laser Cutting vs CO2 Laser Cutting: Which One is Better?

In the field of metal cutting, laser cutting technology provides high precision and efficiency. Among various types of laser cutting machines, fiber laser cutting and CO2 laser cutting are the most prominent. Both methods have unique advantages and are suitable for a variety of applications. In this article, we’ll provide an in-depth comparative analysis of these two technologies in several key aspects to help you make an informed decision about which laser cutting machine best suits your needs.

First of all, we can understand the comparison between fiber laser cutting and CO2 laser cutting through the table below.


Fiber Laser Cutting

CO2 Laser Cutting

Cutting Speed

Faster cutting speeds

Slower cutting speeds

Energy Efficiency

Higher energy efficiency

Lower energy efficiency


Lower maintenance requirements

Higher maintenance requirements

Cutting Thickness Range

Suitable for thin to medium materials

Suitable for thicker materials

Operating Costs

Lower operating costs

Higher operating costs

Initial Investment

Higher initial investment

Lower initial investment

Beam Quality

Superior beam quality

Good beam quality

Material Compatibility

Broad material compatibility

Limited material compatibility

Environmental Impact

Minimal environmental impact

Moderate environmental impact

1. Laser light source and transmission


Fiber laser cutting machines use solid-state diodes to generate laser beams. Compared with CO2 laser cutting, which uses gas mixing to generate laser beams, it can provide higher efficiency, better beam quality and smaller focused spots, allowing for finer cutting. CO2 lasers are versatile and can be easily adjusted to suit different materials and thicknesses.


2. Processing materials

Both fiber optic and CO2 laser cutters can process a variety of materials, including metals, plastics, wood, and composites. However, each technique has its advantages over certain materials:

Fiber laser cutting:
Ideal for cutting metals such as steel, stainless steel, aluminum and copper. Fiber laser cutting machines are particularly suitable for cutting thin to medium thickness materials.

CO2 laser cutting:
Ideal for non-metallic materials such as acrylic, wood, rubber and textiles. For thicker or heat-sensitive non-metallic materials, CO2 laser cutting machines can provide smooth edges and minimal heat-affected zones, making them suitable for complex designs and delicate materials.

3. Cutting efficiency and quality


Fiber laser cutting machines can provide higher cutting speeds, produce narrower kerf widths and minimal deformations, and are suitable for mass production; CO2 laser cutting machines have slower cutting speeds than fiber cutting machines but can provide smooth results for non-metallic materials. Cutting, suitable for small and medium-sized production.

4. Maintenance and operating costs

Fiber laser cutting:
Because of their solid-state design and fewer moving parts, they generally require less maintenance. Consumes less energy than CO2 lasers, reducing operating costs over time.

CO2 laser cutting:
Regular maintenance of the gas mixture, mirrors, and lenses is required, which may incur additional costs. Consumes more energy than fiber lasers, resulting in higher operating costs, especially when used continuously.



You can choose the right fiber laser cutting machine and CO2 laser cutting machine based on your specific cutting needs.

If your main focus is cutting metal efficiently and quickly, then a fiber laser cutting machine is the best choice. Its low maintenance and operating costs also make it an attractive option for high-volume metal processing. On the other hand, if your job involves a variety of materials, especially non-metals, and requires complex designs and engravings, a CO2 laser cutter may be more suitable. It provides versatility and high-quality finishes on non-metallic materials.

If you are looking for a high-power fiber laser cutting machine, please consult LZK CNC Machine experts, we provide you with high-quality high-power fiber laser cutting machines.


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